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ASTM D4273-2005 聚氨基甲酸乙酯原料的标准试验方法:聚醚多元醇的原羟基含量的测定

作者:标准资料网 时间:2024-05-11 15:48:23  浏览:8102   来源:标准资料网
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【英文标准名称】:StandardTestMethodsforPolyurethaneRawMaterialsDeterminationofPrimaryHydroxylContentofPolyetherPolyols
【原文标准名称】:聚氨基甲酸乙酯原料的标准试验方法:聚醚多元醇的原羟基含量的测定
【标准号】:ASTMD4273-2005
【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】:聚醚;羟基值;聚氨酯;含量测定;测定;塑料;材料
【英文主题词】:NMR;nuclearmagneticresonancespectroscopy;polyetherpolyol;polyurethanerawmaterials
【摘要】:Measurementsofprimaryhydroxylcontentareusefulforprovidinginformationregardingtherelativereactivitiesofpolyols.1.1Carbon-13NuclearMagneticResonanceSpectroscopy(carbon-13NMR),measurestheprimaryhydroxylcontentofethyleneoxide-propyleneoxidepolyethersusedinpreparingflexiblefoams.Itisbestsuitedforpolyetherswithprimaryhydroxylcontentsof10to90%.Note18212;ThereisnoequivalentISOstandard.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:8P.;A4
【正文语种】:


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MIL-E-16298D, MILITARY SPECIFICATION: ELECTRIC MACHINES HAVING ROTATING PARTS, ACCESSORIES AND ASSOCIATED SUPPORT ITEMS: PACKAGING OF (07 MAR 1989)., This specification covers the packaging (preservation, packing and marking) requirements for motors, generators, motor-generators, dynamotors, rotary converters, rotary inverters, rotary frequency changers, electrical starters, and similar rotating electric equipment accessories and support items (spares, repair parts and tools). It does not cover such requirements for synchros and servo motors. Although primarily intended for unmounted machines, this specification may also be used for electric machines attached to prime movers, driven auxiliaries, or other electric machines.【英文标准名称】:GuidelinesfortheuseofISO5167:2003
【原文标准名称】:ISO5167-2003使用指南
【标准号】:ISO/TR9464-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-05-15
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC30
【标准类型】:()
【标准水平】:()
【中文主题词】:隔膜;隔膜(机械部件);差动装置;流量;流量测量;流体;使用说明书;喷嘴;标准;管;文杜利管
【英文主题词】:Diaphragms;Diaphragms(mechanicalcomponents);Differentialdevices;Flow;Flowmeasurement;Flowmeasurements;Fluids;Instructionsforuse;Nozzles;Standards;Tubes;Venturitubes
【摘要】:ISO/TR9464:2008providesguidanceontheuseofISO5167:2003(allparts).ISO5167:2003isanInternationalStandardforflowmeasurementbasedonthedifferentialpressuregeneratedbyaconstrictionintroducedintoacircularconduit.Itpresentsasetofrulesandrequirementsbasedontheoryandexperimentalworkundertakeninthefieldofflowmeasurement.
【中国标准分类号】:N12
【国际标准分类号】:17_120_10
【页数】:74P.;A4
【正文语种】:英语



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