ASTM D 3977-1980 水样品中悬浮沉积浓缩物的试验方法

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【英文标准名称】:Gasmeters.Conversiondevices.Volumeconversion
【原文标准名称】:煤气表.换算装置.体积换算
【标准号】:BSEN12405-1-2005+A2-2010
【标准状态】:现行
【国别】:英国
【发布日期】:2005-06-28
【实施或试行日期】:2005-06-28
【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】:一致性;合格测试;定义(术语);设计;电气工程;电子仪器;电子测量装置;煤气表;燃气技术;燃气表;仪表用变压器;作标记;测量范围;压力;压力变送器;生产;定量测定;数量转换;实际油气比;安全性;规范(验收);温度;试验;中继器;发射机;体积
【英文主题词】:Conformity;Conformitytesting;Definitions;Design;Electricalengineering;Electronicinstruments;Electronicmeasuringdevices;Gasmeters;Gastechnology;Gas-supplymeters;Instrumenttransformers;Marking;Measuringranges;Pressure;Pressuretransmitter;Production;Quantitativemeasurement;Quantitytranslators;Realgasfactors;Safety;Specification(approval);Temperature;Testing;Translators;Transmitters;Volume
【摘要】:ThisEuropeanStandardspecifiestherequirementsandtestsfortheconstruction,performance,safetyandconformityofgas-volumeelectronicconversiondevicesassociatedtogasmeters,usedtomeasurevolumesoffuelgasesofthe1stand2ndfamiliesaccordingtoEN437.ThisEuropeanStandardisintendedfortypetesting,thedetailedrelevantprovisionsofwhicharegiveninAnnexA.OnlythreekindsofconversionaretreatedinthisEuropeanStandard:?conversionasafunctionoftemperatureonly(calledTconversion);?conversionasafunctionofthepressureandofthetemperaturewithconstantcompressionfactor(calledPTconversion);?conversionasafunctionofthepressure,thetemperatureandtakingintoaccountthecompressionfactor(calledPTZconversion).Thisdocumentisnotrelevanttotemperatureconversionintegratedintogasmeterswhichonlyindicatetheconvertedvolume.EN12405-2forenergyconversionisinpreparation.Gas-volumeconversiondevicesconsistofacalculatorandatemperaturetransduceroracalculator,atemperaturetransducerandapressuretransducerlocallyinstalled.ForapplicationofthisEuropeanStandard,aconversiondevicemaybe,asachoiceofthemanufacturer,consideredasacompleteinstrument(Type1)ormadeofseparateelements(Type2),accordingtothedefinitionsgivenin3.1.18.1and3.1.18.2.Inthislastcase,theprovisionsconcerningpressuretransducers,temperaturesensorsandtemperaturetransducersaregiveninAnnexesB,CandDrespectively.Anyconversiondevicecanprovideanerrorcurvecorrectionforagasmeter.NOTEWhenrenderinganaccounttoanenduserthereadingsfromtheconversiondevicecanbeusedinconjunctionwiththereadingsfromagasmeterconformingtoEN1359,EN12480,orEN12261,asappropriate,ortoanyotherappropriateandrelevantinternationalornationalstandardforgasmeters,withoutprejudiceofnationalregulations.
【中国标准分类号】:Q82
【国际标准分类号】:91_140_80
【页数】:114P.;A4
【正文语种】:英语


【英文标准名称】:IdentificationofHerpesSimplexVirusorItsDNA
【原文标准名称】:热疮病毒或它的脱氧核糖核酸的识别
【标准号】:ASTME1286-1989
【标准状态】:作废
【国别】:美国
【发布日期】:1989
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:医学科学;微生物;识别;病毒
【英文主题词】:viruses;microorganisms;medicalsciences;identification
【摘要】:
【中国标准分类号】:C05
【国际标准分类号】:07_100_10
【页数】:3P;A4
【正文语种】:英语