ASTM E2626-2008e1 反应性难熔金属光谱测定分析标准指南

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【英文标准名称】:StandardGuideforSpectrometricAnalysisofReactiveandRefractoryMetals
【原文标准名称】:反应性难熔金属光谱测定分析标准指南
【标准号】:ASTME2626-2008e1
【标准状态】:现行
【国别】:
【发布日期】:2008
【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】:E01.06
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:AA;AAS;AES;合金;弧光;AS-AES;原子吸收;原子发射;DCP-AES;直流电等离子体;火焰原子吸收光谱法(FAAS);GD-AES;GD-MS;辉光放电;铪;感应耦合等离子体(ICP);ICP-MS;电感耦合等离子体;质谱分析法;质谱学;钼;铌;活性金属;高熔点金属;火花;光谱测定法;钽;钨;钒;X射线发射;XRF;锆;材料测试;难熔金属/合金;光谱光度学
【英文主题词】:AA;AAS;AES;alloys;arc;AS-AES;atomicabsorption;atomicemission;DCP-AES;directcurrentplasma;FAAS;GD-AES;GD-MS;glowdischarge;hafnium;ICP;ICP-MS;inductivelycoupledplasma;inductivelycoupledplasma-massspectrometry;massspectrometry;
【摘要】:Testmethodsforchemicalanalysisofreactiveandrefractorymetalsareprimarilyintendedtotestsuchmaterialsforcompliancewithcompositionalspecifications.Itisassumedthatallwhousethisguidewillbetrainedanalystscapableofperformingcommonlaboratoryproceduresskillfullyandsafely.ItisexpectedthatworkwillbeperformedinaproperlyequippedlaboratoryunderappropriatequalitycontrolpracticessuchasthosedescribedinGuideE882andPracticeE2437,aswellasinISO17025andISOGuide32.Thisguideisintendedtoaidanalyticalchemistrylaboratoriesintheanalysisofreactiveandrefractorymetalsandtheiralloyswhennospecificstandardtestmethodsareavailable.Theprinciplesincorporatedinthispracticecanalsobeappliedinlaboratoriesthatwishtovalidateanddocumentnon-standardtestmethods.Theanalysisofreactiveandrefractorymaterialsistypicallyperformedbyonlyasmallnumberoflaboratories.Fewoftheselaboratorieshaveanalyticalinstrumentationincommonforuseininterlaboratoryproficiencytestingprograms.Thisrequirestheuseofwithin-laboratorydevelopedtestmethodsthatvarybetweenlaboratories.Itisintendedthatthispracticewillgivegeneralguidancetoexperiencedpersonnelthatwillassisttheminthedevelopmentofaprocedurethatwillmeettheiranalyticalobjectives.PracticeE2438providesguidanceforthedevelopmentanddocumentationofanIn-HouseStandardOperatingProcedure(SOP).1.1Thisguidecoversavarietyofanalyticaltechniquesthathaveproventobeacceptablefortheanalysisofthereactiveandrefractorymetalstitanium,zirconium,niobium,hafnium,tantalum,molybdenum,tungsten,andvanadium.1.2TheprinciplesandtechniquesinthisguidecanbeusedbyISO17025compliantlaboratoriesthatneedtoimplementotherperformance-basedtestmethodsorneedtodocumentandvalidateextensionsofstandardtestmethods,ornon-standardtestmethods.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H10
【国际标准分类号】:77_040_30
【页数】:6P.;A4
【正文语种】:


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基本信息
标准名称:750kV电力系统继电保护技术导则
替代情况:替代DL/Z 886-2004
发布部门:国家能源局
发布日期:2012-04-06
实施日期:2012-07-01
首发日期:
作废日期:
出版社:中国电力出版社
出版日期:2012-07-01
适用范围

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所属分类: 公路 水路运输 交通管理 交通管理综合 社会学 服务 公司(企业)的组织和管理 行政 运输 运输 道路运输
【英文标准名称】:QualityAssuranceforFasteners
【原文标准名称】:紧固件的质量保证
【标准号】:ANSI/ASMEB18.18-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【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】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;重型机械;检验;锁定装置及定位装置;米制的;质量;质量保证;质量保证体系;抽样方案;试验
【英文主题词】:Fasteners;Heavymachine;Inspection;Lockingandlocatingdevices;Metric;Quality;Qualityassurance;Qualityassurancesystems;Samplingplan;Testing
【摘要】:ThisqualityfocusedStandardestablishesin-processandfinalinspectionrequirementsforfastenerproductsaswellasareceivinginspectionplanforfastenerpurchasers.TheStandardidentifiesfourcategories,recognizingthatfastenerusershavewidelyvaryingrequirements.Inthepreparationofthisstandarditwasrecognizedthatitsfunctionmustenableittobeapartofthevariousregimensinusetodaythatattaincertainqualitylevelsofproducts.Thisstandardwaswrittentoencompassframeworksthatenabletheusertopinpointwhichapproachtheywishtouseinmeetingtheirownobjectives.ThisstandardplacesaC=0expectationsonthesampleplansshownherein,andthesamplesizesaresmallerforthatreason.Howeveritshouldberecognizedthatzerononconformitiesinasamplingdoesnotnecessarilymeanthatthepopulationwasentirelyfreeofdefects.ThisstandardrecognizesthatsomewellestablishedstandardsmaycontinuetouseC=1orhigheracceptancenumbers,andthattheirsamplesizesarehigherasaresult.Whentheconsumerpreferstousethoseplansthatconstitutetheirrequirements,theirplanscansupersedethesamplesizesherein.HoweverthequalityexpectationofC=0isstillrequired.Statisticalprocesscontrolandothervariationloweringmeasurescansignificantlyreducethenumberofnonconformitiesinthepopulationthatmaybeproduced,butitshouldbenotedthatstatisticalindicesonlyimplythequalitylevelproduced,andimproperlyappliedstatisticaltreatmentswillimplythepresenceofnonconformitiesthatarenotpresent,ormisssomedeficienciesaltogether.Theclosestthatonecanapproachthezeropopulationdeficienciesstateisin100%partperpartexamination,butagaincautionmustbeexercised.Thegoalofzeroherecanbeintractableand-thecomplexityofresourcesrequired,-thelimitationsoftheavailableequipmentforeachverifiedcharacteristic,-thestringencyofcontrolsrequired,willonlybeabletodemonstratequalityonapartspermillionbasis,andnotnecessarilyanyassuranceofzerodeficiencies.
【中国标准分类号】:J13
【国际标准分类号】:21_060_01
【页数】:
【正文语种】:英语