NF E27-458-1966 球形支承面螺母.(直径4到36mm)
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【英文标准名称】:Nutswithsphericalbearingsurface.
【原文标准名称】:球形支承面螺母.(直径4到36mm)
【标准号】:NFE27-458-1966
【标准状态】:作废
【国别】:法国
【发布日期】:1966-03-01
【实施或试行日期】:1966-03-01
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;名称与符号;球面座螺母;球形;螺母;规范
【英文主题词】:
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:1P;A4
【正文语种】:其他
【英文标准名称】:Roadtankersinreinforcedplastic.Chemicalcompatibilitytest.
【原文标准名称】:增强塑料公路油槽车.化学兼容性试验
【标准号】:NFM88-326-1981
【标准状态】:作废
【国别】:法国
【发布日期】:1981-12-01
【实施或试行日期】:1981-12-03
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:T58
【国际标准分类号】:23_020_20;13_300
【页数】:3P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforDeterminationofPhenolicAntioxidantsandErucamideSlipAdditivesinPolypropyleneHomopolymerFormulationsUsingLiquidChromatography(LC)
【原文标准名称】:用液相色谱法对聚丙烯均聚物配方中酚醛抗氧化剂和酰胺纤维润滑添加剂测定的标准试验方法
【标准号】:ASTMD6042-2004
【标准状态】:作废
【国别】:
【发布日期】:2004
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:有机化合物;化工技术;液相色谱法;化学分析和试验;试验
【英文主题词】:additive;antioxidants;erucamideslip;extraction;Irgafos168;Irganox1010;Irganox1076;Irganox3114;liquidchromatography(LC);polypropylene(PP);vitaminE
【摘要】:Separationandidentificationofstabilizersusedinthemanufactureofpolypropyleneisnecessaryinordertocorrelateperformancepropertieswithpolymercomposition.Thistestmethodprovidesameanstodetermineerucamideslip,VitaminE,Irgafos168,Irganox3114,Irganox1010,andIrganox1076levelsinpolypropylenesamples.Thistestmethodisalsoapplicableforthedeterminationofotherantioxidants,suchasUltranox626,Ethanox330,SantanoxR,andBHT,buttheapplicabilityofthistestmethodhasnotbeeninvestigatedfortheseantioxidants.Theadditive-extractionprocedureismadeeffectivebytheinsolubilityofthepolymersampleinsolventsgenerallyusedforliquidchromatographicanalysis.Underoptimumconditions,thelowestlevelofdetectionforaphenolicantioxidantisapproximately2ppm.Note28212;Othermethodsthathavebeenusedsuccessfullytoremoveadditivesfromtheplasticsmatrixincludethinfilm,microwave,ultrasonic,andsupercriticalfluidextractions.OthermethodshavebeenusedsuccessfullytoseparateadditivesincludingSFCandcapillaryGC.Irgafos168isaphosphiteantioxidant.Phosphitesareknowntoundergobothoxidationandhydrolysisreactions.LessIrgafos168maybeseeninthepolymerthanoriginallyaddedtothepolymerduetooxidationduringprocessing.TheHPLCseparationiscapableofseparatingthephosphite,phosphate(oxidationproduct),andhydrolysisproductandquantifythemifstandardsareobtained.Nosignificantbreakdownofthephosphiteantioxidanthasbeenseenduetoeitherextractiontechniqueortheseparationpresentedinthisstandard.1.1Thistestmethodcoversaliquid-chromatographicprocedurefortheseparationofsomeadditivescurrentlyusedinpolypropylene.Theseadditivesareextractedwithacyclohexane:methylenechloridemixtureusingeitherrefluxorultrasonicbathpriortoliquid-chromatographicseparation.Theultravioletabsorbence(200nm)ofthecompound(s)ismeasured,andquantitationisperformedusingtheinternalstandardmethod.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection9.Note1-ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G17
【国际标准分类号】:71_040_50;83_080_20
【页数】:5P.;A4
【正文语种】:
