ANSI/ASTM D5523-1994 聚氨基甲酸乙酯原料试验方法：测定单体、芳香异氰酸酯中的可水解氯的银盐定量测定酸度
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【英文标准名称】:TestMethodforPolyurethaneRawMaterials:AciditybyArgentometricDeterminationofHydrolyzableChlorineinMonomeric,AromaticIsocyanates
【原文标准名称】:聚氨基甲酸乙酯原料试验方法：测定单体、芳香异氰酸酯中的可水解氯的银盐定量测定酸度
【标准号】:ANSI/ASTMD5523-1994
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【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】:塑料;聚氨酯;pH值
【英文主题词】:plastics;polyurethane;ph
【摘要】:Thistestmethodmeasuresthehydrolyzablechlorinecontentofmonomeric,aromaticisocyanatesusedaspolyurethanerawmaterialsandexpressesitasHClacidity.Thetestmethodisapplicabletotoluenediisocyanate(TDI)andmonomericmethylene-bis-(4-phenylisocyanate),knownasMDI.Themainsourcesofhydrolyzablechlorineand,therefore,acidityinmonomericaromaticisocyanatesarecarbamylchlorides,acidchlorides,anddissolvedphosgene.Allofthesecompoundsreactwithalcoholsandwatertoformhydrochloricacid.ThistestmethodappliesonlytomonomericisocyanatesinwhichalloftheacidityisderivedfromspeciesthatgenerateHClonsolvolysis.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThereisnoequivalentISOstandard.
【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
Product Code:SAE AMS5701
Title:Nickel Alloy, Corrosion and Heat Resistant, Bars, Forgings, and Rings, 41.5ni 16cr 37fe 2.9cb 1.8ti, Consumable Electrode Or Vacuum Induction Melted, 1800Mdf (982Mdc) Solution Heat Treated
Issuing Committee:Ams F Corrosion Heat Resistant Alloys Committee
Scope:This specification covers a corrosion and heat resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings. These products have been used typically for parts requiring good machinability and high strength at room and cryogenic temperatures for short-time use up to 1000 degrees F (538 degrees C), particularly parts which are welded and then precipitation heat treated to develop required properties, but usage is not limited to such applications.【英文标准名称】:TerminologyRelatingtoTraveledSurfaceCharacteristics
【原文标准名称】:有关车行路面特性的术语
【标准号】:ASTME867-1995
【标准状态】:作废
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:术语;材料;表面;定义;施工材料;精整;建筑;路面(道路);额定值;路面;道路建筑
【英文主题词】:terminology;pavements(roads);surfaces;constructionmaterials;construction;ratings;definitions;finishes;materials;pavement;roadconstruction
【摘要】:
【中国标准分类号】:P66
【国际标准分类号】:01_040_93;93_080_20
【页数】:
【正文语种】:英语