【英文标准名称】:Referencematerials—Generalandstatisticalprinciplesforcertification
【原文标准名称】:参考资料.认证一般原则与统计原则
【标准号】:ISOGUIDE35-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-01-01
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisGuidegivesstatisticalprinciplestoassistintheunderstandinganddevelopmentofvalidmethodstoassignvaluestopropertiesofareferencematerial,includingtheevaluationoftheirassociateduncertainty,andestablishtheirmetrologicaltraceability.Referencematerials(RMs)thatundergoallstepsdescribedinthisGuideareusuallyaccompaniedbyacertificateandcalledacertifiedreferencematerial(CRM).ThisGuidewillbeusefulinestablishingthefullpotentialofCRMsasaidstoensurethecomparability,accuracyandcompatibilityofmeasurementresultsonanationalorinternationalscale.Inordertobecomparableacrossbordersandovertime,measurementsneedbetraceabletoappropriateandstatedreferences.CRMsplayakeyroleinimplementingtheconceptoftraceabilityofmeasurementresultsinchemistry,biologyandphysicsamongothersciencesdealingwithmaterialsand/orsamples.LaboratoriesusetheseCRMsasreadilyaccessiblemeasurementstandardstoestablishtraceabilityoftheirmeasurementresultstointernationalstandards.ThepropertyvaluescarriedbyaCRMcanbemadetraceabletoSIunitsorotherinternationallyagreedunitsduringproduction.ThisGuideexplainshowmethodscanbedevelopedthatwillleadtowellestablishedpropertyvalues,whicharemadetraceabletoappropriatestatedreferences.Itcoversaverywiderangeofmaterials(matrices),rangingfromgasmixturestobiologicalmaterials,andaverywiderangeofproperties,rangingfromchemicalcompositiontophysicalandimmunoassayproperties.TheapproachesdescribedinthisGuidearenotintendedtobecomprehensiveineveryrespectoftheproductionofanRMandtheestablishmentofitspropertyvalues,includingtheassociateduncertainties.TheapproachesgiveninthisGuidecanberegardedasmainstreamapproachesfortheproductionandvalueassignmentoflargegroupsofRMs,butappropriateamendmentscanbeneededinaparticularcase.Thestatisticalmethodsdescribedexemplifytheoutlinedapproaches,andassume,e.g.,normallydistributeddata.Inparticularwhendataaredefinitelynotnormallydistributed,otherstatisticalmethodsmaybepreferredtoobtainvalidpropertyvaluesandassociateduncertainties.ThisGuidedescribesingeneraltermsthedesignofprojectstoproduceaCRM.
【中国标准分类号】:G60
【国际标准分类号】:71_040_30
【页数】:72P.;A4
【正文语种】:英语


【英文标准名称】:SpecificationforCoal-TarPitchforRoofing,DampProofing,andWaterproofing
【原文标准名称】:在微波频率和1650℃时固体电绝缘材料复合介电常数的测试方法
【标准号】:ASTMD252-1927
【标准状态】:作废
【国别】:
【发布日期】:1927
【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】:
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:电缆;容许的;电气试验;试验;电绝缘材料;绝缘;电气工程;电绝缘
【英文主题词】:
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:
【页数】:
【正文语种】: