材(cai)料全(quan)自動(dong)極(ji)限(xian)氧指(zhi)數(shu)（LOI）測定(ding)儀的測試(shi)標(biao)準(zhun)
氧指(zhi)數(shu)的標(biao)準(zhun)要求|極限氧指(zhi)數(shu)是指(zhi)聚(ju)合(he)物(wu)在(zai)氧和氮混合(he)氣體中當剛能(neng)支撐其燃(ran)燒(shao)時(shi)氧的體積(ji)分數(shu)濃(nong)度(du)。是表征材(cai)料燃(ran)燒(shao)行(xing)為的(de)指(zhi)數(shu)。極限(xian)氧指(zhi)數(shu)可(ke)以用(yong)燃(ran)燭(zhu)試(shi)驗測定(ding)，將壹(yi)個(ge)聚(ju)合(he)物(wu)棒在特(te)定條(tiao)件(jian)下(xia)向(xiang)下(xia)燃(ran)燒(shao)進(jin)行測定(ding)。通(tong)常認(ren)為(wei)極(ji)限氧指(zhi)數(shu)為22時(shi)，該物質可(ke)以在(zai)空(kong)氣中燃燒(shao)。氧指(zhi)數(shu)高表(biao)示(shi)材(cai)料不(bu)易(yi)燃(ran)燒(shao)，氧指(zhi)數(shu)低表(biao)示(shi)材(cai)料容(rong)易(yi)燃(ran)燒(shao)，壹(yi)般(ban)認為氧指(zhi)數(shu)<22屬於易(yi)燃(ran)材(cai)料，氧指(zhi)數(shu)在22---27之(zhi)間屬可(ke)燃材(cai)料，氧指(zhi)數(shu)>27屬難燃(ran)材(cai)料。 

測試(shi)原(yuan)理： 
將試(shi)樣(yang)豎(shu)直地(di)固定在(zai)玻(bo)璃燃燒(shao)筒(tong)中， 其底(di)座(zuo)與可(ke)產生氮(dan)氧混合(he)氣流(liu)的(de)裝置(zhi)相連，點燃(ran)試樣(yang)的頂(ding)端(duan)， 混合(he)氣流(liu)中的氧濃(nong)度(du)將會持(chi)續下(xia)降(jiang)，直至火焰(yan)熄(xi)滅.
常用的氧指(zhi)數(shu)測試(shi)標(biao)準(zhun)：
ASTM D2863-2013  Standard Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion of Plastics (Oxygen Index)
ISO 4589-2:1996/Amd 1:2005 Determination of burningbehavior by oxygen index Part 2: Ambient-temperature test AMENDMENT 1

GB/T 2406.2-2009塑(su)料(liao) 用(yong)氧指(zhi)數(shu)法測定(ding)燃(ran)燒(shao)行(xing)為 第(di)2部分(fen)：室(shi)溫(wen)試驗(yan) 
GB/T 18884.3-2002 家用(yong)廚房(fang)設(she)備 第3部分(fen)：試(shi)驗(yan)方法與檢驗規(gui)則(適(shi)用(yong)於家用(yong)廚房(fang)設(she)備/人造板)
JIS K7201-2:2007Plastics -- Determination ofburning behaviour by oxygen index -- Part 2: Ambient-temperature test

JIS K7201-2:2007高(gao)分(fen)子材(cai)料的(de)燃燒(shao)試(shi)驗方法--氧指(zhi)數(shu)法--第(di)2部分(fen):室(shi)溫(wen)試驗(yan) 
GB/T 8924-2005纖(xian)維(wei)增強(qiang)塑(su)料燃(ran)燒(shao)性(xing)能(neng)試驗方法氧指(zhi)數(shu)法 
GB/T 5454-1997 紡織(zhi)品(pin) 燃燒(shao)性(xing)能(neng)試驗 氧指(zhi)數(shu)法；；摘(zhai)自(zi)：北(bei)京鑫生卓(zhuo)銳(rui)科技有(you)限(xian)公(gong)司(si)技(ji)術(shu)服務部