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【英文标准名称】:Explosiveatmospheres-Part29-1:Gasdetectors—Performancerequirementsofdetectorsforflammablegases
【原文标准名称】:爆炸性环境.第29-1部分:气体探测器.易燃气体探测器的性能要求
【标准号】:BSEN60079-29-1-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2008-01-31
【实施或试行日期】:2008-01-31
【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】:燃烧气体;浓缩;团料;定义;检波器(回路);电器;电气工程;防爆;爆炸安全;爆炸性环境;防火安全;可燃性环境;易燃材料;气体浓度;气体测量仪器;气体混合物;极限(数学);测量;测量仪器;参数;工作性能;潜在爆炸物;性能;安全工程;规范(验收);火焰表面传播;试验设备;测试;蒸气压力;蒸气
【英文主题词】:Burninggases;Concentration;Conglomerates;Definition;Definitions;Detectors(circuits);Electricalappliances;Electricalengineering;Explosionprotection;Explosionsecurity;Explosiveatmospheres;Firesafety;Flammableatmospheres;Flammablematerials;Gasconcentrations;Gasmeasuringinstruments;Gasmixtures;Limits(mathematics);Measurement;Measuringinstruments;Parameters;Performanceinservice;Potentiallyexplosivematerials;Properties;Safetyengineering;Specification(approval);Surfacespreadofflame;Testequipment;Testing;Vapourpressure;Vapours
【摘要】:ThispartofIEC60079-29specifiesgeneralrequirementsforconstruction,testingandperformance,anddescribesthetestmethodsthatapplytoportable,transportableandfixedapparatusforthedetectionandmeasurementofflammablegasorvapourconcentrationswithair.Theapparatus,orpartsthereof,areintendedforuseinpotentiallyexplosiveatmospheres(see3.1.8)andinminessusceptibletofiredamp.Thisstandardisalsoapplicablewhenanapparatusmanufacturermakesanyclaimsregardinganyspecialfeaturesofconstructionorsuperiorperformancethatexceedtheseminimumrequirements.Inthesecases,allsuchclaimsshouldbeverifiedandthetestproceduresshouldbeextendedorsupplemented,wherenecessary,toverifytheperformanceclaimedbythemanufacturer.Whenverifyingthesuperiorperformanceofonecriterion,otherperformancecriteriaarenotrequiredtomeetthestandardsminimumrequirements,however,thesereducedclaimedperformancecriteria(asconfirmedinthemanufacturesInstallationManual)shouldalsobeverified.(e.g.temperaturerangeof0°Cto60°C;0°Cto40°Cat±10%accuracyand40°Cto60°Cat±15%(manufacturersclaimedaccuracy).Theadditionaltestsshouldbeagreedbetweenthemanufacturerandtestlaboratoryandidentifiedanddescribedinthetestreport.Thisstandardisapplicabletoflammablegasdetectionapparatusintendedtoprovideanindication,alarmorotheroutputfunction;thepurposeofwhichistogiveawarningofapotentialexplosionhazardandinsomecases,toinitiateautomaticormanualprotectiveaction(s).Thisstandardisapplicabletoapparatus,includingtheintegralsamplingsystemsofaspiratedapparatus,intendedtobeusedforcommercial,industrialandnon-residentialsafetyapplications.Thisstandarddoesnotapplytoexternalsamplingsystems,ortoapparatusoflaboratoryorscientifictype,ortoapparatususedonlyforprocesscontrolpurposes.Italsodoesnotapplytoopenpath(lineofsight)areamonitors.Forapparatususedforsensingthepresenceofmultiplegases,thisstandardappliesonlytothedetectionofflammablegasorvapour.ThisstandardsupplementsandmodifiesthegeneralrequirementsofIEC60079-0.WherearequirementofthisstandardconflictswitharequirementofIEC60079-0,therequirementofIEC60079-29-1willtakeprecedence.
【中国标准分类号】:C81;N56
【国际标准分类号】:13_320;29_260_20
【页数】:54P.;A4
【正文语种】:英语


【英文标准名称】:Fasteners-Electroplatedcoatings(ISO4042:1999);GermanversionENISO4042:1999
【原文标准名称】:紧固件.电镀层(ISO4042:1999)
【标准号】:ENISO4042-1999
【标准状态】:现行
【国别】:
【发布日期】:2001-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:名称与符号;铜合金;覆层;螺纹紧固件;元部件;自攻丝螺钉;螺纹零件;测量;电连接;钢;紧固件;电镀;电镀;防腐蚀;木螺丝;螺钉;顺序示度;电流的;螺纹;电解镀层;电解镀层;厚度;规范(验收);金属覆层;材料;规范;覆层厚度;定义
【英文主题词】:Coatingthickness;Coatings;Components;Copperalloys;Corrosionprotection;Definition;Definitions;Designations;Electricalconnections;Electrodepositedcoatings;Electrodeposition;Electroplating;Fasteners;Galvanic;Galvanization;Materials;Measurement;Metalcoatings;Orderindications;Screws(bolts);Self-tappingscrews;Specification(approval);Specifications;Steels;Thickness;Threadedcomponents;Threadedfasteners;Threads;Woodscrews
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_01;25_220_40
【页数】:26P.;A4
【正文语种】:英语