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【英文标准名称】:StandardTestMethodforPolyurethaneRawMaterials:DeterminationofAPHAColorinIsocyanates
【原文标准名称】:聚氨基甲酸乙酯原材料的标准试验方法:异氰酸酯APHA颜色的测定
【标准号】:ASTMD4877-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:试验;异氰酸酯;比色法
【英文主题词】:APHA;color;isocyanates;platinum-cobaltscalepolyurethanerawmaterials;Pt/Coscale
【摘要】:Thistestmethodcanbeusedforresearchorforqualitycontroltocharacterizeisocyanatesusedinpolyurethaneproducts.Fortoluenediisocyanate,resultsfromthistestmethodcanrelatetoreactivityorperformanceinpolyurethanesystems.1.1Thistestmethodmeasuresthecolorofclearliquids.Itisapplicableonlytomaterialswhosecolor-producingbodieshavelight-absorptioncharacteristicssimilartothoseoftheplatinumcobaltcolorstandardsused.(SeeTestMethodD1209andNote1.)1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardsstatementssee7.1andNote2.Note18212;AlthoughthistestmethodandISO6271-1997differinsomedetails,dataobtainedusingeitheraretechnicallyequivalent.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】: