【英文标准名称】:ULStandardforSafetyCompressedGasRegulatorAccessoriesCOMMENTSDUE:APRIL7,2008
【原文标准名称】:压缩气体调压部件UL安全性标准.评议提交截止日期:2008年4月7日
【标准号】:UL252ABULLETIN-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-02-22
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:herequirementscoverregulatorsusedtoreducethepressureofcompressedindustrialgasesfromasourceorstoragecylinderpressureofnotmorethan5500psig(37.91MPa)totheusepressure.Regulatorscoveredbytheserequirementsareintendedforusewithcompressedgasessuchasair,carbondioxide,inertgases,fuelgases,nitrogen,nitrogenoxide,andoxygen.Regulatorsforwelding,cutting,andheatingoperationsareintendedforuseinaccordancewiththeStandardfortheDesignandInstallationofOxygen-FuelGasSystemsforWelding,Cutting,andAlliedProcesses,NFPA51-1992.
【中国标准分类号】:J16
【国际标准分类号】:23_060_40
【页数】:
【正文语种】:英语


【英文标准名称】:Acceptancesamplingproceduresforinspectionbyattributes-Accept-zerosamplingsystembasedoncreditprincipleforcontrollingoutgoingquality
【原文标准名称】:计数检验用验收抽样程序.基于控制出厂质量用的信用原则的验收零抽样系统
【标准号】:BS6001-7-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-02-08
【实施或试行日期】:2006-02-08
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:合格性;检验质量极限;验收;验收(鉴定);总量;合格质量级值;批量大小;批量测试;批量;特征;消费者与供货者的关系;缺陷;定义;误差;检测;计数检查;规程;质量保证;质量控制;质量管理;随机试样;样品试验;抽样方法;抽样表;统计方法分析;统计质量控制;统计学;测试;单位
【英文主题词】:
【摘要】:1.1ThisInternationalStandardspecifiesasystemofsinglesamplingschemesforlot-by-lotinspectionbyattributes.Allthesamplingplansofthepresentsystemareofaccept-zeroform,i.e.nolotisacceptedifthesamplefromitcontainsoneormorenonconformingitems.Theschemesdependonasuitably-definedaverageoutgoingqualitylimit(AOQL),thevalueofwhichischosenbytheuser;norestrictionsareplacedonthechoiceofthevalueoftheAOQLoronthesizesofsuccessivelotsintheseries.Themethodologyensuresthattheoverallaveragequalityreachingthecustomerormarket-placewillnotexceedtheAOQLinthelongrun.1.2Theschemesareintendedtoinduceasupplier,throughtheeconomicandpsychologicalpressureoflotnon-acceptanceandconsequentlossofaccumulatedcredit,toattempttomaintainanonconformity-freeprocess,whileassuring,bymeansofthelowestpracticablesamplesizes,thatthelong-termpercentageofnonconformingitemsdeliveredtothecustomerormarket-placedoesnotexceedtheAOQL.Thisobjectiveisachievedbyaprogressivereductioninthesamplesizeinresponsetogoodqualityhistory.1.3Theschemesaredesignedtobeappliedtoaseriesoflotsfromeachsupplier.Thecreditprincipleprovides:a)automaticprotectiontothecustomerifadeteriorationinqualityisdetected,bymeansofatotallossofaccumulatedcreditandreversiontoarelativelylargesamplesizewheneveranonconformingitemisfound,and100%inspectionof1)thefirstlotifitisnotaccepted,or2)anynon-acceptedlotthatimmediatelyfollowsanon-acceptedlot;b)anincentivetoreducesamplingcosts(bymeansofaprogressivereductioninrequiredsamplesize)ifconsistentlygoodqualityisachieved.1.4ThisInternationalStandardisdesignedforuseunderthefollowingconditions:a)wheretheinspectionprocedureistobeappliedtoaseriesoflotsofdiscreteitemsthatareintendedtobeidentical,andwhichareallsuppliedbyoneproducerusingoneproductionprocess(Iftherearedifferentproducersorproductionprocesses,thisInternationalStandardisintendedtobeappliedtoeachoneseparately.);b)whereoneormorequalitycharacteristicsoftheseproductsaretakenintoconsideration,whichmustallbeclassifiableaseitherconformingornonconforming;c)wheretheinspectionerrorinvolvedinclassifyingthestateofaproduct'squalitycharacteristic(s)isnegligible;d)whereinspectionisnon-destructive.ThisInternationalStandardcanbesuitableforregulatorypurposes,ascontroloftheexpectedqualityofitemsreachingthemarket-placeisachievedwiththesmallestpossiblesamplesizes,andlong-termcontroloftherealized,oractualqualitylevelinthemarket-placeisachievedwithcertainty,regardlessofhowlongorshortindividualsuppliers'seriesmaybe.ThisInternationalStandardcanbeusedbysuppliers/producers,buyers/consumersandregulatoryagenciestoprovidecontroloftheexpectedqualityofthetotalityofacceptedproductofeachtypefromeachsource.
【中国标准分类号】:A41
【国际标准分类号】:03_120_30
【页数】:16P;A4
【正文语种】:英语