【英文标准名称】:StandardTestMethodforPolyurethaneRawMaterials:DeterminationofAcidityinModeratetoHighAcidityAromaticIsocyanates
【原文标准名称】:聚氨酯原材料的标准试验方法:中酸度至高酸度芳香异氰酸酯酸度的测定
【标准号】:ASTMD6099-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:acidity;aromaticisocyanates;isocyanates;MDI;methylenediphenyldiisocyanate;polyurethane;rawmaterials;TDI;titration;toluenediisocyanate;Acidity,alkalinity,pH--plastics;Aromaticisocyanates;Polyurethanerawmaterials;Acidity,alka
【摘要】:Thistestmethodcanbeusedforresearchorforqualitycontroltocharacterizearomaticisocyanatesandprepolymersofmoderatetohighacidity.Aciditycorrelateswithperformanceinsomepolyurethanesystems.1.1Thistestmethoddeterminestheacidity,expressedaspartspermillion(ppm)ofHCl,inaromaticisocyanatesamplesofgreaterthan100x2013;ppmacidity.Thetestmethodisapplicabletoproductsderivedfromtoluenediisocyanateandmethylene-bis-(4x2013;phenylisocyanate)(seeNote1).Note18212;ThistestmethodisequivalenttoISO14898,TestMethodA.
【中国标准分类号】:G31
【国际标准分类号】:83_040_01
【页数】:3P.;A4
【正文语种】:英语