【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-DefinitionandusageofcauseandlocationinDigitalSubscriberSignallingSystemNo.one(DSS1)andSignallingSystemNo.7(SS7)ISDNUserPart(ISUP)-(ITU-TRecommendationQ.850(1998)withaddendummodifi
【原文标准名称】:综合业务数字网(ISDN).数字用户信令系统No.1(DSS1)和No.7综合业务数字网用户部分(ISUP)中起因和位置的定义和用法
【标准号】:NFZ82-485-2005
【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(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Circuitnetworks;Communicationnetworks;Communicationservice;Communicationtechnology;Connectionlines;Definitions;Digital;ETSI;Informationprocessing;Integratedservicesdigitalnetwork;ISDN;Radiosystems;Signaltransmission;Signallingsystems;Subscriber'ssystems;Switchingsystems;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Transmissionprotocol
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_080
【页数】:7P.;A4
【正文语种】:其他


【英文标准名称】:Highefficiencyairfilters(EPA,HEPAandULPA)-Determiningleakageoffilterelements(scanmethod)
【原文标准名称】:高效空气过滤器(EPA,HEPA和ULPA).过滤元件泄漏性测定(扫描法)
【标准号】:BSEN1822-4-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2010-01-31
【实施或试行日期】:2010-01-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气溶胶;空气过滤器;空调系统;无菌室;无菌技术;粒子浓度;计数;定义;排水层;滤波器元件;过滤材料;过滤器;大容量;高效空气尘粒过滤机;泄漏试验;泄漏;材料测试;测量;测量技术;机械工程;方法;颗粒滤器;颗粒;颗粒物质的测定;通风工艺;扫描法;分离效率;分离器;统计学;试验用气雾剂;试验;传动比
【英文主题词】:Aerosols;Airfilters;Air-conditioningsystems;Cleanrooms;Clean-roomtechnology;Concentrationofparticles;Counting;Definitions;Drainagelayers;Filterelements;Filteringmaterials;Filters;Highcapacity;High-efficiencysubmicronparticulateairfilters;Leaktesting;Leaks;Materialstesting;Measurement;Measuringtechniques;Mechanicalengineering;Methods;Particlefilters;Particles;Particulatemattermeasurement;Processventilation;Scanningmethods;Separationefficiency;Separators;Statistics;Testaerosols;Testing;Transmissionratios
【摘要】:ThisEuropeanStandardappliestoefficientairfilters(EPA),highefficiencyairfilters(HEPA)andultralowpenetrationairfilters(ULPA-filters)usedinthefieldofventilationandairconditioningandfortechnicalprocesses,e.g.forapplicationsincleanroomtechnologyorpharmaceuticalindustry.Itestablishesaprocedureforthedeterminationoftheefficiencyonthebasisofaparticlecountingmethodusinganartificialtestaerosol,andallowsastandardizedclassificationofthesefiltersintermsoftheirefficiency.ThispartofEN1822appliestotheleaktestingoffilterelements.Thescanmethodwhichisdescribedindetailregardingprocedure,apparatusandtestconditionsinthebodyofthisstandardisvalidforthecompleterangeofgroupHandUfiltersandisconsideredtobethereferencetestmethodforleakdetermination.The“OilThreadLeakTest”accordingtoAnnexAandthe“0,3μm-0,5μmParticleEfficiencyLeakTest”accordingtoAnnexEmaybeusedalternativelybutfordefinedclassesofgroupHfiltersonly.
【中国标准分类号】:Q76
【国际标准分类号】:13_040_40
【页数】:46P.;A4
【正文语种】:英语