【英文标准名称】:Specificationforinsulatingandsheathingmaterialsforcables.Elastomericinsulatingcompounds.XLPE
【原文标准名称】:电缆绝缘和铠装材料规范.第1部分:绝缘合成橡胶.第3节:XLPE
【标准号】:BS7655-1.3-1993
【标准状态】:作废
【国别】:英国
【发布日期】:1993-04-15
【实施或试行日期】:1993-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电绝缘;断裂伸长;温度;老化;合成橡胶;交联材料;绝缘电缆;电绝缘材料;弹性体;吸水率;聚乙烯;试验条件;电阻;抗拉强度;电缆;抽样方法;电缆护套;固体绝缘材料;护套电缆;性能
【英文主题词】:
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_035_20
【页数】:6P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforChemicalAnalysisofGlassSand
【原文标准名称】:玻璃沙化学分析的标准试验方法
【标准号】:ASTMC146-1994a(2004)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:C14.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化学分析和试验;玻璃;石英砂;试验
【英文主题词】:chemicalanalysis;glasssand;refereeanalysis;routineanalysis
【摘要】:Thesetestmethodscanbeusedtoensurethatthechemicalcompositionoftheglasssandmeetsthecompositionalspecificationrequiredforthisrawmaterial.Thesetestmethodsdonotprecludetheuseofothermethodsthatyieldresultswithinpermissiblevariations.Inanycase,theanalystshouldverifytheprocedureandtechniqueusedbymeansofaNationalInstituteofStandardsandTechnology(NIST)standardreferencematerialorothersimilarmaterialofknowncompositionhavingacomponentcomparablewiththatofthematerialundertest.AlistofstandardreferencematerialsisgivenintheNISTSpecialPublication260,currentedition.1.1Thesetestmethodscoverthechemicalanalysisofglasssands.Theyareusefulforeitherhigh-silicasands(99%+silica(SiO))orforhigh-aluminasandscontainingasmuchas12to13%alumina(AlO).Generallynonclassical,thetestmethodsarerapidandaccurate.TheyincludethedeterminationofsilicaandoftotalRO(see11.2.4),andtheseparatedeterminationoftotalironasironoxide(FeO),titania(TiO),chromiumoxide(CrO),zirconia(ZrO),andignitionloss.Includedareproceduresforthealkalineearthsandalkalies.High-aluminasandsmaycontainasmuchas5to6%totalalkaliesandalkalineearths.Itisrecommendedthatthealkaliesbedeterminedbyflamephotometryandthealkalineearthsbyabsorptionspectrophotometry.1.2Thesetestmethods,iffollowedindetail,willprovideinterlaboratoryagreementofresults.Note1-Foradditionalinformation,seeTestMethodsC169andPracticesE50.1.3Thetestmethodsappearinthefollowingorder:ProceduresforRefereeAnalysis:SectionSilica(SiO2)--DoubleDehydration10TotalR2O3--Gravimetric11Fe2O3,TiO2,ZrO2,Cr2O3,byPhotometricMethodsand12-17Al2O3byComplexiometricTitrationPreparationoftheSampleforDeterminationofIron12Oxide,Titania,Alumina,andZirconiaIronoxide(asFe2O3)by1,10-PhenanthrolineMethod13Titania(TiO2)bytheTironMethod14Alumina(Al2O3)bytheCDTATitrationMethod15Zirconia(ZrO2)bythePyrocatecholVioletMethod16ChromiumOxide(Cr2O3)bythe1,5-Diphenylcarbo-17hydrazideMethodProceduresforRoutineAnalysis:Silica(SiO2)--SingleDehydration19Al2O3,CaO,andMgO--AtomicAbsorptionSpectro-20-25photometryNa2OandK2O--FlameEmissionSpectrophotometry26-27LossonIgnition(LOI)281.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q33
【国际标准分类号】:81_040_10
【页数】:12P.;A4
【正文语种】: