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【英文标准名称】:StandardTestMethodsforPolyurethaneRawMaterialsDeterminationoftheIsocyanateContentofAromaticIsocyanates
【原文标准名称】:芳香异氰酸酯中的异氰酸酯含量的聚亚胺酯原材料方测定的标准试验方法
【标准号】:ASTMD5155-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.22
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:isocyanates;isocyanatesaromatic;methylene-bis-(4-phenylisocyanate);polymethylenepolyphenylisocyanate;polyurethane;rawmaterials;testmethod;titration;toluenediisocyanate;Dibutylamine;Heatedtoluene-dibutylami
【摘要】:Thesetestmethodscanbeusedforresearchorforqualitycontroltocharacterizeisocyanatesusedinpolyurethaneproducts.1.1Thesetestmethodsmeasuretheisocyanatecontentofaromaticisocyanatesusedaspolyurethanerawmaterials.1.1.1TestMethodA8212;Unheatedtoluene-dibutylaminedeterminesthetoluenediisocyanatecontent,theamineequivalentandtheisocyanatecontentofrefinedtoluene-2,4-diisocyanateandtoluene-2,6-diisocyanate,ormixturesofthetwo.Otherisomers,ifpresent,willbeincludedinthedetermination.Thistestmethodmayalsobeappliedtootherisocyanatesofsuitablereactivityandsolubility.1.1.2TestMethodB8212;Heatedtoluene-dibutylaminedeterminestheamineequivalentandtheisocyanatecontentofcrudeormodifiedisocyanatesderivedfromtoluenediisocyanate,methylenedi-(4-phenylisocyanate)andpolymeric(methylenephenylisocyanate).1.1.3TestMethodC8212;Unheatedtrichlorobenzene-toluene-dibutylaminedeterminestheamineequivalentandtheisocyanatecontentofcrudeormodifiedisocyanatesderivedfromtoluenediisocyanate,methylene-di-(4-phenylisocyanate)andpolymeric(methylenephenylisocyanate).1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;MethodCofthistestmethodisequivalenttoMethodBofISO14896.
【中国标准分类号】:G17
【国际标准分类号】:83_080_20
【页数】:5P.;A4
【正文语种】:英语