【英文标准名称】:Thermoplasticspipingandductingsystems-Jointsforburiednon-pressureapplications-Testmethodforthelong-termsealingperformanceofjointswithelastomericsealsbyestimatingthesealingpressure.
【原文标准名称】:热塑管和管道系统.非压力掩埋设备用接头.通过评估密封压力测定弹性密封件接合处的长期密封性能的试验方法
【标准号】:NFT54-916-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-06-01
【实施或试行日期】:2006-06-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:压实;弹性体;液体静压力;长期性状;材料;机械接合;管联接器;管连接件;管道装置;管道;管系统;塑料管道;塑料管;塑料;压力管;压力试验;密封能力;密封环;符号;试验设备;试验;热塑性聚合物;密封性;地下;地下装置
【英文主题词】:
【摘要】:
【中国标准分类号】:G42;G33
【国际标准分类号】:23_040_80
【页数】:16P;A4
【正文语种】:其他


【英文标准名称】:Reciprocatinginternalcombustionengines-Exhaustemissionmeasurement-Measurementofgaseousandparticulateexhaustemissionsatsite
【原文标准名称】:往复式内燃机.排气污染测定.气态和颗粒状排放污染物的定点测量
【标准号】:BSENISO8178-2-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-01-15
【实施或试行日期】:1997-01-15
【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】:流量测量;原动机;内燃机;现场试验;气体分析;气体分析仪;往复式发动机;误差;排气;颗粒空气污染物;燃烧产物;认可试验;试验条件;数学计算;污染物气体;采样设备;试验设备;准确度;抽样方法;校正
【英文主题词】:Definitions;Emission;Exhaustgases;Exhaustmeasurement;Gaseous;Internalcombustionengines;Mathematicalcalculations;Measurement;Measuringtechniques;Operationallocation;Particles;Particulatemattermeasurement;Reciprocatinginternalcombustionengines;Testing;Testingconditions
【摘要】:ThispartofISO8178,togetherwithISO8178-1,specifiesthemeasurementandevaluationmethodsforgaseousandparticulateexhaustemissionfromreciprocatinginternalcombustionengines(RICengines)understeady-stateconditionsatsite,necessaryfordeterminingoneweightedvalueforeachexhaustgaspollutant.Variouscombi-nationsofengineloadandspeedreflectdifferentengineapplications(seeISO8178-4).ThispartofISO8178ispreferablyappliedwhenRICenginesusedinmarineinstallations,generatingsets,dieselelectricrailtractionorsimilarapplicationsmustbemeasuredatsiteorwhenitisnotpossibletotakethemeasurementsundertest-bedconditionsortousethetest-bedmeasurementresults.ItisinappropriatetoapplythispartofISO8178tooff-roadvehicleenginespoweringvehiclessuchas,butnotlimitedto,agriculturaltractorsandharvesters,earthmovingmachines,largeoff-highwaytrucks(typicallyusedinmining),lawncareandutilityunitsandfork-lifttrucks.Enginespoweringthisequipmentaretobecertifiedonthetestbed.Ifre-checkingorre-certificationoftheseenginesisrequiredafterrebuild,theyshouldpreferablybetestedoutsidethevehicleonasuitableloadapplicationandmeasurementdevicesuchasadynamometerorloadbank.Thismethodcanbeusedfordeterminingconformityorcertificationofnew,usedorrebuiltenginesatsite.Con-firmationoftest-bedresultswithrespecttoISO8178-4canalsobeperformedwithinthisdocument.However,allowancesmustbemadefordifferencesinengineoperatingparametersfromlaboratoryconditions.Theenginemustbeoperatedatthesamespeedandtorquemeasuringpointsasusedfortest-bedmeasurement.Forenginesusedinmachinerycoveredbyadditionalrequirements(e.g.occupationalhealthandsafetyregulations,regulationsforpowerplants)additionaltestconditionsandspecialevaluationmethodsmayapply.NOTE1ThispartofISO8178isintendedtospecifyspecialrequirementsforthemeasurementofgaseousandparticulateemissionsatsite.Emissionscanbemeasuredandshouldbeprimarilymeasuredonatestbedforanyengine.Measurementonthetestbedismuchmoreaccurate,repeatableandeasy.Test-bedmeasurementsusingdefinedtestcyclesrepresentthoseofaverageandtypicaluseofengines.ThetestcyclesspecifiedinISO8178-4cannotalwaysbereproducedatsiteduetoconstraintsofload.Sitemeasurementisnecessaryonlywhenthefollowingrequirementsandconditionsexist.a)Whentest-bedmeasurementfortypeapprovalisnotappropriatebecausesiteconditionscannotbeduplicated.Thistestisasubstitutionoftest-bedmeasurement,thereforethetestshouldbeconductedusingthetestcycleinISO817-4.EXAMPLES1)whentheactualfuelusedatsitecannotbeusedbecauseofavailabilityorenvironmentalrestrictionattest-bedlocation;2)whentheambientconditionsofthetestbedarenotrepresentativeofthesiteconditionsbecauseofdif-ferenceinaltitude,humidityorairtemperature.Inthiscase,thispartofISO8178isonlyapplicabletothoseengineswhichcanreproduceatsite,measuringpointsspecifiedinISO8178-4,suchasmarineenginesatseatrials,initialinstallationofenginesfordrivinggeneratorsanddieselelectriclocomotives.b)Whenmeasurementatsiteisnecessarytoevaluateactualandlocalpollution.Thisshouldbemadeunderactualorsimulatedoperatingconditions.Engineoperationunderatestcyclede-finedinISO8178-4isnotalwayspossible,butthetestprocedureshouldbeascloseaspossibletothatpro-cedure.Therefore,valuesmeasuredinthiscasemaynotbedirectlycomparablewithtest-bedresultsbecausemeasuredvaluesareverymuchdependentontestcycles.c)Whensitemeasurementisagreedbetweenthepartiesinvolved.Valuesobtainedrepresentonlyaspecificengineunderspecificsiteconditionsanddonotnecessarilyr
【中国标准分类号】:J90
【国际标准分类号】:13_040_40;27_020
【页数】:30P;A4
【正文语种】:英语