【英文标准名称】:Waterquality—Determinationoftritiumactivityconcentration—Liquidscintillationcountingmethod
【原文标准名称】:水质.硫活性浓度的测定方法.液体闪烁计数法
【标准号】:ISO9698-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-12-15
【实施或试行日期】:2010-12-15
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Activityconcentration;Analysis;Determinationofcontent;Liquidscintillationcounting;Mathematicalcalculations;Quality;Radionuclides;Samplingmethods;Testing;Tritium;Water;Wateranalysis;Waterquality;Watertesting
【摘要】:WARNING—ThisInternationalStandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheusertoestablishappropriatesafetyandhealthpracticesandtoensurecompliancewithanynationalregulatoryconditions.IMPORTANT—ItisabsolutelyessentialthattestsconductedaccordingtothisInternationalStandardbecarriedoutbysuitablytrainedstaff.ThisInternationalStandardspecifiestheconditionsforthedeterminationoftritiumactivityconcentrationinsamplesofenvironmentalwateroroftritiatedwater([3H]H2O)usingliquidscintillationcounting.Thechoiceoftheanalyticalprocedure,eitherwithorwithoutdistillationofthewatersamplepriortodetermination,dependsontheaimofthemeasurementandthesamplecharacteristics(seeReferences).Directmeasurementofarawwatersampleusingliquidscintillationcountinghastoconsiderthepotentialpresenceofotherbetaemitterradionuclides.Toavoidinterferencewiththeseradionuclideswhentheyaredetected,thequantificationoftritiumwillbeperformedfollowingthesampletreatmentbydistillation(seeReferences).ThreedistillationproceduresaredescribedinAnnexesB,DandE.Themethodisnotapplicabletotheanalysisoforganicallyboundtritium;itsdeterminationrequiresadditionalchemicalprocessing(suchaschemicaloxidationorcombustion).Withsuitabletechnicalconditions,thedetectionlimitmaybeaslowas1Bql?1.Tritiumactivityconcentrationsbelow106Bql?1canbedeterminedwithoutanysampledilution.Apriorenrichmentstepcansignificantlylowerthelimitofdetection(seeReferences).
【中国标准分类号】:
【国际标准分类号】:13_060_60;13_280
【页数】:32P.;A4
【正文语种】:英语


【英文标准名称】:Switchesforhouseholdandsimilarfixedelectricalinstallations-Collateralstandard-Switchesandrelatedaccessoriesforuseinhomeandbuildingelectronicsystems(HBES).
【原文标准名称】:家用和类似用途固定电气设备用开关.并列标准.家用和建筑物电子系统(HBES)用开关和相关附件
【标准号】:NFC61-105-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-09-01
【实施或试行日期】:2005-09-20
【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】:K31
【国际标准分类号】:29_120_40;97_120
【页数】:45P;A4
【正文语种】:其他