作者:标准资料网 时间:2024-05-14 11:55:13   浏览:8536   来源:标准资料网

【英文标准名称】:Plastics-Polyurethanerawmaterials-Determinationofisocyanatecontent
【原文标准名称】:塑料聚氨酯原材料异氰酸酯的测定
【标准号】:ISO14896-2000
【标准状态】:作废
【国别】:国际
【发布日期】:2000-09
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:基底材料;塑料;聚氨酯;浓缩;化学分析和试验;异氰酸酯;定义;含量测定
【英文主题词】:Basematerials;Basicmaterials;Chemicalanalysisandtesting;Concentration;Definition;Definitions;Determinationofcontent;Isocyanates;Methodsofanalysis;Plastics;Polyurethane;Rawmaterials
【摘要】:ThisInternationalStandardspecifiestwomethodsforthemeasurementoftheisocyanatecontentofaromaticiso-cyanatesusedaspolyurethanerawmaterials.MethodAisprimarilyapplicabletorefinedtoluenediisocyanate(TDI),methylene-bis-(4-phenylisocyanate)(MDI)andtheirprepolymers.MethodBisapplicabletorefined,crudeormodi-fiedisocyanatesderivedfromtoluenediisocyanate,methylene-bis-(4-phenylisocyanate)andpolymethylenepolyphenylisocyanate.Itcanalsobeusedforisomermixturesoftoluenediisocyanate,methylene-bis-(4-phenyl-isocyanate)andpolymethylenepolyphenylisocyanate.Otheraromaticisocyanatesmaybeanalysedbythismethodifprecautionsaretakentoverifysuitability.Itisnotapplicabletoblockedisocyanates.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:9P;A4
【正文语种】:英语