DIN EN 727-1995 塑料管道和管道输送系统.热塑塑料管和管件.维卡软化温度(VST)的测定;德文版本EN727:1994

上一篇: BS EN ISO 1622-1-2000 塑料.聚苯乙烯(PS)模塑和挤塑材料.命名体系和基本规范
下一篇: EN 727-1994 塑料管道和管道输送系统.热塑塑料管和管件.维卡软化温度(VST)的测定;德文版本EN727:1994

【英文标准名称】:GeometricalProductSpecifications(GPS)-Surfacetexture:Profilemethod-Calibrationofcontact(stylus)instruments
【原文标准名称】:产品几何量技术规范(GPS)表面结构:轮廓法接触(触针)式仪器的校准
【标准号】:ISO12179-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-03
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC213
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;规范(验收);定义;特性;尺寸;几何的;控制样品;接触式尖笔记录仪;波纹;粗糙度(表面);卡尺;测量技术;外形;粗糙度;几何;精整;仪表;产品规范;表面粗糙度测定;规范;校正;作标记;几何产品规范;针式仪器法;测量仪器;表面
【英文主题词】:Calibration;Calipers;Contactstylusinstruments;Controlsamples;Definitions;Dimensions;Finishes;Geometric;Geometricalproductspecification;Geometry;GPS;Marking;Measuringinstruments;Measuringtechniques;Meters;Productspecifications;Profile;Properties;Ripple;Roughness;Roughness(surface);Specification(approval);Specifications;Stylusinstrumentmethod;Surface-roughnessmeasurement;Surfaces;Testing
【摘要】:ThisInternationalStandardappliestothecalibrationofthemetrologicalcharacteristicsofcontact(stylus)instrumentsforthemeasurementofsurfacetexturebytheprofilemethodasdefinedinISO3274.Thecalibrationistobecarriedoutwiththeaidofmeasurementstandards.AnnexBappliestothecalibrationofmetrologicalcharacteristicsofsimplifiedoperatorcontact(stylus)instrumentswhichdonotconformwithISO3274.
【中国标准分类号】:J04
【国际标准分类号】:17_040_30
【页数】:17P;A4
【正文语种】:英语


【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