ASTM D4661-2009 聚氨酯原材料的标准试验方法:异氰酸酯中总氯化物含量的标准试验方法

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【英文标准名称】:StandardTestMethodsforPolyurethaneRawMaterials:DeterminationofTotalChlorineinIsocyanates
【原文标准名称】:聚氨酯原材料的标准试验方法:异氰酸酯中总氯化物含量的标准试验方法
【标准号】:ASTMD4661-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:aromaticisocyanates;chlorine;isocyanates;oxygenbomb;polyurethanerawmaterials;Sch?/span>nigerignition;titration;Chlorinecontent--plastics;Isocyanates;Isomeranalysis;Mixedisomers;Oxygenbombmethod;Polyurethan
【摘要】:Thesetestmethodscanbeusedforresearchorforqualitycontroltodeterminethetotalchlorinecontentofaromaticisocyanates.Insomeinstancestotalchlorinecontentmaycorrelatewithperformanceinpolyurethanesystems.1.1Thesetestmethodsdeterminethetotalchlorinecontentofaromaticisocyanatesusedaspolyurethanerawmaterials.Thedifferencebetweenthetotalchlorinecontentandthehydrolyzablechlorinecontent(seeTestMethodD4663)isameasureoftheamountofo-dichlorobenzeneandotherring-substitutedchlorinatedproductsthatarepresent.Bothproceduresareapplicabletoavarietyoforganiccompoundsbuttheamountofsampleusedmayhavetobevaried.(SeeNote1.)1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:5P.;A4
【正文语种】:英语