【英文标准名称】:TestMethodforVaporPressureofLiquefiedPetroleumGases(LPG)(ExpansionMethod)
【原文标准名称】:液化石油气(LPG)蒸气压力的试验方法(膨胀法)
【标准号】:ANSI/ASTMD6897-2004
【标准状态】:作废
【国别】:美国
【发布日期】:2004
【实施或试行日期】:2004-02-24
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气体;蒸气压力;石油
【英文主题词】:Expansionmethod;Gases;Liquefiedgases;Petroleum;Vapourpressure
【摘要】:Thistestmethodcoverstheuseofautomaticvaporpressureinstrumentstodeterminethevaporpressureofliquefiedpetroleumgasproductsatatemperatureof37.8?C,vaportoliquidratioof0.5:1,andpressuresfrom200to1550kPaonasamplevolumeof3.33mL.Thistestmethodisapplicabletothedeterminationofvaporpressuresofliquefiedpetroleumgasproductsattemperaturesfrom37.8to70?C,vaportoliquidratiosof0.1:1to4:1,andpressuresupto3500kPa;however,theprecisionofthetestmethod(seeSection15)hasonlybeendeterminedforavaportoliquidratioof0.5:1,atatemperatureof37.8?C,andapressurerangefrom300to1500kPa.Note1-ThistestmethodisnotintendedtodeterminethetruevaporpressureofLPGsamples,butratherdetermineandreportthevaporpressureofLPGatthe37.8?Ctemperatureand0.5:1vaportoliquidratioastheTestMethodD1267method.Note2-Thistestmethodisnotatruevaporpressuremethodandwillnotmeasurethefullcontributionfromanydissolvedgasessuchasnitrogenorheliumiftheyarepresent.Thecontributionoflightgasestothemeasuredvaporpressureishighlydependentonthetesttemperature,typeofgas,andV/Lratioofthetest.AtaskgrouphasbeenformedtodetermineorquantifytheeffectthatthecontributionoflightgaseshaveonthemeasuredvaporpressureofLPGsampletypesasafunctionofthetesttemperature,typeofgas,andV/Lratioofthetest.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeAppendixX2.
【中国标准分类号】:E46
【国际标准分类号】:75_160_30
【页数】:
【正文语种】:英语
基本信息
| 标准名称： | 反应性仪特性和测试方法 |
| 中标分类： |
能源、核技术 >>
核仪器与核探测器 >>
堆用核仪器 |
| ICS分类： |
能源和热传导工程 >>
核能工程 >>
有关核能的其他标
|
| 发布日期： | 1992-03-16 |
| 实施日期： | 1992-07-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 24页 |
适用范围
没有内容
前言
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目录
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引用标准
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所属分类： 能源 核技术 核仪器与核探测器 堆用核仪器 能源和热传导工程 核能工程 有关核能的其他标
【英文标准名称】:StandardTestMethodforDensityofSoilandRockIn-PlaceatDepthsBelowSurfacebyNuclearMethods
【原文标准名称】:采用核子法现场测定土壤及集料密度的标准试验方法(深层)
【标准号】:ASTMD5195-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:depthprobe;in-placedensity;insitudensity;nuclearmethods;Attenuation(ofgammaradiation);Calibration--soil/rockanalysisinstrumentation;Density--soil/rock/relatedmaterials;Depthprofiling;Gammaradiation--soil/rock;In-placedensity(of
【摘要】:Thistestmethodisusefulasarapid,nondestructivetechniqueforthecalculationofthein-placedensityofsoilandrockatdesireddepthsbelowthesurfaceasopposedtosurfacemeasurementsinaccordancewithTestMethodD6938.Thistestmethodisusefulforinformationalandresearchpurposes.ItshouldonlybeusedforqualitycontrolandacceptancetestingwhencorrelatedtootheracceptedmethodssuchasTestMethodD2937.Thenon-destructivenatureofthetestmethodallowsrepetitivemeasurementstobemadeatasingletestlocationforstatisticalanalysisandtomonitorchangesovertime.ThefundamentalassumptionsinherentinthistestmethodarethatComptonscatteringandphotoelectricabsorptionarethedominantinteractionsofthegammarayswiththematerialundertest.Note18212;Thequalityoftheresultproducedbythisstandardtestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection,andthelike.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthecalculationofthedensityofsoilandrockbytheattenuationofgammaradiation,wherethegammasourceandthegammadetectorareplacedatthedesireddepthinaboredholelinedbyanaccesstube.1.1.1ForlimitationsseeSection5onInterference.1.2Thedensity,inmassperunitvolumeofthematerialundertest,iscalculatedbycomparingthedetectedrateofgammaradiationwithpreviouslyestablishedcalibrationdata(seeAnnexA1).1.3Aprecisionstatementhasnotbeendevelopedforthisstandardatthistime.Therefore,thisstandardshouldnotbeusedforacceptanceorrejectionofamaterialforpurchasignpurposesunlesscorrelatedtootheracceptedASTMstandards.1.4ThevaluesstatedinSIunitsareregardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonlyandmaybeapproximate.1.5AllobservedandcalculatedvaluesshallconformtotheguideforsignificantdigitsandroundingestablishedinPracticeD6026.1.5.1Theproceduresusedtospecifyhowdataarecollected,recorded,andcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatshouldgenerallyberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheuserx2019;sobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalysismethodsforengineeringdesign.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection7,x201C;Hazards.x201D;
【中国标准分类号】:Q13
【国际标准分类号】:93_020
【页数】:5P.;A4
【正文语种】:英语