【英文标准名称】:Naturalgas-Calculationofcompressionfactor-Part1:Introductionandguidelines(ISO12213-1:1997);GermanversionENISO12213-1:2005
【原文标准名称】:天然气.压缩因子的计算.第1部分:说明和指南
【标准号】:DINENISO12213-1-2005
【标准状态】:作废
【国别】:德国
【发布日期】:2005-09-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:天然气;材料试验;压缩;一般条件;团料;实际油气比;混合气体;引入线;浓度(化学);压实;指导手册;定义;数学计算;计算方法;压缩气体
【英文主题词】:Calculatingmethods;Compacting;Compressedgas;Compression;Concentration(chemical);Conglomerates;Definitions;Entries;Gasmixtures;Generalconditions;Guidebooks;Materialstesting;Mathematicalcalculations;Naturalgas;Realgasfactors
【摘要】:ThisInternationalStandardspecifiesmethodsforthecalculationofcompressionfactorsofnaturalgases,naturalgasescontainingasyntheticadmixtureandsimilarmixturesatconditionsunderwhichthemixturecanexistonlyasagas.Thestandardisinthreeparts:part1givesanintroductionandprovidesguidelinesforthemethodsofcalculationdescribedinparts2and3.Part2givesamethodforusewherethedetailedmolarcompositionofthegasisknown.Part3givesamethodforusewherealessdetailedanalysis,comprisingsuperiorcalorificvalue(volumetricbasis),relativedensity,carbondioxidecontentand(ifnon-zero)hydrogencontent,isavailable.Bothmethodsareapplicabletodrygasesofpipelinequalitywithintherangeofconditionsunderwhichtransmissionanddistribution,includingmeteringforcustodytransferorotheraccountingpurposes,arenormallycarriedout.Ingeneral,suchoperationstakeplaceattemperaturesbetweenabout263Kand338K(approximately-10~Cto65~C)andpressuresnotexceeding12MPa(120bar).Withinthisrange,theuncertaintyofpredictionofbothmethodsisabout_+0,1%providedthattheinputdata,includingtherelevantpressureandtemperature,havenouncertainty.NOTE--PipelinequalitygasisusedinthisInternationalStandardasaconcisetermforgaswhichhasbeenprocessedsoastobesuitableforuseasindustrial,commercialordomesticfuel.Althoughthereisnoformalinternationalagreementuponthecompositionandpropertiesofagaswhichcomplieswiththisconcept,somequantitativeguidanceisprovidedin5.1.1.Adetailedgasqualityspecificationisusuallyamatterforcontractualarrangementsbetweenbuyerandseller.Themethodgiveninpart2isalsoapplicable(withincreaseduncertainty)tobroadercategoriesofnaturalgas,includingwetorsourgases,withinawiderrangeoftemperaturesandtohigherpressures,forexampleatreservoirorundergroundstorageconditionsorforvehicular(NGV)applications.Themethodgiveninpart3isapplicabletogaseswithahighercontentofnitrogen,carbondioxideorethanethannormallyfoundinpipelinequalitygas.Themethodmayalsobeappliedoverwiderrangesoftemperatureandpressurebutwithincreaseduncertainty.Forthecalculationmethodsdescribedtobevalid,thegasmustbeaboveitswaterandhydrocarbondewpointsattheprescribedconditions.Thestandardgivesalloftheequationsandnumericalvaluesneededtoimplementbothmethods.Verifiedcomputerprogrammesareavailable(seeannexB).
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:14P.;A4
【正文语种】:德语


【英文标准名称】:Tennisrackets-Racketcomponentsandphysicalparameters
【原文标准名称】:网球拍网球拍的部件和物理参数
【标准号】:ISO11416-1995
【标准状态】:现行
【国别】:国际
【发布日期】:1995-06
【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/TC83
【标准类型】:()
【标准水平】:()
【中文主题词】:物理性能;网球;体育器材;定义;作标记;实验室试验;尺寸;元部件;球拍
【英文主题词】:Components;Definitions;Designations;Dimensions;Laboratorymethod;Laboratorytesting;Marking;Measuringtechniques;Methodsformeasuring;Momentofinertia;Physicalproperties;Racquets;Sportsequipment;Tennis;Testequipment;Testing
【摘要】:Specifiescomponentsandphysicalparametersoftennisracketsanddefinestheterminologyused.Alsospecifieslaboratorymethodsformeasuringsomespecioicparametersoftennisracketsandgivesguidelinesfortheindicationoftheseparameters.Doesnotincludetheinfluenceoftheseparametersonthequalityofthetennisracket.
【中国标准分类号】:Y55
【国际标准分类号】:97_220_40
【页数】:8P.;A4
【正文语种】:英语