ASTM D5629-2005 聚氨基甲酸乙酯原料的标准试验方法:低酸度芳香异氰酸酯和聚氨基甲酸乙酯预聚物中酸度的测定
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【英文标准名称】:StandardTestMethodforPolyurethaneRawMaterialsDeterminationofAcidityinLow-AcidityAromaticIsocyanatesandPolyurethanePrepolymers
【原文标准名称】:聚氨基甲酸乙酯原料的标准试验方法:低酸度芳香异氰酸酯和聚氨基甲酸乙酯预聚物中酸度的测定
【标准号】:ASTMD5629-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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;塑料;滴定法;强碱性;异氰酸酯;pH值;酸度;聚氨酯
【英文主题词】:acidity,aromaticIsocyanates;isocyanates;methylenediphenyldiisocyanate;MDI;prepolymer;polyurethane;rawmaterials;testmethod;TDI;titration;toluenediisocyanate
【摘要】:Thistestmethodcanbeusedforresearchorforqualitycontroltocharacterizearomaticisocyanatesandlow-acidityprepolymers.Aciditycorrelateswithperformanceinsomepolyurethanesystems.1.1Thistestmethodmeasurestheacidity,expressedasppmofhydrochloricacid(HCl),inaromaticisocyanateorpolyurethaneprepolymersamplesofbelow100ppmacidity.Thetestmethodisapplicabletoproductsderivedfromtoluenediisocyanateandmethylene-bis-(4-phenylisocyanate)(seeNote0).RefertoTestMethodD6099fordeterminationofacidityinmoderate-tohigh-acidityaromaticisocyanates.ISO14898,MethodBistechnicallyequivalenttothistestmethod.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:3P.;A4
【正文语种】:
【原文标准名称】:聚氨基甲酸乙酯原料的标准试验方法:低酸度芳香异氰酸酯和聚氨基甲酸乙酯预聚物中酸度的测定
【标准号】:ASTMD5629-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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;塑料;滴定法;强碱性;异氰酸酯;pH值;酸度;聚氨酯
【英文主题词】:acidity,aromaticIsocyanates;isocyanates;methylenediphenyldiisocyanate;MDI;prepolymer;polyurethane;rawmaterials;testmethod;TDI;titration;toluenediisocyanate
【摘要】:Thistestmethodcanbeusedforresearchorforqualitycontroltocharacterizearomaticisocyanatesandlow-acidityprepolymers.Aciditycorrelateswithperformanceinsomepolyurethanesystems.1.1Thistestmethodmeasurestheacidity,expressedasppmofhydrochloricacid(HCl),inaromaticisocyanateorpolyurethaneprepolymersamplesofbelow100ppmacidity.Thetestmethodisapplicabletoproductsderivedfromtoluenediisocyanateandmethylene-bis-(4-phenylisocyanate)(seeNote0).RefertoTestMethodD6099fordeterminationofacidityinmoderate-tohigh-acidityaromaticisocyanates.ISO14898,MethodBistechnicallyequivalenttothistestmethod.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_10
【页数】:3P.;A4
【正文语种】:
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