BS EN 50271-2010 探测和测量易燃气体,有毒气体或氧气的电气装置.使用软件和/或数字技术装置的要求和测试
时间:2024-05-17 03:23:46 来源: 标准资料网 作者：标准资料网 阅读：8271
【英文标准名称】:Electricalapparatusforthedetectionandmeasurementofcombustiblegases,toxicgasesoroxygen.Requirementsandtestsforapparatususingsoftwareand/ordigitaltechnologies
【原文标准名称】:探测和测量易燃气体,有毒气体或氧气的电气装置.使用软件和/或数字技术装置的要求和测试
【标准号】:BSEN50271-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2011-04-30
【实施或试行日期】:2011-04-30
【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】:
【英文主题词】:Burninggases;Computersoftware;Concentration;Constructionrequirements;Definitions;Design;Detectors(circuits);Digitalengineering;Fuelgases;Gasdetectors;Gases;Measurement;Measuringtechniques;Minimumrequirements;Oxygen;Performancetests;Productstandards;Software;Testing;Toxicgases;Toxins;Warningdevices
【摘要】:ThisEuropeanStandardspecifiesminimumrequirementsandtestsforelectricalapparatusforthedetectionandmeasurementofcombustiblegases,toxicgasesoroxygenusingsoftwareand/ordigitaltechnologies.Additionalrequirementsarespecifiedifcompliancewithsafetyintegritylevel1(SIL1)accordingtoEN61508seriesisrequiredforlowdemandmodeofoperation.NOTE1ItisrecommendedtoapplythisEuropeanStandardforapparatususedforsafetyapplicationswithSIL-requirement1insteadofEN50402.However,thetechnicalrequirementsofEN50271andEN50402arethesameforSIL1.NOTE2ForfixedapparatususedforsafetyapplicationswithSIL-requirementshigherthan1EN50402isapplicable.ThisEuropeanStandardisapplicabletofixed,transportableandportableapparatusintendedforuseindomesticpremisesaswellascommercialandindustrialapplications.ThisEuropeanStandarddoesnotapplytoexternalsamplingsystems,ortoapparatusoflaboratoryorscientifictype,ortoapparatususedonlyforprocesscontrolpurposes.ThisEuropeanStandardsupplementstherequirementsoftheEuropeanStandardsforthedetectionandmeasurementofflammablegasesandvapours(e.g.EN60079-29-1,EN50241-1,EN50241-2,EN50194-1,EN50194-2),toxicgases(e.g.EN45544series,EN50291-1,EN50291-2)oroxygen(e.g.EN50104).NOTE3TheseEuropeanStandardswillbementionedinthisEuropeanStandardas"metrologicalstandards".NOTE4TheexamplesaboveshowthestateofthestandardisationforgasdetectionapparatusatthetimeofpublishingthisEuropeanStandard.TheremaybeothermetrologicalstandardsforwhichthisEuropeanStandardisalsoapplicable.ThisEuropeanStandardisaproductstandardwhichisbasedonEN61508series.Itcoverspartofthephase9"realisation"oftheoverallsafetylifecycledefinedinEN61508-1.
【中国标准分类号】:N50
【国际标准分类号】:13_320;29_260_20;71_040_40
【页数】:32P.;A4
【正文语种】:英语
【英文标准名称】:Roadvehicles;Mopeds;Type,locationandfunctionsofcontrols
【原文标准名称】:道路车辆轻便摩托车操纵件的型式、定位和功能
【标准号】:ISO4151-1987
【标准状态】:现行
【国别】:国际
【发布日期】:1987-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC22
【标准类型】:()
【标准水平】:()
【中文主题词】:操纵装置;操纵装置;三轮摩托车;自行车;机动脚踏两用车;规范;手柄;机动脚踏车;定义;布置;设计;特性;道路车辆;摩托车;控制装置
【英文主题词】:
【摘要】:Specifiesthetypeandlocationofcontrolstooperatedifferentfunctionsonmopeds,inordertoreduceerrorinoperatingcontrolsbyriderswhichcouldresultfromdifferentlocationsandtypesofcontrolsondifferentmopeds.Thissecondeditioncancelsandreplacesthefirstedition(1978).
【中国标准分类号】:T80
【国际标准分类号】:43_140
【页数】:2P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforCompositionofTurpentineandRelatedTerpeneProductsbyCapillaryGasChromatography
【原文标准名称】:通过毛细孔气相色谱对松节油和相关的萜烯产品的组成的标准试验方法
【标准号】:ASTMD6387-1999(2010)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:D01.34
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:capillarycolumn;dipentene;gaschromatography;pineoil;turpentine;Pineoil;Terpeneproducts;Turpentine;Capillarygaschromatography;Compositionanalysis--paints/relatedcoatings/materials;Dipentene;Gaschromatography(GC)--paints/relatedcoatin
【摘要】:Earliermethodsforcharacterizingturpentineandrelatedterpeneproductswerebasedonphysicalproperties,suchasthoseinSpecificationD13andTestMethodsD801andD802,andpackedcolumngaschromatographyforthemajorconstituents(forexample,x03B1;-pinene,x03B2;-pinene)asinTestMethod.Asterpeneproductsbecamewidelyusedaschemicalrawmaterial,theseparationandquantitationofcompoundspresentatlowerconcentrationsintheproductbecamemoreimportant.Thecapillarygaschromatographictechniquedescribedinthesetestmethodsisarapidandconvenientmeanstoperformtheseanalyses.1.1Thesetestmethodsdescribethedeterminationoftheamountsofx03B1;-pinene,x03B2;-pinene,dipentene,terpenealcohols,andotherterpenecompoundsinturpentineandrelatedterpeneproductsusingcapillarygaschromatography.Thetwomethodsfordeterminingtheamountoftheindividualterpenecompoundsarethex201C;internalstandardx201D;method,whichyieldsabsolutevalues,andthex201C;areapercentx201D;method,whichyieldsrelativevalues.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthestandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;Overallthistestmethodgivesexcellentrepeatabilitybutonlymoderatereproducibility.Thisgreaterthannormaldifferentialisaconsequenceofthevarietyofgaschromatography(GC)columnsandothervariablesusedbyparticipants.Thesevariables,coupledwiththecomplexcompositionofthetestproducts,enabledsomeworkerstoseparatepeaksthatothersreportedasonepeak;thus,thistestmethodgivesexcellentprecisionwithinagivenlaboratoryonagivenGC.Whenlaboratorytolaboratorycomparisonhavetobemade,however,itisessentialthattheGCoperatingconditionsbedefinedclosely.
【中国标准分类号】:B72
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语