Pemadam api

<h1 class="firstHeading" id="firstHeading" lang="id"> Pemadam api</h1> <div class="mw-body-content" id="bodyContent"> <div id="siteSub"> Dari Wikipedia bahasa Indonesia, ensiklopedia bebas</div> <div id="contentSub"> <div class="flaggedrevs_short plainlinks noprint" id="mw-fr-revisiontag"> <div class="flaggedrevs_short_basic"> <img alt="Ini adalah versi yang telah diperiksa dari halaman ini" class="flaggedrevs-icon" src="https://id.wikipedia.org/static/1.27.0-wmf.12/extensions/FlaggedRevs/frontend/modules/img/2.png" title="Ini adalah versi yang telah diperiksa dari halaman ini" /><img alt="tampilkan/sembunyikan detail" class="fr-toggle-arrow" id="mw-fr-revisiontoggle" src="https://id.wikipedia.org/static/1.27.0-wmf.12/extensions/FlaggedRevs/frontend/modules/img/arrow-down.png" style="display: inline;" /></div> <div id="mw-fr-revisiondetails-wrapper" style="position: relative;"> </div> </div> </div> </div> <div class="mw-content-ltr" dir="ltr" id="mw-content-text" lang="id"> <div class="thumb tright"> <div class="thumbinner" style="width: 152px;"> <a class="image" href="https://id.wikipedia.org/wiki/Berkas:Extincteur-p1010032.jpg"><img alt="" class="thumbimage" data-file-height="1812" data-file-width="1088" height="250" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Extincteur-p1010032.jpg/150px-Extincteur-p1010032.jpg" width="150" /></a> <div class="thumbcaption"> </div> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 152px;"> <div class="thumbcaption"> Alat pemadam api</div> </div> </div> <b>Alat pemadam api</b> adalah alat perlindungan kebakaran aktif yang digunakan untuk memadamkan <a href="https://id.wikipedia.org/wiki/Api" title="Api">api</a> atau mengendalikan <a class="mw-redirect" href="https://id.wikipedia.org/wiki/Kebakaran" title="Kebakaran">kebakaran</a> kecil, umumnya dalam situasi darurat. Pemadam api tidak dirancang untuk digunakan pada kebakaran yang sudah tidak terkontrol, misalnya ketika api sudah membakar <a href="https://id.wikipedia.org/wiki/Langit-langit" title="Langit-langit">langit-langit</a>. Umumnya alat pemadam api terdiri dari sebuah <a class="mw-disambig" href="https://id.wikipedia.org/wiki/Tabung" title="Tabung">tabung</a> ber <a class="new" href="https://id.wikipedia.org/w/index.php?title=Tekanan_tinggi&action=edit&redlink=1" title="Tekanan tinggi (halaman belum tersedia)">tekanan tinggi</a> yang berisi <a href="https://id.wikipedia.org/wiki/Bahan" title="Bahan">bahan</a> pemadam api.<br /> Ada dua jenis utama alat pemadam kebakaran : yaitu bertekanan di dalam dan dioperasikan oleh cartridge. Dalam unit bertekanan di dalam, gas penyembur disimpan pada ruang yang sama dengan bahan pemadam kebakaran tersebut. Tergantung pada bahan yang digunakan, jika berbeda maka bahan pendorong yang digunakan juga berbeda. Pada alat pemadam berisi bahan kimia kering, umumnya digunakan nitrogen; alat pemadam air dan busa biasanya menggunakan udara. Alat pemadam api bertekanan di dalam adalah jenis yang paling umum. Sedangkan jenis Alat pemadam yang dioperasikan Cartridge gas penyembur berisi dalam cartridge yang terpisah yang harus ditekan lebih dulu sebelum mengalir keluar, mendorong bahan pemadam.<br /> Jenis ini tidak seperti biasa, digunakan terutama untuk fasilitas industri, di mana memerlukan penggunaan dengan kemampuan yang lebih tinggi dari yang biasa. serta memiliki keuntungan karena lebih sederhana sehingga memungkinkan pemakai untuk cepat melaksanakan pemadaman, hingga mampu mengendalikan api dalam kurun waktu yang cepat. Tidak seperti jenis bertekanan di dalam yang menggunakan nitrogen, alat pemadam ini menggunakan pendorong karbon dioksida bukan nitrogen, meskipun model cartridge nitrogen juga kadang digunakan pada temperatur rendah.<br /> Jenis alat pemadam yang digunakan di seluruh dunia dioperasikan oleh Cartridge tersedia dalam bahan kimia kering dan jenis serbuk kering serta berbahan basah seperti air, busa, kimia kering (kelas ABC dan BC), dan bubuk kering (kelas D) .<br /> Alat Pemadam api selanjutnya terbagi lagi menjadi pemadam genggam portable yang juga disebut alat pemadam genggam dengan berat antara 0,5-14 kilogram (1 sampai 30 pon), karena mudah dibawa dengan tangan. berikutnya adalah Alat pemadam api beroda biasanya memiliki berat badan 23 + kilogram (50 + pound). Model beroda ini yang paling sering ditemukan di lokasi bangunan, bandar udara, heliports, Serta Dok dan pelabuhan.<br /> <div class="toc" id="toc"> <div id="toctitle"> <h2> Daftar isi</h2> </div> </div> <div class="toc" id="toc"> <ul> <li class="toclevel-1 tocsection-1"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Dry_Chemical_Powder"><span class="tocnumber">1</span> <span class="toctext">Dry Chemical Powder</span></a></li> <li class="toclevel-1 tocsection-2"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Carbon_Dioxide_.28CO2.29"><span class="tocnumber">2</span> <span class="toctext">Carbon Dioxide (CO2)</span></a></li> <li class="toclevel-1 tocsection-3"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Foam_AFFF_.28Aqueous_Film_Forming_Foam.29"><span class="tocnumber">3</span> <span class="toctext">Foam AFFF (Aqueous Film Forming Foam)</span></a></li> <li class="toclevel-1 tocsection-4"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Gas_Pengganti_Hallon_Non_CFC_.28HCFC-141B.29"><span class="tocnumber">4</span> <span class="toctext">Gas Pengganti Hallon Non CFC (HCFC-141B)</span></a></li> <li class="toclevel-1 tocsection-5"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran"><span class="tocnumber">5</span> <span class="toctext">Kelas Kebakaran</span></a></li> <li class="toclevel-1 tocsection-6"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Cara_Menggunakan_Alat_Pemadam_Api"><span class="tocnumber">6</span> <span class="toctext">Cara Menggunakan Alat Pemadam Api</span></a></li> <li class="toclevel-1 tocsection-7"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Lihat_pula"><span class="tocnumber">7</span> <span class="toctext">Lihat pula</span></a></li> <li class="toclevel-1 tocsection-8"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Referensi"><span class="tocnumber">8</span> <span class="toctext">Referensi</span></a></li> <li class="toclevel-1 tocsection-9"><a href="https://id.wikipedia.org/wiki/Pemadam_api#Pranala_luar"><span class="tocnumber">9</span> <span class="toctext">Pranala luar</span></a></li> </ul> </div> <h2> <span class="mw-headline" id="Dry_Chemical_Powder">Dry Chemical Powder</span></h2> Merupakan kombinasi dari fosfat Mono-amonium dan ammonium sulphate. Yang berfungsi mengganggu reaksi kimia yang terjadi pada zona pembakaran, sehingga api padam. Dry Chemical powder juga memiliki titik lebur yang rendah dan pada partikel yang sangat kering serta membengkak untuk membentuk penghalang yang hingga oksigen tidak dapat masuk sehingga dapat menutupi area kebakaran (api), akhirnya api tidak akan menyala dikarenakan pijakannya ditutupi oleh Dry Chemical powder.<br /> <ul> <li>Merupakan media pemadam api serbaguna, aman dan luas pemakaiannya karena dapat mematikan api <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas A</a>, <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">B</a>, dan <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">C</a>.</li> <li>Dapat menahan radiasi panas dengan kabut (serbuk) partikelnya.</li> <li>Tidak menghantarkan listrik (Non Konduktif).</li> <li>Kimia kering tidak beracun (Non Toxic).</li> <li>Tidak berbahaya terhadap tumbuhan, hewan terutama manusia.</li> </ul> Tabung Pemadam Api adalah salah satu produk yang menggunakan bahan dry chemical powder, karena memiliki tingkat <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas kebakaran A</a>, <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">B</a>, dan <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">C</a>.<br /> <h2> <span class="mw-headline" id="Carbon_Dioxide_.28CO2.29">Carbon Dioxide (CO2)</span></h2> <div class="thumb tright"> <div class="thumbinner" style="width: 232px;"> <a class="image" href="https://id.wikipedia.org/wiki/Berkas:FireExtinguisherABC.jpg"><img alt="" class="thumbimage" data-file-height="2017" data-file-width="1036" height="448" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/FireExtinguisherABC.jpg/230px-FireExtinguisherABC.jpg" width="230" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 232px;"> <div class="thumbcaption"> Alat Pemadam api ABC</div> </div> </div> CO₂ adalah Senyawa/bahan kimia yang terbentuk dari 1 atom karbon + 2 atom oksigen, yang dapat dihasilkan baik dari kegiatan alamiah maupun kegiatan manusia.<br /> <ul> <li>Dapat digunakan memadamkan kebakaran <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas B</a> dan <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">C</a> karena merupakan bahan gas, CO₂ tidak merusak, dengan daya guna yang efektif dan bersih.</li> <li>Sangat efisien serta efektif digunakan dalam ruangan seperti kantor, lab dan ruangan lainnya.</li> <li>Carbon Dioxide (CO₂) dapat menyerap panas dan sekaligus mendinginkan.</li> <li>Konstruksi tabung dirancang khusus untuk menahan tekanan tinggi dan dilengkapi dengan selang yang panjang dengan nozzle yang berbentuk corong.</li> <li>Tidak berbahaya terhadap tumbuhan dan hewan.</li> <li>Suhu yang rendah (-50^{<small>o</small>}C) mungkin membekukan urat dan saraf manusia. Maupun manusia yang terjangkit penyakit seperti asma, akan lemas oleh CO₂.</li> </ul> Sangat cocok untuk memadamkan api yang terjadi akibat korsleting listrik, karena bersih dan aman untuk alat listrik khususnya.<br /> <h2> <span class="mw-headline" id="Foam_AFFF_.28Aqueous_Film_Forming_Foam.29">Foam AFFF (Aqueous Film Forming Foam)</span></h2> Foam AFFF (Aqueous Film Forming Foam) adalah berbasis air dan sering mengandung surfaktan berbasis hidrokarbon seperti sulfat sodium alkyl, fluoro surfactant seperti : fluorotelomers, asam perfluorooktanoat (PFOA), asam perfluorooktanasulfonat (PFOS). Mereka memiliki kemampuan untuk menyebar di permukaan cairan berbasis hidrokarbon. "<i>Alcohol resistant aqueous film forming foams</i>" (AR AFFF) adalah busa/foam yang tahan terhadap reaksi dari <a href="https://id.wikipedia.org/wiki/Alkohol" title="Alkohol">alkohol</a>, dapat membentuk lapisan/segmen pelindung ketika dipakai atau disemprotkan.<sup class="reference" id="cite_ref-1"><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_note-1">[1]</a></sup><br /> <ul> <li>Dapat digunakan untuk memadamkan api <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas A</a> namun sangat cocok bila digunakan untuk <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas B</a>.</li> <li>Bersifat Kondukstif (Penghantar Listrik). Tidak dapat dipakai untuk memadamkan api <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas C</a>.</li> <li>Foam bersifat ringan, sangat efektif untuk memadamkan zat cair yang mudah terbakar dengan cara mengisolasi oksigen serta menutupi permukaan zat cair untuk menghindari api yang dapat menjalar (meluas) kembali.</li> <li>Tidak digalakkan terhadap tumbuhan, hewan terutama manusia.</li> <li>Foam adalah bahan yang mengakis supaya menutup permukaan pangkal api, maka letupan dapat kesan dielakkan.</li> </ul> <h2> <span class="mw-headline" id="Gas_Pengganti_Hallon_Non_CFC_.28HCFC-141B.29">Gas Pengganti Hallon Non CFC (HCFC-141B)</span></h2> Gas Pengganti Hallon/ HCFC-141b adalah senyawa kimia yaitu hydrochlorofluorocarbon (HCFC). Merupakan senyawa dari 1,1-dichloro-1-fluoroethane menurut <a class="new" href="https://id.wikipedia.org/w/index.php?title=Chemical_Abstracts&action=edit&redlink=1" title="Chemical Abstracts (halaman belum tersedia)">Chemical Abstracts</a>.<br /> <ul> <li>Merupakan pemadam api yang bersih dan tidak meninggalkan residu.</li> <li>Sangat efektif untuk digunakan pada semua resiko <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">kelas kebakaran A</a>, <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">B</a> dan <a href="https://id.wikipedia.org/wiki/Pemadam_api#Kelas_Kebakaran" title="Pemadam api">C</a>.</li> <li>Tidak menghantarkan listrik (Non Konduktif), sehingga tidak akan menyebabkan kerusakan pada peralatan elektronik dan alat perkantoran modern lainnya.</li> <li>Tidak berbahaya terhadap tumbuhan, hewan terutama manusia.</li> </ul> Gas pengganti hallon ini berkembang mengikuti zaman, sehingga banyak bermunculan produknya. HCFC-141B adalah salah satu gás pengganti hallon tersebut dan lainnya seperti : FM200, Hallotron dan lainnya dengan kualitas menyerupai Hallon.<sup class="reference" id="cite_ref-2"><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_note-2">[2]</a></sup> Hallon dilarang digunakan karena tidak ramah lingkungan merusak lapisan <a href="https://id.wikipedia.org/wiki/Ozon" title="Ozon">ozon</a>. sebabnya yaitu memiliki CFC yang cukup tinggi dan kemungkinan merusaknya sangat besar. Harga dari Tabung Pemadam Api dengan isi Gas pengganti hallon relatif lebih tinggi dari harga Apar dengan isi yang lainnya karena harus ada lapisan khusus. Gas pengganti hallon sering digunakan di kapal, laboratorium, ruang arsip, ruang data center atau server, pesawat dan tempat dengan elektronik yang cukup banyak. dengan gas ini lebih aman dan bersih untuk alat-alat tersebut, sehingga tidak merusak.<sup class="reference" id="cite_ref-3"><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_note-3">[3]</a></sup><sup class="reference" id="cite_ref-4"><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_note-4">[4]</a></sup><br /> <h2> <span class="mw-headline" id="Kelas_Kebakaran">Kelas Kebakaran</span></h2> Berikut ini adalah tabel kelas kebakaran yang sering terjajadi, dan memudahkan anda dalam hal memilih dan membeli tabung apar yang mana yang harus anda beli.<br /> <table class="wikitable"> <tbody> <tr> <th>Kelas Kebakaran</th> <th>Media</th> <th>Dry Chemical Powder</th> <th>Foam AFFF</th> <th>Co2</th> <th>Hcfc-141B</th> </tr> <tr> <td>Kelas Kebakaran A</td> <td>Benda Padat (Kain, Kayu, Kertas)</td> <td>Ya</td> <td>Ya</td> <td>Tidak</td> <td>Ya</td> </tr> <tr> <td>Kelas Kebakaran B</td> <td>Benda Cair (Minyak, Bensin, Solar)</td> <td>Ya</td> <td>Ya</td> <td>Ya</td> <td>Ya</td> </tr> <tr> <td>Kelas Kebakaran C</td> <td>Benda Gas(Elpiji, tinner)</td> <td>Ya</td> <td>Tidak</td> <td>Ya</td> <td>Ya</td> </tr> <tr> <td>Kelas Kebakaran D</td> <td>Logam (magnesium, misiu)</td> <td>Tidak</td> <td>Ya</td> <td>Ya</td> <td>Ya</td> </tr> <tr> <td>Kelas Kebakaran E</td> <td>Electrikal (Dinamo, Motor Listrik)</td> <td>Ya</td> <td>Tidak</td> <td>ya</td> <td>ya</td> </tr> </tbody></table> <h2> <span class="mw-headline" id="Cara_Menggunakan_Alat_Pemadam_Api">Cara Menggunakan Alat Pemadam Api</span></h2> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://id.wikipedia.org/wiki/Berkas:Pemadaman_api.gif"><img alt=" Cara menggunakan alat pemadam api" class="thumbimage" data-file-height="336" data-file-width="336" height="220" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Pemadaman_api.gif/220px-Pemadaman_api.gif" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> Cara menggunakan alat pemadam api</div> </div> </div> Cara Menggunakan Alat Pemadam Api Ringan (Apar) Yaitu :<br /> <ol> <li>Tenang dan jangan panik</li> <li>Pilih apar yang tepat sesuai klasifikasi/jenis kebakaran di tempat yang terdekat</li> <li>Tarik Pin pengaman yang berada pada Valve (mirip kunci yang berada diatas tabung pemadam api)</li> <li>Yakinkan anda berdiri searah ( upstream ) angin tidak melawan arah angin</li> <li>Pegang nozzle pada ujung Hose atau selang dengan tangan dengan kuat.</li> <li>Arahkan Nozzle atau pangkal selang pada titik api (area kebakaran)</li> <li>Pegang gagang dan tekan lever.</li> <li>Lakukan test fungsi. Jika APAR tidak berfungsi baik maka ganti yang lain.</li> <li>Dekati api searah dengan angin, dan berhentilah pada posisi kira-kira 3 meter dari api. (harus mengikuti arah angin supaya tidak terjadi pembalikan arah panas maupun semburan dari sumber api (Sumber kebakaran)).</li> <li>Mulailah tekan lever dan menyemprotkan ke pangkal lidah api ( ingat : pangkal lidah api ) maju perlahan-lahan dan meratakan media pemadam di permukaan sumber api.</li> <li>Segera menghindar bila media habis namun api belum padam.</li> <li>Bila api padam, yakinkan. Kemudian balikkan posisi tabung dan semprotlah ke atas untuk membuang sisa gas pendorong tanpa mengikutkan bubuknya.</li> </ol> <h2> <span class="mw-headline" id="Lihat_pula">Lihat pula</span></h2> <ul> <li><a href="https://id.wikipedia.org/wiki/Pemadam_kebakaran" title="Pemadam kebakaran">Pemadam kebakaran</a></li> <li><a class="new" href="https://id.wikipedia.org/w/index.php?title=Meriam_air&action=edit&redlink=1" title="Meriam air (halaman belum tersedia)">Meriam air</a></li> <li><a class="new" href="https://id.wikipedia.org/w/index.php?title=Pemadam_Otomatis&action=edit&redlink=1" title="Pemadam Otomatis (halaman belum tersedia)">Pemadam Otomatis</a></li> </ul> <h2> <span class="mw-headline" id="Referensi">Referensi</span></h2> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><b><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_ref-1">^</a></b> <span class="reference-text"><span class="PDFlink"><a class="external text" href="http://www.intersales.info/download.php?id=1229" rel="nofollow">Wasserfilmbildendes Schaummittel - Extensid AFFF</a></span><span style="font-size: smaller;"><a href="https://id.wikipedia.org/wiki/Portable_Document_Format" title="Portable Document Format">PDF</a></span> 071027 intersales.info</span></li> <li id="cite_note-2"><b><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_ref-2">^</a></b> <span class="reference-text"><span class="citation web"><a class="external text" href="http://www.fire.tc.faa.gov/systems/handheld/handheld.asp" rel="nofollow">"Handheld Fire Extinguishers"</a><span class="reference-accessdate">. Diakses tanggal <span class="nowrap">2012-04-09</span></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fid.wikipedia.org%3APemadam+api&rft.btitle=Handheld+Fire+Extinguishers&rft.genre=book&rft_id=http%3A%2F%2Fwww.fire.tc.faa.gov%2Fsystems%2Fhandheld%2Fhandheld.asp&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"></span></span></li> <li id="cite_note-3"><b><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_ref-3">^</a></b> <span class="reference-text"><span class="citation web"><a class="external text" href="http://www.fire.tc.faa.gov/pdf/11-31.pdf" rel="nofollow">"Options to the Use of Halons for Aircraft Fire Suppression Systems—2012 Update"</a> <span style="font-size: 85%;">(PDF)</span>. p. 11<span class="reference-accessdate">. Diakses tanggal <span class="nowrap">2012-04-09</span></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fid.wikipedia.org%3APemadam+api&rft.btitle=Options+to+the+Use+of+Halons+for+Aircraft+Fire+Suppression+Systems%E2%80%942012+Update&rft.genre=book&rft_id=http%3A%2F%2Fwww.fire.tc.faa.gov%2Fpdf%2F11-31.pdf&rft.pages=11&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"></span></span></li> <li id="cite_note-4"><b><a href="https://id.wikipedia.org/wiki/Pemadam_api#cite_ref-4">^</a></b> <span class="reference-text"><span class="citation web"><a class="external text" href="http://www.fire.tc.faa.gov/pdf/11-31.pdf" rel="nofollow">"Options to the Use of Halons for Aircraft Fire Suppression Systems—2012 Update"</a> <span style="font-size: 85%;">(PDF)</span>. p. xvii<span class="reference-accessdate">. Diakses tanggal <span class="nowrap">2012-04-09</span></span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fid.wikipedia.org%3APemadam+api&rft.btitle=Options+to+the+Use+of+Halons+for+Aircraft+Fire+Suppression+Systems%E2%80%942012+Update&rft.genre=book&rft_id=http%3A%2F%2Fwww.fire.tc.faa.gov%2Fpdf%2F11-31.pdf&rft.pages=xvii&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"></span></span></li> </ol> </div> <h2> <span class="mw-headline" id="Pranala_luar">Pranala luar</span></h2> <table class="mbox-small plainlinks sistersitebox" style="background-color: #f9f9f9; border: 1px solid #aaa;"> <tbody> <tr> <td class="mbox-image"><img alt="" data-file-height="1376" data-file-width="1024" height="40" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" width="30" /></td> <td class="mbox-text plainlist"><a href="https://id.wikipedia.org/wiki/Wikimedia_Commons" title="Wikimedia Commons">Wikimedia Commons</a> memiliki galeri mengenai: <div style="margin-left: 10px;"> <i><b><a class="extiw" href="https://commons.wikimedia.org/wiki/Category:Fire_extinguisher" title="commons:Category:Fire extinguisher">Pemadam api</a></b></i></div> </td> </tr> </tbody></table> <ul> <li><a class="external text" href="http://www.cofessco.com/images/ABC2010.pdf" rel="nofollow">MSDS for ABC Dry Chemical</a></li> <li><a class="external text" href="http://www.cofessco.com/images/Carbon-Dioxide-.pdf" rel="nofollow">MSDS for Carbon Dioxide</a></li> <li><a class="external text" href="http://www.cofessco.com/images/CH-530.pdf" rel="nofollow">MSDS for Wet Chemical</a></li> <li><a class="external text" href="http://www.cofessco.com/images/AFFF-2.pdf" rel="nofollow">MSDS for AFFF 2% Foam Concentrate</a></li> <li><a class="external text" href="http://www.gatewayfiresupply.com/assets/images/pdf/3pcaffmilspec.pdf" rel="nofollow">MSDS for Military Spec 3% AFFF Foam Concentrate US MIL-F-24385</a></li> <li><a class="external text" href="http://www.gatewayfiresupply.com/assets/images/pdf/2010Halotron.pdf" rel="nofollow">MSDS for Halotron</a></li> <li><a class="external text" href="http://www.gatewayfiresupply.com/assets/images/pdf/2010ClassD.pdf" rel="nofollow">MSDS for Class D Metal Fires</a></li> <li><a class="external text" href="http://www.safelincs.co.uk/templates_safelincs/files/datasheets/1673_MSDS-Foam-P50-2.pdf" rel="nofollow">MSDS for INILAM A Foam Concentrate</a></li> <li><a class="external text" href="http://www.cofessco.com/images/Purple-K.pdf" rel="nofollow">MSDS for Purple-K Powder</a></li> <li><a class="external text" href="http://www.safelincs.co.uk/moreinfo/sdsl.html?popup=true&TB_iframe=true&&height=400&width=700" rel="nofollow">MSDS Gloria AFFF</a></li> <li><a class="external text" href="http://www.safelincs.co.uk/moreinfo/ADEX.html?popup=true&TB_iframe=true&&height=400&width=700" rel="nofollow">MSDS Gloria Adex powder</a></li> <li><a class="external text" href="http://www.safelincs.co.uk/moreinfo/RC50.html?popup=true&TB_iframe=true&&height=400&width=700" rel="nofollow">MSDS Gloria RC50 wet chemical</a></li> <li><a class="external text" href="http://www.safelincs.co.uk/templates_safelincs/files/datasheets/1674_MSDS-Powder-P50.pdf" rel="nofollow">MSDS for Radikal-40 Blue Powder</a></li> <li><a class="external text" href="http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9811&p_text_version=FALSE#1910.157%28c%29%282%29" rel="nofollow">OSHA requirements</a></li> <li><a class="external text" href="http://www.ada.gov/regs2010/2010ADAStandards/2010ADAStandards.pdf" rel="nofollow">Americans with Disabilities Act (ADA) 2010 Standards</a></li> <li><a class="external text" href="http://users.skynet.be/fa256510" rel="nofollow">Online museum about antique fire extinguishers and their history</a></li> </ul> source: https://id.wikipedia.org/wiki/Pemadam_api

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Fire extinguisher

<h1 class="firstHeading" id="firstHeading" lang="en"> <br /></h1> <div class="mw-body-content" id="bodyContent"> <div id="siteSub"> From Wikipedia, the free encyclopedia</div> </div> <div class="mw-content-ltr" dir="ltr" id="mw-content-text" lang="en"> <div class="hatnote"> "Extinguisher" redirects here. Extinguisher may also refer to a <a href="https://en.wikipedia.org/wiki/Candle_snuffer" title="Candle snuffer">candle snuffer</a>.</div> <div class="thumb tright"> <div class="thumbinner" style="width: 172px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:FireExtinguisherABC.jpg"><img alt="" class="thumbimage" data-file-height="2017" data-file-width="1036" height="331" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/FireExtinguisherABC.jpg/170px-FireExtinguisherABC.jpg" width="170" /></a> <div class="thumbcaption"> </div> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 172px;"> <div class="thumbcaption"> A stored-pressure fire extinguisher made by <a href="https://en.wikipedia.org/wiki/Amerex" title="Amerex">Amerex</a></div> </div> </div> A <b>fire extinguisher</b>, or <b>extinguisher</b>, is an <a href="https://en.wikipedia.org/wiki/Active_fire_protection" title="Active fire protection">active fire protection</a> device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the <a href="https://en.wikipedia.org/wiki/Ceiling" title="Ceiling">ceiling</a>, endangers the user (i.e., no escape route, smoke, explosion hazard, etc.), or otherwise requires the expertise of a <a href="https://en.wikipedia.org/wiki/Fire_department" title="Fire department">fire department</a>. Typically, a fire extinguisher consists of a hand-held cylindrical <a href="https://en.wikipedia.org/wiki/Pressure_vessel" title="Pressure vessel">pressure vessel</a> containing an <a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Types_of_extinguishing_agents">agent</a> which can be discharged to extinguish a <a href="https://en.wikipedia.org/wiki/Fire" title="Fire">fire</a>.<br /> In the United States, fire extinguishers in all buildings other than houses are generally required to be serviced and inspected by a fire protection service company at least annually. Some jurisdictions require more frequent service for fire extinguishers. The servicer places a tag on the extinguisher to indicate the type of service performed (annual inspection, recharge, new fire extinguisher).<br /> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire_extinguisher_with_ID_sign,_call_point_and_fire_action_sign.JPG"><img alt="" class="thumbimage" data-file-height="3456" data-file-width="4608" height="165" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Fire_extinguisher_with_ID_sign%2C_call_point_and_fire_action_sign.JPG/220px-Fire_extinguisher_with_ID_sign%2C_call_point_and_fire_action_sign.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A British fire extinguisher with ID sign, call point and fire action sign</div> </div> </div> There are two main types of fire extinguishers: stored-pressure and cartridge-operated. In stored pressure units, the expellant is stored in the same chamber as the <a href="https://en.wikipedia.org/wiki/Firefighting" title="Firefighting">firefighting</a> agent itself. Depending on the agent used, different propellants are used. With dry chemical extinguishers, <a href="https://en.wikipedia.org/wiki/Nitrogen" title="Nitrogen">nitrogen</a> is typically used; water and foam extinguishers typically use air. Stored pressure fire extinguishers are the most common type. Cartridge-operated extinguishers contain the expellant gas in a separate cartridge that is punctured prior to discharge, exposing the propellant to the extinguishing agent. This type is not as common, used primarily in areas such as industrial facilities, where they receive higher-than-average use. They have the advantage of simple and prompt recharge, allowing an operator to discharge the extinguisher, recharge it, and return to the fire in a reasonable amount of time. Unlike stored pressure types, these extinguishers use compressed <a href="https://en.wikipedia.org/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> instead of nitrogen, although nitrogen cartridges are used on low temperature (-60 rated) models. Cartridge operated extinguishers are available in dry chemical and dry powder types in the U.S. and in water, wetting agent, foam, dry chemical (classes ABC and B.C.), and dry powder (class D) types in the rest of the world.<br /> <div class="thumb tright"> <div class="thumbinner" style="width: 172px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Wheeled_fire_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="3264" data-file-width="2448" height="227" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Wheeled_fire_extinguisher.jpg/170px-Wheeled_fire_extinguisher.jpg" width="170" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 172px;"> <div class="thumbcaption"> Wheeled fire extinguisher and a sign inside a parking lot</div> </div> </div> Fire extinguishers are further divided into handheld and cart-mounted (also called wheeled extinguishers). Handheld extinguishers weigh from 0.5 to 14 kilograms (1.1 to 30.9 lb), and are hence, easily portable by hand. Cart-mounted units typically weigh more than 23 kilograms (51 lb). These wheeled models are most commonly found at <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Construction_sites" title="Construction sites">construction sites</a>, <a href="https://en.wikipedia.org/wiki/Airport" title="Airport">airport</a> <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Runways" title="Runways">runways</a>, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Heliports" title="Heliports">heliports</a>, as well as <a href="https://en.wikipedia.org/wiki/Dock_%28maritime%29" title="Dock (maritime)">docks</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Marinas" title="Marinas">marinas</a>.<br /> <div class="toc" id="toc"> <div id="toctitle"> <h2> Contents</h2> </div> </div> <div class="toc" id="toc"> <ul> <li class="toclevel-1 tocsection-1"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#History"><span class="tocnumber">1</span> <span class="toctext">History</span></a></li> <li class="toclevel-1 tocsection-2"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Classification"><span class="tocnumber">2</span> <span class="toctext">Classification</span></a> <ul> <li class="toclevel-2 tocsection-3"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Australia_and_New_Zealand"><span class="tocnumber">2.1</span> <span class="toctext">Australia and New Zealand</span></a></li> <li class="toclevel-2 tocsection-4"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#United_Kingdom"><span class="tocnumber">2.2</span> <span class="toctext">United Kingdom</span></a></li> <li class="toclevel-2 tocsection-5"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#United_States"><span class="tocnumber">2.3</span> <span class="toctext">United States</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-6"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Installation"><span class="tocnumber">3</span> <span class="toctext">Installation</span></a></li> <li class="toclevel-1 tocsection-7"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Types_of_extinguishing_agents"><span class="tocnumber">4</span> <span class="toctext">Types of extinguishing agents</span></a> <ul> <li class="toclevel-2 tocsection-8"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Dry_chemical"><span class="tocnumber">4.1</span> <span class="toctext">Dry chemical</span></a></li> <li class="toclevel-2 tocsection-9"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Foams"><span class="tocnumber">4.2</span> <span class="toctext">Foams</span></a></li> <li class="toclevel-2 tocsection-10"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Water"><span class="tocnumber">4.3</span> <span class="toctext">Water</span></a> <ul> <li class="toclevel-3 tocsection-11"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Wet_chemical_and_water_additives"><span class="tocnumber">4.3.1</span> <span class="toctext">Wet chemical and water additives</span></a></li> </ul> </li> <li class="toclevel-2 tocsection-12"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Clean_agents_and_carbon_dioxide"><span class="tocnumber">4.4</span> <span class="toctext">Clean agents and carbon dioxide</span></a></li> <li class="toclevel-2 tocsection-13"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Class_D"><span class="tocnumber">4.5</span> <span class="toctext">Class D</span></a></li> <li class="toclevel-2 tocsection-14"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Fire_extinguishing_ball"><span class="tocnumber">4.6</span> <span class="toctext">Fire extinguishing ball</span></a></li> <li class="toclevel-2 tocsection-15"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Condensed_aerosol_fire_suppression"><span class="tocnumber">4.7</span> <span class="toctext">Condensed aerosol fire suppression</span></a></li> <li class="toclevel-2 tocsection-16"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Low-frequency_sound"><span class="tocnumber">4.8</span> <span class="toctext">Low-frequency sound</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-17"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Maintenance"><span class="tocnumber">5</span> <span class="toctext">Maintenance</span></a> <ul> <li class="toclevel-2 tocsection-18"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Vandalism_and_extinguisher_protection"><span class="tocnumber">5.1</span> <span class="toctext">Vandalism and extinguisher protection</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-19"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Fire_extinguisher_signs"><span class="tocnumber">6</span> <span class="toctext">Fire extinguisher signs</span></a> <ul> <li class="toclevel-2 tocsection-20"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Placement_of_fire_extinguisher_signs"><span class="tocnumber">6.1</span> <span class="toctext">Placement of fire extinguisher signs</span></a></li> <li class="toclevel-2 tocsection-21"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#Photoluminescent_fire_extinguisher_location_signs"><span class="tocnumber">6.2</span> <span class="toctext">Photoluminescent fire extinguisher location signs</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-22"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#See_also"><span class="tocnumber">7</span> <span class="toctext">See also</span></a></li> <li class="toclevel-1 tocsection-23"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#References"><span class="tocnumber">8</span> <span class="toctext">References</span></a></li> <li class="toclevel-1 tocsection-24"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#External_links"><span class="tocnumber">9</span> <span class="toctext">External links</span></a></li> </ul> </div> <h2> <span class="mw-headline" id="History">History</span></h2> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Blythe_House,_Science_Museum_14_-_cut_fire_extinguishers.JPG"><img alt="" class="thumbimage" data-file-height="2000" data-file-width="3008" height="146" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/Blythe_House%2C_Science_Museum_14_-_cut_fire_extinguishers.JPG/220px-Blythe_House%2C_Science_Museum_14_-_cut_fire_extinguishers.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> Fire extinguishers in a museum storeroom, cut to display their inner workings</div> </div> </div> The first fire extinguisher of which there is any record was patented in England in 1723 by <a href="https://en.wikipedia.org/wiki/Ambrose_Godfrey" title="Ambrose Godfrey">Ambrose Godfrey</a>, a celebrated chemist at that time. It consisted of a cask of fire-extinguishing liquid containing a pewter chamber of gunpowder. This was connected with a system of fuses which were ignited, exploding the gunpowder and scattering the solution. This device was probably used to a limited extent, as Bradley's Weekly Messenger for November 7, 1729, refers to its efficiency in stopping a fire in London.<br /> The modern fire extinguisher was invented by British Captain <a href="https://en.wikipedia.org/wiki/George_William_Manby" title="George William Manby">George William Manby</a> in 1818; it consisted of a copper vessel of 3 <a href="https://en.wikipedia.org/wiki/Gallon" title="Gallon">gallons</a> (13.6 liters) of pearl ash (<a href="https://en.wikipedia.org/wiki/Potassium_carbonate" title="Potassium carbonate">potassium carbonate</a>) solution contained within <a href="https://en.wikipedia.org/wiki/Pneumatics" title="Pneumatics">compressed air</a>.<br /> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Childs_soda-acid.JPG"><img alt="" class="thumbimage" data-file-height="604" data-file-width="453" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Childs_soda-acid.JPG/220px-Childs_soda-acid.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A classic copper building type soda-acid extinguisher</div> </div> </div> The soda-acid extinguisher was first patented in 1866 by Francois Carlier of France, which mixed a solution of water and sodium bicarbonate with <a href="https://en.wikipedia.org/wiki/Tartaric_acid" title="Tartaric acid">tartaric acid</a>, producing the propellant CO₂ gas. A soda-acid extinguisher was patented in the U.S. in 1881 by <a class="new" href="https://en.wikipedia.org/w/index.php?title=Almon_M._Granger&action=edit&redlink=1" title="Almon M. Granger (page does not exist)">Almon M. Granger</a>. His extinguisher used the reaction between <a href="https://en.wikipedia.org/wiki/Sodium_bicarbonate" title="Sodium bicarbonate">sodium bicarbonate</a> solution and <a href="https://en.wikipedia.org/wiki/Sulfuric_acid" title="Sulfuric acid">sulfuric acid</a> to expel pressurized water onto a fire.<sup class="reference" id="cite_ref-1"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-1"><span>[</span>1<span>]</span></a></sup> A vial of concentrated sulfuric acid was suspended in the cylinder. Depending on the type of extinguisher, the vial of acid could be broken in one of two ways. One used a plunger to break the acid vial, while the second released a lead stopple that held the vial closed. Once the acid was mixed with the bicarbonate solution, <a href="https://en.wikipedia.org/wiki/Carbon_dioxide" title="Carbon dioxide">carbon dioxide</a> gas was expelled and thereby pressurized the water. The pressurized water was forced from the canister through a nozzle or short length of hose.<br /> The cartridge-operated extinguisher was invented by <a href="https://en.wikipedia.org/wiki/Chubb_Fire#Read_and_Campbell_Limited" title="Chubb Fire">Read & Campbell</a> of England in 1881, which used water or water-based solutions. They later invented a <a href="https://en.wikipedia.org/wiki/Carbon_tetrachloride" title="Carbon tetrachloride">carbon tetrachloride</a> model called the "Petrolex" which was marketed toward automotive use.<sup class="reference" id="cite_ref-urlStaffordshire_Past_Track_-Petrolex_half_gallon_fire_extinguisher_2-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-urlStaffordshire_Past_Track_-Petrolex_half_gallon_fire_extinguisher-2"><span>[</span>2<span>]</span></a></sup><br /> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Snohomish_-_Blackman_House_Museum_-_Comet_fire_extinguisher_02A.jpg"><img alt="" class="thumbimage" data-file-height="1738" data-file-width="1930" height="198" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Snohomish_-_Blackman_House_Museum_-_Comet_fire_extinguisher_02A.jpg/220px-Snohomish_-_Blackman_House_Museum_-_Comet_fire_extinguisher_02A.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A glass grenade-style extinguisher, to be thrown into a fire.</div> </div> </div> The chemical foam extinguisher was invented in 1904 by <a href="https://en.wikipedia.org/wiki/Aleksandr_Loran" title="Aleksandr Loran">Aleksandr Loran</a> in Russia, based on his previous invention of <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fire_fighting_foam" title="Fire fighting foam">fire fighting foam</a>. Loran first used it to extinguish a pan of burning naphtha.<sup class="reference" id="cite_ref-3"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-3"><span>[</span>3<span>]</span></a></sup> It worked and looked similar to the soda-acid type, but the inner parts were slightly different. The main tank contained a solution of sodium bicarbonate in water, whilst the inner container (somewhat larger than the equivalent in a soda-acid unit) contained a solution of <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Aluminium_sulphate" title="Aluminium sulphate">aluminium sulphate</a>. When the solutions were mixed, usually by inverting the unit, the two liquids reacted to create a frothy foam, and carbon dioxide gas. The gas expelled the foam in the form of a jet. Although liquorice-root extracts and similar compounds were used as additives (stabilizing the foam by reinforcing the bubble-walls), there was no "foam compound" in these units. The foam was a combination of the products of the chemical reactions: <a href="https://en.wikipedia.org/wiki/Sodium" title="Sodium">sodium</a> and <a href="https://en.wikipedia.org/wiki/Aluminium" title="Aluminium">aluminium</a> salt-gels inflated by the carbon dioxide. Because of this, the foam was discharged directly from the unit, with no need for an aspirating branchpipe (as in newer foam-compound types).<br /> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Carbon_tetrachloride_1930s_fire_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="1000" data-file-width="750" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/db/Carbon_tetrachloride_1930s_fire_extinguisher.jpg/220px-Carbon_tetrachloride_1930s_fire_extinguisher.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A <a href="https://en.wikipedia.org/wiki/The_Pyrene_Company_Limited" title="The Pyrene Company Limited">Pyrene</a>, brass, carbon tetrachloride extinguisher</div> </div> </div> In 1910, The <a href="https://en.wikipedia.org/wiki/The_Pyrene_Company_Limited" title="The Pyrene Company Limited">Pyrene Manufacturing Company</a> of Delaware filed a patent for using <a href="https://en.wikipedia.org/wiki/Carbon_tetrachloride" title="Carbon tetrachloride">carbon tetrachloride</a> (CTC, or CCl₄) to extinguish fires.<sup class="reference" id="cite_ref-4"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-4"><span>[</span>4<span>]</span></a></sup> The liquid vaporized and extinguished the flames by inhibiting the chemical chain reaction of the combustion process (it was an early 20th-century presupposition that the fire suppression ability of carbon tetrachloride relied on oxygen removal). In 1911, they patented a small, portable extinguisher that used the chemical.<sup class="reference" id="cite_ref-5"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-5"><span>[</span>5<span>]</span></a></sup> This consisted of a <a href="https://en.wikipedia.org/wiki/Brass" title="Brass">brass</a> or <a href="https://en.wikipedia.org/wiki/Chrome_plating" title="Chrome plating">chrome</a> container with an integrated handpump, which was used to expel a jet of liquid towards the fire. It was usually of 1 imperial quart (1.1 l) or 1 imperial pint (0.57 l) capacity but was also available in up to 2 imperial gallons (9.1 l) size. As the container was unpressurized, it could be refilled after use through a filling plug with a fresh supply of CTC.<sup class="reference" id="cite_ref-6"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-6"><span>[</span>6<span>]</span></a></sup><br /> Another type of carbon tetrachloride extinguisher was the <b>fire grenade</b>. This consisted of a glass sphere filled with CTC, that was intended to be hurled at the base of a fire (early ones used salt-water, but CTC was more effective). Carbon tetrachloride was suitable for liquid and electrical fires and the extinguishers were fitted to motor vehicles. Carbon tetrachloride extinguishers were withdrawn in the 1950s because of the chemical's toxicity - exposure to high concentrations damages the nervous system and internal organs. Additionally, when used on a fire, the heat can convert CTC to <a href="https://en.wikipedia.org/wiki/Phosgene" title="Phosgene">phosgene</a> gas,<sup class="reference" id="cite_ref-7"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-7"><span>[</span>7<span>]</span></a></sup> formerly used as a chemical weapon.<br /> In the 1940s, Germany invented the liquid <a href="https://en.wikipedia.org/wiki/Bromochloromethane" title="Bromochloromethane">chlorobromomethane</a> (CBM) for use in aircraft. It was more effective and slightly less toxic than carbon tetrachloride and was used until 1969. <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Methyl_bromide" title="Methyl bromide">Methyl bromide</a> was discovered as an extinguishing agent in the 1920s and was used extensively in Europe. It is a low-pressure gas that works by inhibiting the chain reaction of the fire and is the most toxic of the vaporizing liquids, used until the 1960s. The vapor and combustion by-products of all vaporizing liquids were highly toxic, and could cause death in confined spaces.<br /> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Foam_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="604" data-file-width="453" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Foam_extinguisher.jpg/220px-Foam_extinguisher.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A chemical foam extinguisher with contents.</div> </div> </div> The carbon dioxide (CO₂) extinguisher was invented (at least in the US) by the Walter Kidde Company in 1924 in response to Bell Telephone's request for an electrically non-conductive chemical for extinguishing the previously difficult-to-extinguish fires in telephone switchboards. It consisted of a tall metal cylinder containing 7.5 pounds (3.4 kg) of CO₂ with a wheel valve and a woven brass, cotton covered hose, with a composite funnel-like horn as a nozzle. CO₂ is still popular today as it is an ozone-friendly clean agent and is used heavily in film and television production to extinguish burning <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Stuntmen" title="Stuntmen">stuntmen</a>.<sup class="reference" id="cite_ref-urlSecrets_of_Hollywood_special_effects_-_Google_Books_8-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-urlSecrets_of_Hollywood_special_effects_-_Google_Books-8"><span>[</span>8<span>]</span></a></sup> Carbon dioxide extinguishes fire mainly by displacing oxygen. It was once thought that it worked by cooling, although this effect on most fires is negligible. This characteristic is well known and has led to the widespread misuse of carbon dioxide extinguishers to rapidly cool beverages, especially <a href="https://en.wikipedia.org/wiki/Beer" title="Beer">beer</a>.<br /> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:DuGas_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="604" data-file-width="453" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/DuGas_extinguisher.jpg/220px-DuGas_extinguisher.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tleft"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> An early dry chemical extinguisher, the first ones had copper cylinders, this one is steel.</div> </div> </div> In 1928, DuGas (later bought by <a href="https://en.wikipedia.org/wiki/Ansul" title="Ansul">ANSUL</a>) came out with a cartridge-operated dry chemical extinguisher, which used sodium bicarbonate specially treated with chemicals to render it free-flowing and moisture-resistant. It consisted of a copper cylinder with an internal CO₂cartridge. The operator turned a wheel valve on top to puncture the cartridge and squeezed a lever on the valve at the end of the hose to discharge the chemical. This was the first agent available for large-scale three-dimensional liquid and pressurized gas fires, and was but remained largely a specialty type until the 1950s, when small dry chemical units were marketed for home use. ABC dry chemical came over from Europe in the 1950s, with Super-K being invented in the early 60s and Purple-K being developed by the US Navy in the late 1960s.<br /> In the 1970s, Halon 1211 came over to the United States from Europe, where it had been used since the late 40s or early 50s. Halon 1301 had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today, but is falling out of favor for many uses due to its environmental impact. Europe, and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia.<sup class="reference" id="cite_ref-9"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-9"><span>[</span>9<span>]</span></a></sup><sup class="reference" id="cite_ref-10"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-10"><span>[</span>10<span>]</span></a></sup><br /> <h2> <span class="mw-headline" id="Classification">Classification</span></h2> Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is useful in fighting fires with a particular group of fuel.<br /> <h3> <span class="mw-headline" id="Australia_and_New_Zealand">Australia and New Zealand</span></h3> Specifications for fire extinguishers are set out in the standard AS/NZS 1841, the most recent version being released in 2007. All fire extinguishers must be painted signal red. Except for water extinguishers, each extinguisher has a coloured band near the top, covering at least 10% of the extinguisher's body length, specifying its contents.<br /> <table class="wikitable"> <tbody> <tr> <th rowspan="2">Type</th> <th colspan="2" rowspan="2">Band colour</th> <th colspan="6"><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fire_classes" title="Fire classes">Fire classes</a> (brackets denote sometimes applicable)</th> </tr> <tr> <th>A</th> <th>B</th> <th>C</th> <th>D</th> <th>E</th> <th>F</th> </tr> <tr> <td>Water</td> <td style="background: red;"><br /></td> <td>Signal red</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Wet chemical</td> <td style="background: #CDB187;"><br /></td> <td>Oatmeal</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">F</td> </tr> <tr> <td>Foam</td> <td style="background: blue;"><br /></td> <td>Ultramarine blue</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Dry powder</td> <td style="background: #fff;"><br /></td> <td>White</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">C</td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> <tr> <td>Dry powder (metal fires)</td> <td style="background: lime;"><br /></td> <td>Lime green</td> <td><br /></td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">D</td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Carbon dioxide</td> <td style="background: #000;"><br /></td> <td>Black</td> <td class="table-partial" style="background: #FFB; text-align: center; vertical-align: middle;">(A)</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> <tr> <td>Vaporizing liquid (non-halon clean agents)</td> <td style="background: yellow;"><br /></td> <td>Golden yellow</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">C</td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> <tr> <td><a href="https://en.wikipedia.org/wiki/Halomethane#Fire_extinguishing" title="Halomethane">Halon</a></td> <td class="table-na" colspan="2" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">No longer produced</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> </tbody></table> In Australia, yellow (Halon) fire extinguishers are illegal to own or use on a fire, unless an essential use exemption has been granted, this is due to the ozone-depleting nature of halon.<sup class="reference" id="cite_ref-Aus_Halon_11-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-Aus_Halon-11"><span>[</span>11<span>]</span></a></sup><br /> <h3> <span class="mw-headline" id="United_Kingdom">United Kingdom</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire-extinuisher-uk.jpg"><img alt="" class="thumbimage" data-file-height="1600" data-file-width="1200" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Fire-extinuisher-uk.jpg/220px-Fire-extinuisher-uk.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> Typical United Kingdom CO₂ and water fire extinguishers</div> </div> </div> According to the standard <a href="https://en.wikipedia.org/wiki/EN_3" title="EN 3">BS EN 3</a>, fire extinguishers in the United Kingdom as all throughout Europe are red <a class="mw-redirect" href="https://en.wikipedia.org/wiki/RAL_3000" title="RAL 3000">RAL 3000</a>, and a band or circle of a second color covering between 5–10% of the surface area of the extinguisher indicates the contents. Before 1997, the entire body of the fire extinguisher was <a href="https://en.wikipedia.org/wiki/Color_code" title="Color code">color coded</a> according to the type of extinguishing agent.<br /> The UK recognises six <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fire_classes" title="Fire classes">fire classes</a>:<sup class="reference" id="cite_ref-12"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-12"><span>[</span>12<span>]</span></a></sup><br /> <ul> <li>Class A fires involve organic solids such as paper and wood.</li> <li>Class B fires involve flammable or combustible liquids, including petrol, grease, and oil.</li> <li>Class C fires involve flammable gases.</li> <li>Class D fires involve combustible metals.</li> <li>Class E fires involve electrical equipment/appliances.</li> <li>Class F fires involve cooking fat and oil.</li> </ul> Class E has been discontinued, but covered fires involving electrical appliances. This is no longer used on the basis that, when the power supply is turned off, an electrical fire can fall into any of the remaining five categories.<br /> <table class="wikitable"> <tbody> <tr> <th rowspan="2">Type</th> <th colspan="2" rowspan="2">Old code</th> <th rowspan="2">BS EN 3 colour code</th> <th colspan="6"><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fire_classes" title="Fire classes">Fire classes</a><br /> (brackets denote sometimes applicable)<sup class="reference" id="cite_ref-UK_Halon_13-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-UK_Halon-13"><span>[</span>13<span>]</span></a></sup></th> </tr> <tr> <th>A</th> <th>B</th> <th>C</th> <th>D</th> <th>E</th> <th>F</th> </tr> <tr> <td>Water</td> <td>Signal red</td> <td style="background: #d92a0f;"><br /></td> <td>Signal red</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Foam</td> <td>Cream</td> <td style="background: #ff9;"><br /></td> <td>Red with a cream panel above the operating instructions</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Dry powder</td> <td>French blue</td> <td style="background: #1854ac;"><br /></td> <td>Red with a blue panel above the operating instructions</td> <td class="table-partial" style="background: #FFB; text-align: center; vertical-align: middle;">(A)</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">C</td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> <tr> <td>Carbon dioxide, CO₂</td> <td>Black</td> <td style="background: #000;"><br /></td> <td>Red with a black panel above the operating instructions</td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> <tr> <td>Wet chemical</td> <td class="table-na" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">N/A</td> <td style="background: #ffeb01;"><br /></td> <td>Red with a canary yellow panel above the operating instructions</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-partial" style="background: #FFB; text-align: center; vertical-align: middle;">(B)</td> <td><br /></td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">F</td> </tr> <tr> <td>Class D powder</td> <td>French blue</td> <td style="background: #1854ac;"><br /></td> <td>Red with a blue panel above the operating instructions</td> <td><br /></td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">D</td> <td><br /></td> <td><br /></td> </tr> <tr> <td>Halon 1211/BCF</td> <td>Emerald green</td> <td style="background: #3c8861;"><br /></td> <td class="table-na" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">No longer in general use</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">A</td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">B</td> <td><br /></td> <td><br /></td> <td class="table-yes" style="background: #9F9; text-align: center; vertical-align: middle;">E</td> <td><br /></td> </tr> </tbody></table> In the UK the use of <a href="https://en.wikipedia.org/wiki/Bromotrifluoromethane" title="Bromotrifluoromethane">Halon gas</a> is now prohibited except under certain situations such as on aircraft and in the military and police.<sup class="reference" id="cite_ref-envirowise_14-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-envirowise-14"><span>[</span>14<span>]</span></a></sup><br /> Fire extinguishing performance per fire class is displayed using numbers and letters such as 13A, 55B.<br /> EN3 does not recognise a separate electrical class - however there is an additional feature requiring special testing (35 <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Kilovolt" title="Kilovolt">kV</a> <a href="https://en.wikipedia.org/wiki/Dielectric_strength" title="Dielectric strength">dielectric</a> test per EN 3-7:2004). A powder or CO₂ extinguisher will bear an electrical pictogramme as standard signifying that it can be used on live electrical fires (given the symbol E in the table). If a water-based extinguisher has passed the 35 kV test it will also bear the same electrical pictogramme - however, any water-based extinguisher is only recommended for inadvertent use on electrical fires.<br /> <h3> <span class="mw-headline" id="United_States">United States</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Portable_fire_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="2463" data-file-width="1136" height="477" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Portable_fire_extinguisher.jpg/220px-Portable_fire_extinguisher.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> An ABC powder (monoammonium phosphate) fire extinguisher.</div> </div> </div> There is no official standard in the United States for the color of fire extinguishers, though they are typically red, except for class D extinguishers which are usually yellow, water and Class K wet chemical extinguishers which are usually silver, and water mist extinguishers which are usually white. Extinguishers are marked with pictograms depicting the types of fires that the extinguisher is approved to fight. In the past, extinguishers were marked with colored geometric symbols, and some extinguishers still use both symbols. The types of fires and additional standards are described in <a href="https://en.wikipedia.org/wiki/National_Fire_Protection_Association" title="National Fire Protection Association">NFPA</a> 10: Standard for Portable Fire Extinguishers, 2010 edition.<br /> <table class="wikitable"> <tbody> <tr> <th>Fire class</th> <th colspan="2">Geometric symbol</th> <th>Pictogram</th> <th><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fire_classes" title="Fire classes">Intended use</a></th> <th>Mnemonic</th> </tr> <tr> <td style="text-align: center;">A</td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_A_fire_triangle.svg"><img alt="Green triangle, with letter A" data-file-height="268" data-file-width="309" height="69" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/95/Class_A_fire_triangle.svg/80px-Class_A_fire_triangle.svg.png" width="80" /></a></td> <td style="background: #0a0;"><br /></td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Fire_type_A.svg"><img alt="Fire type A.svg" data-file-height="60" data-file-width="60" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Fire_type_A.svg/80px-Fire_type_A.svg.png" width="80" /></a></td> <td>Ordinary solid combustibles</td> <td>A for "Ash"</td> </tr> <tr> <td style="text-align: center;">B</td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_B_fire_square.svg"><img alt="Red square with letter B" data-file-height="244" data-file-width="244" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Class_B_fire_square.svg/80px-Class_B_fire_square.svg.png" width="80" /></a></td> <td style="background: #f00;"><br /></td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Fire_type_B.svg"><img alt="Fire type B.svg" data-file-height="60" data-file-width="60" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Fire_type_B.svg/80px-Fire_type_B.svg.png" width="80" /></a></td> <td>Flammable liquids and gases</td> <td>B for "Barrel"</td> </tr> <tr> <td style="text-align: center;">C</td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_C_fire_circle.svg"><img alt="Blue circle with letter C" data-file-height="219" data-file-width="219" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Class_C_fire_circle.svg/80px-Class_C_fire_circle.svg.png" width="80" /></a></td> <td style="background: #00f;"><br /></td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_C_fire_icon.svg"><img alt="Class C fire icon.svg" data-file-height="60" data-file-width="60" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Class_C_fire_icon.svg/80px-Class_C_fire_icon.svg.png" width="80" /></a></td> <td>Energized electrical equipment</td> <td>C for "Current"</td> </tr> <tr> <td style="text-align: center;">D</td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_D_fire_icon.svg"><img alt="Yellow 5-pointed star with letter D" data-file-height="240" data-file-width="240" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Class_D_fire_icon.svg/80px-Class_D_fire_icon.svg.png" width="80" /></a></td> <td style="background: #ff0;"><br /></td> <td class="table-na" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">None</td> <td>Combustible metals</td> <td>D for "Dynamite"</td> </tr> <tr> <td style="text-align: center;">K</td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_K_fire_hexagon.svg"><img alt="Black hexagon with letter K" data-file-height="247" data-file-width="285" height="69" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/Class_K_fire_hexagon.svg/80px-Class_K_fire_hexagon.svg.png" width="80" /></a></td> <td style="background: #000;"><br /></td> <td><a class="image" href="https://en.wikipedia.org/wiki/File:Class_K_fire_icon.svg"><img alt="Class K fire icon.svg" data-file-height="60" data-file-width="60" height="80" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Class_K_fire_icon.svg/80px-Class_K_fire_icon.svg.png" width="80" /></a></td> <td>Oils and fats</td> <td>K for "Kitchen"</td> </tr> </tbody></table> Fire extinguishing capacity is rated in accordance with ANSI/UL 711: Rating and Fire Testing of Fire Extinguishers. The ratings are described using numbers preceding the class letter, such as 1-A:10-B:C. The number preceding the A multiplied by 1.25 gives the equivalent extinguishing capability in gallons of water. The number preceding the B indicates the size of fire in square feet that an ordinary user should be able to extinguish. There is no additional rating for class C, as it only indicates that the extinguishing agent will not conduct electricity, and an extinguisher will never have a rating of just C.<br /> <ul> <li>For additional US UL rating information see <a href="https://en.wikipedia.org/wiki/Fast_Flow_Extinguishers" title="Fast Flow Extinguishers">Fast Flow Extinguishers</a></li> </ul> <table class="wikitable"> <caption>Comparison of fire classes</caption> <tbody> <tr> <th>American</th> <th>European</th> <th>UK</th> <th>Australian/Asian</th> <th>Fuel/heat source</th> </tr> <tr> <td>Class A</td> <td>Class A</td> <td>Class A</td> <td>Class A</td> <td>Ordinary combustibles</td> </tr> <tr> <td rowspan="2">Class B</td> <td>Class B</td> <td>Class B</td> <td>Class B</td> <td>Flammable liquids</td> </tr> <tr> <td>Class C</td> <td>Class C</td> <td>Class C</td> <td>Flammable gases</td> </tr> <tr> <td>Class C</td> <td class="table-na" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">Unclassified</td> <td class="table-na" style="background: #ececec; color: #2c2c2c; font-size: smaller; text-align: center; vertical-align: middle;">Unclassified</td> <td>Class E</td> <td>Electrical equipment</td> </tr> <tr> <td>Class D</td> <td>Class D</td> <td>Class D</td> <td>Class D</td> <td>Combustible metals</td> </tr> <tr> <td>Class K</td> <td>Class F</td> <td>Class F</td> <td>Class F</td> <td>Cooking oil or fat</td> </tr> </tbody></table> <h2> <span class="mw-headline" id="Installation">Installation</span></h2> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire_extinguisher_in_car.jpg"><img alt="" class="thumbimage" data-file-height="533" data-file-width="800" height="147" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Fire_extinguisher_in_car.jpg/220px-Fire_extinguisher_in_car.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A fire extinguisher fitted to the passenger seat of a car</div> </div> </div> Fire extinguishers are typically fitted in <a href="https://en.wikipedia.org/wiki/Building" title="Building">buildings</a> at an easily accessible location, such as against a <a href="https://en.wikipedia.org/wiki/Wall" title="Wall">wall</a> in a high-traffic area. They are also often fitted to <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Motor_vehicles" title="Motor vehicles">motor vehicles</a>, <a href="https://en.wikipedia.org/wiki/Watercraft" title="Watercraft">watercraft</a>, and <a href="https://en.wikipedia.org/wiki/Aircraft" title="Aircraft">aircraft</a> - this is required by law in many jurisdictions, for identified classes of vehicles. Under <a href="https://en.wikipedia.org/wiki/National_Fire_Protection_Association" title="National Fire Protection Association">NFPA</a> 10 all commercial vehicles must carry at least one fire extinguisher, with size/UL rating depending on type of vehicle and cargo (i.e., fuel tankers typically must have a 20 lb (9.1 kg), while most others can carry a 5 lb (2.3 kg)). The revised NFPA 10 created criteria on the placement of "<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fast_flow_extinguishers" title="Fast flow extinguishers">fast flow extinguishers</a>" in locations such as those storing and transporting pressurized flammable liquids and pressurized flammable gas or areas with possibility of three dimensional class B hazards are required to have "fast flow extinguishers" as required by NFPA 5.5.1.1. Varying classes of competition vehicles require fire extinguishing systems, the simplest requirements being a 1A:10BC hand-held portable extinguisher mounted to the interior of the vehicle.<br /> The height limit for installation, as determined by the National Fire Protection Association (NFPA), is 60 in (1.5 m) for fire extinguishers weighing less than 40 lb (18 kg). However, compliance with the Americans with Disabilities Act (ADA) also needs to be followed within the United States. The ADA height limit of the fire extinguisher, as measured at the handle, is 48 in (1.2 m). Fire extinguisher installations are also limited to protruding no more than 4 inches into the adjacent path of travel. The ADA rule states that any object adjacent to a path of travel cannot project more than 4 in (10 cm) if the object's bottom leading edge is higher than 27 in (0.69 m). The 4-inch protrusion rule was designed to protect people with low-vision and those who are blind. The height limit rule of 48 in is primarily related to access by people with wheelchairs, but it is also related to other disabilities as well. Prior to 2012, the height limit was 54 in (1.4 m) for side-reach by wheel chair accessible installations. Installations made prior to 2012 at the 54-inch height are not required to be changed.<br /> <h2> <span class="mw-headline" id="Types_of_extinguishing_agents">Types of extinguishing agents</span></h2> <h3> <span class="mw-headline" id="Dry_chemical">Dry chemical</span></h3> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px;"> <div style="width: 155px;"> <div class="thumb" style="width: 150px;"> <div style="margin: 15px auto;"> <a class="image" href="https://en.wikipedia.org/wiki/File:KiddeBCchem.jpg"><img alt="" data-file-height="3072" data-file-width="2304" height="120" src="https://upload.wikimedia.org/wikipedia/en/thumb/a/a0/KiddeBCchem.jpg/90px-KiddeBCchem.jpg" width="90" /></a></div> </div> <div class="gallerytext"> A small, disposable sodium bicarbonate dry chemical unit intended for home kitchen use.<br /> </div> </div> </li> <li class="gallerybox" style="width: 155px;"> <div style="width: 155px;"> <div class="thumb" style="width: 150px;"> <div style="margin: 15px auto;"> <a class="image" href="https://en.wikipedia.org/wiki/File:KiddeABCchem.jpg"><img alt="" data-file-height="3072" data-file-width="2304" height="120" src="https://upload.wikimedia.org/wikipedia/en/thumb/a/ab/KiddeABCchem.jpg/90px-KiddeABCchem.jpg" width="90" /></a></div> </div> <div class="gallerytext"> A typical dry chemical extinguisher containing 5 lb (2.3 kg). of ammonium polyphosphate dry chemical.<br /> </div> </div> </li> <li class="gallerybox" style="width: 155px;"> <div style="width: 155px;"> <div class="thumb" style="width: 150px;"> <div style="margin: 15px auto;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire_Extinguisher_PKP_Purple_K.jpg"><img alt="" data-file-height="2657" data-file-width="1129" height="120" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/Fire_Extinguisher_PKP_Purple_K.jpg/51px-Fire_Extinguisher_PKP_Purple_K.jpg" width="51" /></a></div> </div> <div class="gallerytext"> A 10 lb (4.5 kg) stored pressure purple-K fire extinguisher<br /> </div> </div> </li> <li class="gallerybox" style="width: 155px;"> <div style="width: 155px;"> <div class="thumb" style="width: 150px;"> <div style="margin: 15px auto;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Potassium_bicarbonate.jpg"><img alt="" data-file-height="318" data-file-width="200" height="120" src="https://upload.wikimedia.org/wikipedia/en/thumb/b/b1/Potassium_bicarbonate.jpg/75px-Potassium_bicarbonate.jpg" width="75" /></a></div> </div> <div class="gallerytext"> A 20 lb (9.1 kg) US Navy cartridge-operated purple-K dry chemical (potassium bicarbonate) extinguisher.<br /> </div> </div> </li> <li class="gallerybox" style="width: 155px;"> <div style="width: 155px;"> <div class="thumb" style="width: 150px;"> <div style="margin: 15px auto;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Super-K_Dry_Chemical_extinguishers.jpg"><img alt="" data-file-height="604" data-file-width="453" height="120" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Super-K_Dry_Chemical_extinguishers.jpg/90px-Super-K_Dry_Chemical_extinguishers.jpg" width="90" /></a></div> </div> <div class="gallerytext"> Two Super-K (potassium chloride) extinguishers.<br /> </div> </div> </li> </ul> This is a powder based agent that extinguishes by separating the four parts of the <a href="https://en.wikipedia.org/wiki/Fire_triangle" title="Fire triangle">fire tetrahedron</a>. It prevents the chemical reactions involving heat, fuel, and oxygen and halts the production of fire sustaining "free-radicals", thus extinguishing the fire.<br /> <ul> <li><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Monoammonium_phosphate" title="Monoammonium phosphate">Monoammonium phosphate</a>, also known as <i>tri-class</i>, <i>multipurpose</i>, or <i>ABC</i> dry chemical, used on class A, B, and C fires. It receives its class A rating from the agent's ability to melt and flow at 177 °C (351 °F) to smother the fire. More corrosive than other dry chemical agents. Pale yellow in color.</li> <li><a href="https://en.wikipedia.org/wiki/Sodium_bicarbonate" title="Sodium bicarbonate">Sodium bicarbonate</a>, <i>regular</i> or <i>ordinary</i> used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire. That is, the gas drives oxygen away from the fire, thus stopping the chemical reaction. This agent is not generally effective on class A fires because the agent is expended and the cloud of gas dissipates quickly, and if the fuel is still sufficiently hot, the fire starts up again. While liquid and gas fires do not usually store much heat in their fuel source, solid fires do. Sodium bicarbonate was very common in commercial kitchens before the advent of wet chemical agents, but now is falling out of favor, as it is much less effective than wet chemical agents for class K fires, less effective than <a href="https://en.wikipedia.org/wiki/Purple-K" title="Purple-K">Purple-K</a> for class B fires, and is ineffective on class A fires. White or blue in color.</li> <li><a href="https://en.wikipedia.org/wiki/Potassium_bicarbonate" title="Potassium bicarbonate">Potassium bicarbonate</a> (principal constituent of <a href="https://en.wikipedia.org/wiki/Purple-K" title="Purple-K">Purple-K</a>), used on class B and C fires. About two times as effective on class B fires as sodium bicarbonate, it is the preferred dry chemical agent of the oil and gas industry. The only dry chemical agent certified for use in <a class="mw-redirect" href="https://en.wikipedia.org/wiki/ARFF" title="ARFF">ARFF</a> by the NFPA. Colored violet to distinguish it.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=Potassium_bicarbonate_%26_Urea_Complex&action=edit&redlink=1" title="Potassium bicarbonate & Urea Complex (page does not exist)">Potassium bicarbonate & Urea Complex</a> (AKA Monnex), used on class B and C fires. More effective than all other powders due to its ability to decrepitate (where the powder breaks up into smaller particles) in the flame zone creating a larger surface area for free radical inhibition. Grey in color.</li> <li><a href="https://en.wikipedia.org/wiki/Potassium_chloride" title="Potassium chloride">Potassium chloride</a>, or Super-K, dry chemical was developed in an effort to create a high efficiency, protein-foam compatible dry chemical. Developed in the 60s, prior to Purple-K, it was never as popular as other agents since, being a salt, it was quite corrosive. For B and C fires, white in color.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=Foam-compatible&action=edit&redlink=1" title="Foam-compatible (page does not exist)">Foam-compatible</a>, which is a sodium bicarbonate (BC) based dry chemical, was developed for use with protein foams for fighting class B fires. Most dry chemicals contain metal stearates to waterproof them, but these will tend to destroy the foam blanket created by protein (animal) based foams. Foam compatible type uses silicone as a waterproofing agent, which does not harm foam. Effectiveness is identical to regular dry chemical, and it is light green in color (some <a href="https://en.wikipedia.org/wiki/Ansul" title="Ansul">ANSUL</a> brand formulations are blue). This agent is generally no longer used since most modern dry chemicals are considered compatible with synthetic foams such as AFFF.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=MET-L-KYL_/_PYROKYL&action=edit&redlink=1" title="MET-L-KYL / PYROKYL (page does not exist)">MET-L-KYL / PYROKYL</a> is a specialty variation of sodium bicarbonate for fighting pyrophoric (ignites on contact with air) liquid fires. In addition to sodium bicarbonate, it also contains silica gel particles. The sodium bicarbonate interrupts the chain reaction of the fuel and the silica soaks up any unburned fuel, preventing contact with air. It is effective on other class B fuels as well. Blue/red in color.</li> </ul> <h3> <span class="mw-headline" id="Foams">Foams</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:USCG_AFFF.JPG"><img alt="" class="thumbimage" data-file-height="604" data-file-width="453" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/USCG_AFFF.JPG/220px-USCG_AFFF.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A 2.5 US gal (9.5 l) AFFF foam fire extinguisher</div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:General_water.jpg"><img alt="" class="thumbimage" data-file-height="640" data-file-width="480" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/54/General_water.jpg/220px-General_water.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> An American water extinguisher</div> </div> </div> Applied to fuel fires as either an aspirated (mixed and expanded with air in a branch pipe) or nonaspirated form to form a frothy blanket or seal over the fuel, preventing oxygen reaching it. Unlike powder, foam can be used to progressively extinguish fires without flashback.<br /> <ul> <li>Aqueous film-forming foam (<a class="mw-redirect" href="https://en.wikipedia.org/wiki/AFFF" title="AFFF">AFFF</a>), used on A and B fires and for vapor suppression. The most common type in portable foam extinguishers. It contains fluoro-tensides<sup class="reference" id="cite_ref-15"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-15"><span>[</span>15<span>]</span></a></sup> which can be accumulated in the human body. The long-term effects of this on the human body and environment are unclear at this time.</li> <li>Alcohol-resistant aqueous film-forming foams (<a class="mw-redirect" href="https://en.wikipedia.org/wiki/AR-AFFF" title="AR-AFFF">AR-AFFF</a>), used on fuel fires containing alcohol. Forms a membrane between the fuel and the foam preventing the alcohol from breaking down the foam blanket.</li> <li>Film-forming fluoroprotein (<a class="mw-redirect" href="https://en.wikipedia.org/wiki/FFFP" title="FFFP">FFFP</a>) contains naturally occurring proteins from animal by-products and synthetic film-forming agents to create a foam blanket that is more heat resistant than the strictly synthetic AFFF foams. FFFP works well on alcohol-based liquids and is used widely in motorsports.</li> <li><a href="https://en.wikipedia.org/wiki/Compressed_air_foam_system" title="Compressed air foam system">Compressed air foam system</a> (CAFS): Any APW style extinguisher that is charged with a foam solution and pressurized with compressed air. Generally used to extend a water supply in wildland operations. Used on class A fires and with very dry foam on class B for vapor suppression.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=Arctic_Fire&action=edit&redlink=1" title="Arctic Fire (page does not exist)">Arctic Fire</a> is a liquid fire extinguishing agent that emulsifies and cools heated materials more quickly than water or ordinary foam. It is used extensively in the steel industry. Effective on classes A, B, and D.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=FireAde&action=edit&redlink=1" title="FireAde (page does not exist)">FireAde</a>, a foaming agent that emulsifies burning liquids and renders them non-flammable. It is able to cool heated material and surfaces similar to CAFS. Used on A and B (said to be effective on some class D hazards, although not recommended due to the fact that fireade still contains amounts of water which will react with some metal fires).</li> <li><a class="mw-disambig" href="https://en.wikipedia.org/wiki/Cold_Fire" title="Cold Fire">Cold Fire</a>, is an organic, eco-friendly wetting agent that works to take the heat out of fire by breaking down heat hydrocarbons. Bulk Cold Fire is used in booster tanks and is acceptable for use in CAFS systems. Cold Fire is UL listed and is effective against class A,B,D and K fires. Aerosol versions are preferred by users for cars, boats, RVs, and kitchens. Used primarily by law enforcement, fire departments, EMS, and the racing industry across North America.</li> </ul> <h3> <span class="mw-headline" id="Water">Water</span></h3> Cools burning material. Very effective against fires in furniture, fabrics, etc. (including deep seated fires), but can be safely used only in the absence of electricity.<br /> <ul> <li><a href="https://en.wikipedia.org/wiki/Air_pressurized_water" title="Air pressurized water">Air-pressurized water</a> (APW) cools burning material by absorbing heat from burning material. Effective on class A fires, it has the advantage of being inexpensive, harmless, and relatively easy to clean up. In the <a href="https://en.wikipedia.org/wiki/United_States" title="United States">United States</a>, APW units contain 2.5 US gal (9.5 l) of water in a tall, stainless steel cylinder. In Europe, they are typically mild steel, lined with polyethylene, painted red, containing 6–9 l (1.6–2.4 US gal) of water.</li> <li>Water mist (WM) uses a fine misting nozzle to break up a stream of deionized water to the point of not conducting electricity back to the operator. Class A and C rated. It is used widely in hospitals for the reason that, unlike other clean-agent suppressants, it is harmless and non-contaminant. These extinguishers come in <a class="new" href="https://en.wikipedia.org/w/index.php?title=Template:Vonert&action=edit&redlink=1" title="Template:Vonert (page does not exist)">Template:Vonert</a> units, painted white in the United States and red in Europe.</li> </ul> <h4> <span class="mw-headline" id="Wet_chemical_and_water_additives">Wet chemical and water additives</span></h4> <ul> <li>Wet chemical (<a href="https://en.wikipedia.org/wiki/Potassium_acetate" title="Potassium acetate">potassium acetate</a>, <a href="https://en.wikipedia.org/wiki/Potassium_carbonate" title="Potassium carbonate">carbonate</a>, or <a href="https://en.wikipedia.org/wiki/Potassium_citrate" title="Potassium citrate">citrate</a>) extinguishes the fire by forming a soapy foam blanket over the burning oil and by cooling the oil below its ignition temperature. Generally class A and K (F in Europe) only, although newer models are outfitted with misting nozzles as those used on water mist units to give these extinguishers class B and C fire-fighting capability.</li> <li><a class="new" href="https://en.wikipedia.org/w/index.php?title=Wetting_agents&action=edit&redlink=1" title="Wetting agents (page does not exist)">Wetting agents</a>: Detergent based additives used to break the surface tension of water and improve penetration of class A fires.</li> <li><a href="https://en.wikipedia.org/wiki/Antifreeze" title="Antifreeze">Antifreeze</a> chemicals added to water to lower its freezing point to about −40 °F (−40 °C). Has no appreciable effect on extinguishing performance.</li> </ul> <h3> <span class="mw-headline" id="Clean_agents_and_carbon_dioxide">Clean agents and carbon dioxide</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:5lb._CO2_extinguisher.jpg"><img alt="" class="thumbimage" data-file-height="640" data-file-width="480" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/5lb._CO2_extinguisher.jpg/220px-5lb._CO2_extinguisher.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A 5 lb (2.3 kg) CO₂ fire extinguisher</div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Halon-based_fire_extinguishing_system.JPG"><img alt="" class="thumbimage" data-file-height="3024" data-file-width="4032" height="165" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Halon-based_fire_extinguishing_system.JPG/220px-Halon-based_fire_extinguishing_system.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A pull station to activate halon-based fire extinguishing system next to the deactivation button.</div> </div> </div> Agent displaces oxygen (CO₂ or inert gases), removes heat from the combustion zone (<a class="new" href="https://en.wikipedia.org/w/index.php?title=Halotron&action=edit&redlink=1" title="Halotron (page does not exist)">Halotron</a>, FE-36) or inhibits chemical chain reaction (Halons). They are labelled clean agents because they do not leave any residue after discharge which is ideal for sensitive electronics and documents.<br /> <ul> <li>Halon (including <a href="https://en.wikipedia.org/wiki/Bromochlorodifluoromethane" title="Bromochlorodifluoromethane">Halon 1211</a> and <a href="https://en.wikipedia.org/wiki/Bromotrifluoromethane" title="Bromotrifluoromethane">Halon 1301</a>), a gaseous agent that inhibits the chemical reaction of the fire. Classes B:C for lower weight fire extinguishers (2.3 kg; under 9 lbs) and A:B:C for heavier weights (9–17 lb or 4.1–7.7 kg). Banned from new production, except for military use, as of January 1, 1994 as its properties contribute to ozone depletion and long atmospheric lifetime, usually 400 years. Halon was completely banned in Europe resulting in stockpiles being sent to the United States for reuse. Although production has been banned, the reuse is still permitted. Halon 1301 and 1211 are being replaced with new halocarbon agents which have no ozone depletion properties and low atmospheric lifetimes, but are less effective.</li> <li>Halocarbon replacements, HCFC Blend B (Halotron I, American Pacific Corporation), HFC-227ea (FM-200, Great Lakes Chemicals Corporation), and HFC-236fa (FE-36, DuPont), have been approved by the FAA for use in aircraft cabins in 2010.<sup class="reference" id="cite_ref-16"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-16"><span>[</span>16<span>]</span></a></sup> Considerations for halon replacement include human toxicity when used in confined spaces, ozone depleting potential, and greenhouse warming potential. The three recommended agents meet minimum performance standards, but uptake has been slow because of disadvantages. Specifically, they require two to three times the concentration to extinguish a fire compared with Halon 1211.<sup class="reference" id="cite_ref-17"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-17"><span>[</span>17<span>]</span></a></sup> They are heavier than halon, require a larger bottle because they are less effective, and have greenhouse gas potential.<sup class="reference" id="cite_ref-18"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-18"><span>[</span>18<span>]</span></a></sup> Research continues to find better alternatives.</li> <li><a class="mw-redirect" href="https://en.wikipedia.org/wiki/CO2" title="CO2">CO₂</a>, a clean gaseous agent which displaces oxygen. Highest rating for 20 lb (9.1 kg) portable CO₂ extinguishers is 10B:C. Not intended for class A fires, as the high-pressure cloud of gas can scatter burning materials. CO₂ is not suitable for use on fires containing their own oxygen source, metals or cooking media. Although it can be rather successful on a person on fire, its use should be avoided where possible as it can cause <a href="https://en.wikipedia.org/wiki/Frostbite" title="Frostbite">frostbite</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Suffocation" title="Suffocation">suffocation</a>.</li> <li>Mixtures of inert gases, including <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Inergen" title="Inergen">Inergen</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Argonite" title="Argonite">Argonite</a>.</li> <li>Compressed CO₂ sprinkler is another design used to fight the electric fires with cubic cylinder of 7 cubic meter starting from 1 meter above the sprinkler level.</li> <li>Novec 1230 fluid (AKA <i>dry water</i>, or Saffire fluid), a fluoronated ketone that works by removing massive amounts of heat. Available in fixed systems in the US and in portables in Australia. Unlike other clean agents, this one has the advantage of being a liquid at atmospheric pressure, and can be discharged as a stream or a rapidly vaporizing mist, depending on application.</li> <li>Potassium aerosol particle-generator, contains a form of solid potassium salts and other chemicals referred to as aerosol-forming compounds (AFC). The AFC is activated by an electric current or other thermodynamic exchange which causes the AFC to ignite. The majority of installed currently are fixed units due to the possibility of harm to the user from the heat generated by the AFC generator.</li> </ul> <h3> <span class="mw-headline" id="Class_D">Class D</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Metlx.jpg"><img alt="" class="thumbimage" data-file-height="604" data-file-width="448" height="297" src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/ab/Metlx.jpg/220px-Metlx.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A class D fire extinguisher for various metals</div> </div> </div> There are several class D fire extinguisher agents available; some will handle multiple types of metals, others will not.<br /> <ul> <li><a href="https://en.wikipedia.org/wiki/Sodium_chloride" title="Sodium chloride">Sodium chloride</a> (Super-D, Met-L-X or METAL.FIRE.XTNGSHR) contains sodium chloride salt, which melts to form an oxygen-excluding crust over the metal. Useful on most <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Alkali_metals" title="Alkali metals">alkali metals</a> including <a href="https://en.wikipedia.org/wiki/Sodium" title="Sodium">sodium</a> and <a href="https://en.wikipedia.org/wiki/Potassium" title="Potassium">potassium</a>, and other metals including <a href="https://en.wikipedia.org/wiki/Magnesium" title="Magnesium">magnesium</a>, <a href="https://en.wikipedia.org/wiki/Titanium" title="Titanium">titanium</a>, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Aluminum" title="Aluminum">aluminum</a>, and <a href="https://en.wikipedia.org/wiki/Zirconium" title="Zirconium">zirconium</a>.</li> <li>Copper based (Copper Powder Navy 125S) developed by the U.S. Navy in the 70s for hard-to-control lithium and lithium-alloy fires. Powder smothers and acts as a heat sink to dissipate heat, but also forms a copper-lithium alloy on the surface which is non-combustible and cuts off the oxygen supply. Will cling to a vertical surface. Lithium only.</li> <li><a href="https://en.wikipedia.org/wiki/Graphite" title="Graphite">Graphite</a>-based (G-Plus, G-1, Lith-X, Pyromet or METAL.FIRE.XTNGSHR) contains dry graphite that smothers burning metals. First type developed, designed for magnesium, works on other metals as well. Unlike sodium chloride powder extinguishers, the graphite powder fire extinguishers can be used on very hot burning metal fires such as lithium, but unlike copper powder extinguishers will not stick to and extinguish flowing or vertical lithium fires. Like copper extinguishers, the graphite powder acts as a heat sink as well as smothering the metal fire.</li> <li><a href="https://en.wikipedia.org/wiki/Sodium_carbonate" title="Sodium carbonate">Sodium carbonate</a>-based (Na-X) used where stainless steel piping and equipment could be damaged by sodium chloride based agents to control sodium, potassium, and sodium-potassium alloy fires. Limited use on other metals. Smothers and forms a crust.</li> <li>Some water based suppressants may be used on certain class D fires, such as burning titanium and magnesium. Examples include the Fire Blockade and FireAde brands of suppressant.<sup class="reference" id="cite_ref-urlFireade_2000_Applications_19-0"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-urlFireade_2000_Applications-19"><span>[</span>19<span>]</span></a></sup> Some metals, such as elemental lithium, will react explosively with water, therefore water-based chemicals should never be used on such fires due to the possibility of a violent reaction.</li> </ul> Most class D extinguishers will have a special low velocity nozzle or discharge wand to gently apply the agent in large volumes to avoid disrupting any finely divided burning materials. Agents are also available in bulk and can be applied with a scoop or shovel.<br /> <h3> <span class="mw-headline" id="Fire_extinguishing_ball">Fire extinguishing ball</span></h3> Several modern ball or grenade-style extinguishers are on the market. They are manually operated by rolling or throwing into a fire. The modern version of the ball will self-destruct once in contact with flame, dispersing a cloud of ABC dry chemical powder over the fire which extinguishes the flame. The coverage area is about 5 m² (54 sq ft). One benefit of this type is that it may be used for passive suppression. The ball can be placed in a fire prone area and will deploy automatically if a fire develops, being triggered by heat. Most modern extinguishers of this type are designed to make a loud noise upon deployment.<sup class="reference" id="cite_ref-20"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-20"><span>[</span>20<span>]</span></a></sup><br /> This technology is not new, however. In the 1800s, glass fire grenades filled with suppressant liquids were popular. These glass fire grenade bottles are sought by collectors.<sup class="reference" id="cite_ref-21"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-21"><span>[</span>21<span>]</span></a></sup> Some later brands, such as Red Comet, were designed for passive operation, and included a special holder with a spring-loaded trigger that would break the glass ball when a fusible link melted. As was typical of this era, some glass extinguishers contained the toxic <a href="https://en.wikipedia.org/wiki/Carbon_tetrachloride" title="Carbon tetrachloride">carbon tetrachloride</a>.<br /> <h3> <span class="mw-headline" id="Condensed_aerosol_fire_suppression">Condensed aerosol fire suppression</span></h3> <a href="https://en.wikipedia.org/wiki/Condensed_aerosol_fire_suppression" title="Condensed aerosol fire suppression">Condensed aerosol fire suppression</a> is a particle-based form of fire extinction similar to <a href="https://en.wikipedia.org/wiki/Gaseous_fire_suppression" title="Gaseous fire suppression">gaseous fire suppression</a> or dry chemical fire extinction. As with gaseous fire suppressants, condensed aerosol suppressants use clean agents to suppress the fire. The agent can be delivered by means of mechanical operation, electric operation, or combined electro-mechanical operation. To the difference of gaseous suppressants, which emit only gas, and dry chemical extinguishers, which release powder-like particles of a large size (25-150 <a class="mw-redirect" href="https://en.wikipedia.org/wiki/%CE%9Cm" title="Μm">µm</a>) condensed aerosols are defined by the National Fire Protection Association as releasing finely divided solid particles (generally <10 µm), usually in addition to gas.<sup class="reference" id="cite_ref-22"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-22"><span>[</span>22<span>]</span></a></sup><br /> Whereas dry chemical systems must be directly aimed at the flame, condensed aerosols are flooding agents and therefore effective regardless of the location and height of the fire. Wet chemical systems, such as the kind generally found in foam extinguishers, must, similarly to dry chemical systems, be sprayed directionally, onto the fire. Additionally, wet chemicals (such as potassium carbonate) are dissolved in water, whereas the agents used in condensed aerosols are microscopic solids.<br /> <h3> <span class="mw-headline" id="Low-frequency_sound">Low-frequency sound</span></h3> In 2015, researchers announced that high volume sound in the 30 to 60 <a href="https://en.wikipedia.org/wiki/Hertz" title="Hertz">hertz</a> range drives oxygen away from the combustion surface, extinguishing the fire. One proposed application is to extinguish fires in <a href="https://en.wikipedia.org/wiki/Outer_space" title="Outer space">outer space</a>, with none of the clean-up required for mass-based systems.<sup class="reference" id="cite_ref-23"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-23"><span>[</span>23<span>]</span></a></sup><br /> <h2> <span class="mw-headline" id="Maintenance">Maintenance</span></h2> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire7041.JPG"><img alt="" class="thumbimage" data-file-height="3072" data-file-width="2304" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Fire7041.JPG/220px-Fire7041.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> An empty fire extinguisher which was not replaced for years.</div> </div> </div> Most countries in the world require regular fire extinguisher maintenance by a competent person to operate safely and effectively, as part of fire safety legislation. Lack of maintenance can lead to an extinguisher not discharging when required, or rupturing when pressurized. Deaths have occurred, even in recent times, from corroded extinguishers exploding.<br /> There is no all-encompassing fire code in the United States. Generally, most municipalities (by adoption of the <a class="new" href="https://en.wikipedia.org/w/index.php?title=International_Code_Council&action=edit&redlink=1" title="International Code Council (page does not exist)">International Fire Code</a>) require inspections every 30 days to ensure the unit is pressurized and unobstructed (done by an employee of the facility) and an annual inspection by a qualified technician. <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Hydrostatic_pressure" title="Hydrostatic pressure">Hydrostatic pressure</a> testing for all types of extinguishers is also required, generally every five years for water and CO₂ models up to every 12 years for dry chemical models.<br /> Recently the National Fire Protection Association and ICC voted to allow for the elimination of the 30-day inspection requirement so long as the fire extinguisher is monitored electronically. According to NFPA, the system must provide record keeping in the form of an electronic event log at the control panel. The system must also constantly monitor an extinguisher’s physical presence, internal pressure and whether an obstruction exists that could prevent ready access. In the event that any of the above conditions are found, the system must send an alert to officials so they can immediately rectify the situation. Electronic monitoring can be wired or wireless.<br /> In the UK, three types of maintenance are required:<br /> <ul> <li>Basic service: All types of extinguisher require a basic inspection annually to check weight, externally validate the correct pressure, and find any signs of damage or corrosion. Cartridge extinguishers are to be opened up for internal inspection, and to have the weight of the cartridge tested. Labels must be inspected for legibility, and where possible, dip tubes, hoses and mechanisms must be tested for clear, free operation.</li> <li>Extended service: Water, wet chemical, foam, and powder extinguishers require a more detailed examination every five years, including a test discharge and recharge. On stored pressure extinguishers, this is the only opportunity to internally inspect for damage/corrosion.</li> <li>Overhaul: CO₂ extinguishers, due to their high operating pressure, are subject to pressure vessel safety legislation, and must be hydraulic pressure tested, inspected internally and externally, and date stamped every 10 years. As it cannot be pressure tested, a new valve is also fitted. If any part of the extinguisher is replaced with a part from another manufacturer, then the extinguisher will lose its fire rating.</li> </ul> In the United States, there are 3 types of service:<br /> <ul> <li>Maintenance inspection: All types of extinguishers should be inspected at least once a year. The extinguisher is checked that it has the correct volume and pressure of extinguishing agent, that it is within the required hydrotest and internal maintenance intervals, that it is in good condition, and that all external parts are still serviceable. Dry chemical and dry powder types may also be hit on the bottom with a rubber mallet to make sure the powder is free-flowing. After inspection, the tech will attach a new tamper seal and yearly service tag around the pin.</li> <li>Internal maintenance: <ul> <li>Water - annually (some states) or 5 years (NFPA 10, 2010 edition)</li> <li>Foam - every 3 years</li> <li>Wet chemical, and CO₂ - every 5 years</li> <li>Dry chemical and dry powder- every 6 years</li> <li>Halon and clean agents - every 6 years.</li> <li>Cartridge-operated dry chemical or dry powder - annually</li> <li>Stored-pressure dry chemical mounted on vehicles - annually</li> </ul> <dl><dd>The extinguisher is emptied of its chemical and pressure to check for proper operation. All components are disassembled, inspected, cleaned, lubricated, or replaced if defective. Liquid agents are replaced at this time, dry agents may be re-used if in good condition, halon is recovered and re-used, but CO₂ is discharged into the atmosphere. The extinguisher is then re-filled and recharged, after a "verification of service" collar is placed around the cylinder neck. It is impossible to properly install or remove a collar without depressurizing the extinguisher.</dd><dd>Note: Cartridge-operated extinguishers should be visually examined, but do not require a verification of service collar.</dd></dl> </li> <li>Hydrostatic testing: Water, foam, wet chemical, and CO₂, every 5 years. Dry chemical, dry powder, halon, and clean agents, every 12 years.</li> </ul> Note: these are the required intervals for normal service conditions, if the extinguisher has been exposed to excessive heat, vibration, or mechanical damage it may need to be tested sooner.<br /> The agent is emptied and depressurized and the valve is removed. After a thorough internal and external visual inspection, the cylinder is filled with water, placed inside a safety cage, and pressurized to the specified test pressure (varies with the type, age, and cylinder material) for the specified time period. If no failure, bulges, or leaks are detected, the cylinder passes. The cylinder is then emptied of water and thoroughly dried, and labeled with the test date and company that performed the test. CO₂ types have the test information stamped on the cylinder, all other types get a sticker on the back of the cylinder. Once dry, the units are recharged. Unlike the UK, the US does not rebuild extinguishers and replace valves at specific intervals unless parts are found to be defective, with the exception of halon. Halon types are often given new o-rings and valve stems at every internal maintenance to minimize any leakage potential.<br /> OEM equipment must be used for replacement parts for the extinguisher to maintain its UL rating. If parts are unavailable, replacement is recommended, keep in mind extinguishers have a projected service life of about 25–35 years, although many are of such quality that they can outlast this, but realize that science is ever-changing, and something that was the best available 30 years ago may not be acceptable for modern fire protection needs.<br /> <h3> <span class="mw-headline" id="Vandalism_and_extinguisher_protection">Vandalism and extinguisher protection</span></h3> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Fire_Extinguisher.JPG"><img alt="" class="thumbimage" data-file-height="2592" data-file-width="1944" height="293" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Fire_Extinguisher.JPG/220px-Fire_Extinguisher.JPG" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> A fire extinguisher stored inside a cabinet mounted to a wall</div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Aa_big_fire_extinguisher_00.jpg"><img alt="" class="thumbimage" data-file-height="768" data-file-width="1024" height="165" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Aa_big_fire_extinguisher_00.jpg/220px-Aa_big_fire_extinguisher_00.jpg" width="220" /></a> <div class="thumbcaption"> </div> </div> </div> <div class="thumb tright"> <div class="thumbinner" style="width: 222px;"> <div class="thumbcaption"> Heavy-duty CO₂-powered fire extinguisher on standby at a temporary <a href="https://en.wikipedia.org/wiki/Helicopter" title="Helicopter">helicopter</a> landing site</div> </div> </div> Fire extinguishers are sometimes a target of vandalism in schools and other open spaces. Extinguishers are occasionally partially, or fully discharged by a vandal, impairing the extinguisher's actual fire-fighting abilities.<br /> In open public spaces, extinguishers are ideally kept inside cabinets that have glass that must be broken to access the extinguisher, or which emit an alarm siren that cannot be shut off without a key, to alert people the extinguisher has been handled by an unauthorized person if a fire is not present. This also alerts maintenance to check an extinguisher for usage so that it may be replaced if it has been used.<br /> <h2> <span class="mw-headline" id="Fire_extinguisher_signs">Fire extinguisher signs</span></h2> Fire extinguisher identification signs are small signs designed to be mounted near a fire extinguisher, in order to draw attention to the extinguisher's location (e.g., if the Extinguisher is on a large pole, the sign would generally be at the top of the pole so it can be seen from a distance). Such signs may be manufactured from a variety of materials, commonly self-adhesive vinyl, rigid <a class="mw-redirect" href="https://en.wikipedia.org/wiki/PVC" title="PVC">PVC</a>, and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Aluminum" title="Aluminum">aluminum</a>.<br /> In addition to words and pictographs indicating the presence of a fire extinguisher, some modern extinguisher identification signs also describe the extinguishing agent in the unit, and summarize the types of fire on which it may safely be used.<br /> Some public and government buildings are often required, by local legal codes, to provide an identification sign for each extinguisher on the site.<sup class="reference" id="cite_ref-24"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-24"><span>[</span>24<span>]</span></a></sup><br /> Similar signs are available for other fire equipment (including <a href="https://en.wikipedia.org/wiki/Fire_blanket" title="Fire blanket">fire blankets</a> and <a href="https://en.wikipedia.org/wiki/Fire_hose" title="Fire hose">fire hose</a> reels/racks), and for other emergency equipment (such as <a class="mw-redirect" href="https://en.wikipedia.org/wiki/First_aid_kits" title="First aid kits">first aid kits</a>).<br /> <h3> <span class="mw-headline" id="Placement_of_fire_extinguisher_signs">Placement of fire extinguisher signs</span></h3> Most licensing authorities have regulations describing the standard appearance of these signs (e.g., text height, pictographs used and so on).<sup class="reference" id="cite_ref-25"><a href="https://en.wikipedia.org/wiki/Fire_extinguisher#cite_note-25"><span>[</span>25<span>]</span></a></sup><br /> <h3> <span class="mw-headline" id="Photoluminescent_fire_extinguisher_location_signs">Photoluminescent fire extinguisher location signs</span></h3> <table class="metadata plainlinks ambox ambox-content ambox-Unreferenced" role="presentation"> <tbody> <tr> <td class="mbox-image"> <div style="width: 52px;"> <a class="image" href="https://en.wikipedia.org/wiki/File:Question_book-new.svg"><img alt="" data-file-height="204" data-file-width="262" height="39" src="https://upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" width="50" /></a></div> </td> <td class="mbox-text"><span class="mbox-text-span">This section <b>does not <a href="https://en.wikipedia.org/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">cite</a> any <a href="https://en.wikipedia.org/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">sources</a></b>. <span class="hide-when-compact">Please help improve this section by <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Help:Introduction_to_referencing/1" title="Help:Introduction to referencing/1">adding citations to reliable sources</a>. Unsourced material may be challenged and <a href="https://en.wikipedia.org/wiki/Wikipedia:Verifiability#Burden_of_evidence" title="Wikipedia:Verifiability">removed</a>.</span> <small><i>(August 2015)</i></small></span></td> </tr> </tbody></table> Photoluminescent fire extinguisher signs are made with nontoxic <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Photoluminescent" title="Photoluminescent">photoluminescent</a> phosphor that absorbs ambient light and releases it slowly in dark conditions—the sign "glows in the dark". Such signs are independent of an external power supply, and so offer a low-cost, reliable means of indicating the position of emergency equipment in dark or smoky conditions. The luminance performance for life safety appliance location signs should meet the requirements of International Standard ISO 17398 so that the sign is not only excited at very low ambient light levels (25 lux), but also has effective luminance intensity and longevity, making the life-safety message conspicuous in the event of power failure, or if smoke obscures emergency ceiling lights. The Photoluminescent Safety Products Association (PSPA) has guidance classifications for luminance performance to help users with applications under "International Maritime Organization Emergency Equipment and Life-saving Appliance Location Requirements," and world-wide industrial fire-safety management requirements.<br /> Photo-luminescent signs are sometimes wrongfully described as being <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Reflective" title="Reflective">reflective</a>. A reflective material will only return ambient light for as long as the light source is supplied, rather than storing energy and releasing it over a period of time. But, many fire extinguishers and extinguisher-mounting posts have strips of <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Retroreflective" title="Retroreflective">retroreflective</a> adhesive tape placed on them to facilitate their location in situations where only emergency lighting or <a href="https://en.wikipedia.org/wiki/Flashlight" title="Flashlight">flashlights</a> are available.<br /> <h2> <span class="mw-headline" id="See_also">See also</span></h2> <div class="noprint portal tright" style="border: solid #aaa 1px; margin: 0.5em 0 0.5em 1em;"> <table style="background: #f9f9f9; font-size: 85%; line-height: 110%; max-width: 175px;"> <tbody> <tr style="vertical-align: middle;"> <td style="text-align: center;"><a class="image" href="https://en.wikipedia.org/wiki/File:Large_bonfire.jpg"><img alt="Portal icon" class="noviewer" data-file-height="533" data-file-width="800" height="21" src="https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Large_bonfire.jpg/32px-Large_bonfire.jpg" width="32" /></a></td> <td style="font-style: italic; font-weight: bold; padding: 0 0.2em; vertical-align: middle;"><a href="https://en.wikipedia.org/wiki/Portal:Fire" title="Portal:Fire">Fire portal</a></td> </tr> </tbody></table> </div> <ul> <li><a href="https://en.wikipedia.org/wiki/Fire_Equipment_Manufacturers%27_Association" title="Fire Equipment Manufacturers' Association">Fire Equipment Manufacturers' Association</a></li> <li><a href="https://en.wikipedia.org/wiki/National_Fire_Protection_Association" title="National Fire Protection Association">National Fire Protection Association</a> (NFPA)</li> </ul> <h2> <span class="mw-headline" id="References">References</span></h2> <div class="reflist columns references-column-width" style="-moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><br /></li> </ol> </div> <div class="mw-content-ltr" dir="ltr" id="mw-content-text" lang="en"> <li id="cite_note-1"> <span class="reference-text"><a class="external text" href="http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=0258293.PN.&OS=PN/0258293&RS=PN/0258293" rel="nofollow">The United States Patent and Trademark Office * Volume 192</a> - September 15, 1881</span></li> <li id="cite_note-urlStaffordshire_Past_Track_-Petrolex_half_gallon_fire_extinguisher-2"><br /></li> <li id="cite_note-urlStaffordshire_Past_Track_-Petrolex_half_gallon_fire_extinguisher-2"> <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.search.staffspasttrack.org.uk/engine/resource/default.asp?resource=14547" rel="nofollow">"Staffordshire Past Track -"Petrolex" half gallon fire extinguisher"</a><span class="reference-accessdate">. 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Vintage Fire Extinguishers<span class="reference-accessdate">. Retrieved <span class="nowrap">23 December</span> 2009</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fen.wikipedia.org%3AFire+extinguisher&rft.btitle=Pyrene+Fire+Extinguishers&rft.genre=unknown&rft_id=http%3A%2F%2Fwww.vintagefe.com%2Fpyrene.html&rft.pub=Vintage+Fire+Extinguishers&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook"></span></span></li> <li id="cite_note-7"><br /></li> <li id="cite_note-7"> <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.inchem.org/documents/hsg/hsg/hsg108.htm" rel="nofollow">"Carbon Tetrachloride Health and Safety Guide"</a>. IPCS International Programme on Chemical Safety<span class="reference-accessdate">. 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Fire extinguisher

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