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【英文标准名称】:Significancetestofdifferencebetweenthetwopopulationmeans(standarddeviationsknown,two-sided)
【原文标准名称】:二个平均值之差的检定(已知标准偏差的上下偏差)
【标准号】:JISZ9047-1979
【标准状态】:作废
【国别】:日本
【发布日期】:1979-03-01
【实施或试行日期】:1979-03-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:BasicItems
【标准类型】:()
【标准水平】:()
【中文主题词】:平均;均值;数学计算;统计方法分析
【英文主题词】:average;mean;mathematicalcalculations;statisticalmethodsofanalysis
【摘要】:
【中国标准分类号】:A00
【国际标准分类号】:03_120_30
【页数】:6P;A4
【正文语种】:日语


【英文标准名称】:Reciprocatinginternalcombustionengines-Exhaustemissionmeasurement-Part1:Test-bedmeasurementofgaseousandparticulateexhaustemissions
【原文标准名称】:往复式内燃机.废气排放测量.第1部分:排气和颗粒废物排放量现场测量
【标准号】:ISO8178-1-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-09
【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/TC70
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;排放;排气;排气测量;气体的;内燃机;数学计算;测量;测量技术;颗粒;颗粒物质的测定;往复式内燃机;试验炉;试验;试验条件
【英文主题词】:Definitions;Emission;Exhaustgases;Exhaustmeasurement;Gaseous;Internalcombustionengines;Mathematicalcalculations;Measurement;Measuringtechniques;Particles;Particulatemattermeasurement;Reciprocatinginternalcombustionengines;Testfurnaces;Testing;Testingconditions
【摘要】:ThispartofISO8178specifiesthemeasurementandevaluationmethodsforgaseousandparticulateexhaustemissionsfromreciprocatinginternalcombustion(RIC)enginesundersteady-stateconditionsonatestbed,necessaryfordeterminingoneweightedvalueforeachexhaustgaspollutant.Variouscombinationsofengineloadandspeedreflectdifferentengineapplications(seeISO8178-4).ThispartofISO8178isapplicabletoRICenginesformobile,transportableandstationaryuse,excludingenginesformotorvehiclesprimarilydesignedforroaduse.ThispartofISO8178maybeappliedtoenginesused,forexample,forearth-movingmachines,generatingsetsandforotherapplications.Inlimitedinstances,theenginecanbetestedonthetestbedinaccordancewithISO8178-2,thefieldtestdocument.Thiscanonlyoccurwiththeagreementofthepartiesinvolved.ItshouldberecognizedthatdataobtainedunderthesecircumstancesmaynotagreecompletelywithpreviousorfuturedataobtainedundertheauspicesofthispartofISO8178.Therefore,itisrecommendedthatthisoptionbeexercisedonlywithenginesbuiltinverylimitedquantitiessuchasverylargemarineorgeneratingsetengines.Forenginesusedinmachinerycoveredbyadditionalrequirements(e.g.occupationalhealthandsafetyregulations,regulationsforpowerplants),additionaltestconditionsandspecialevaluationmethodsmayapply.Whereitisnotpossibletouseatestbedorwhereinformationisrequiredontheactualemissionsproducedbyanin-serviceengine,thesitetestproceduresandcalculationmethodsspecifiedinISO8178-2areappropriate.
【中国标准分类号】:J90;Z64
【国际标准分类号】:13_040_50;27_020
【页数】:124P;A4
【正文语种】:英语