【英文标准名称】:GermaniumDetectorsforlonizingRadiation,TestProceduresforHigh-Purity
【原文标准名称】:电离辐射用高纯度锗探测器的试验程序
【标准号】:ANSI/IEEE645-1977
【标准状态】:作废
【国别】:美国
【发布日期】:1977
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电离辐射;电子工程;电气工程
【英文主题词】:electricalengineering;electronicengineering;ionizingradiation
【摘要】:
【中国标准分类号】:F81
【国际标准分类号】:17_240
【页数】:
【正文语种】:英语


【英文标准名称】:TestMethodforPolyurethaneRawMaterials:DeterminationoftheIsocyanateContentofAromaticIsocyanates(08.03)
【原文标准名称】:聚氨酯原料试验方法:芳香类异氰酸盐中异氰酸含量的测定
【标准号】:ANSI/ASTMD5155-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:2001-11-10
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:聚氨酯;原材料;异氰酸酯;含量测定
【英文主题词】:determinationofcontent;polyurethane;rawmaterials;isocyanates
【摘要】:Thesetestmethodsmeasuretheisocyanatecontentofaromaticisocyanatesusedaspolyurethanerawmaterials.TestMethodA-Unheatedtoluene-dibutylaminedeterminestheamountoftoluenediisocyanateinrefinedtoluene-2,4-diisocyanateandtoluene-2,6-diisocyanate,ormixturesofthetwo.Otherisomers,ifpresent,willbeincludedinthedetermination.Thistestmethodmayalsobeappliedtootherisocyanatesofsuitablereactivityandsolubility.TestMethodB-Heatedtoluene-dibutylaminedeterminestheamineequivalentofcrudeormodifiedisocyanatesderivedfromtoluenediisocyanate,methylenebis-(4-phenylisocyanate),andpolymethylenepolyphenylisocyanate.TestMethodC-Unheatedtrichlorobenzene-toluene-dibutylaminedeterminestheisocyanatecontentofcrudeormodifiedisocyanatesderivedfromtoluenediisocyanate,methylene-bis-(4-phenylisocyanate),andpolymethylenepolyphenylisocyanate.Thistestmethodcanalsobeusedtoassayisomermixturesoftoluenediisocyanateandmethylene-bis-(phenylisocyanate).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarningandprecautionarystatements,seeNote2.Note1-MethodCofthistestmethodisequivalenttoMethodBofISO14896.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:
【正文语种】:英语