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ASTM D2650-2004 质谱法测定气体化学组成的标准试验方法

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【英文标准名称】:StandardTestMethodforChemicalCompositionofGasesByMassSpectrometry
【原文标准名称】:质谱法测定气体化学组成的标准试验方法
【标准号】:ASTMD2650-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D02.04.0M
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;气体燃料;试验;燃料;光谱测定法;化学成分
【英文主题词】:gasanalysis;gascomposition;massspectrometry
【摘要】:Aknowledgeofthecompositionofrefinerygasesisusefulindiagnosingthesourceofplantupsets,indeterminingthesuitabilityofcertaingasstreamsforuseasfuel,orasfeedstocksforpolymerizationandalkylation,andformonitoringthequalityofcommercialgases.1.1Thistestmethodcoversthequantitativeanalysisofgasescontainingspecificcombinationsofthefollowingcomponents:hydrogen;hydrocarbonswithuptosixcarbonatomspermolecule;carbonmonoxide;carbondioxide;mercaptanswithoneortwocarbonatomspermolecule;hydrogensulfide;andair(nitrogen,oxygen,andargon).Thistestmethodcannotbeusedforthedeterminationofconstituentspresentinamountslessthan0.1mole%.Dimethylbutanesareassumedabsentunlessspecificallysought.Note1Althoughexperimentalproceduresdescribedhereinareuniform,calculationproceduresvarywithapplication.Thefollowinginfluencesguidetheselectionofaparticularcalculation:qualitativemixturecomposition;minimumerrorduetocomponentspresumedabsent;minimumcrossinterferencebetweenknowncomponents;maximumsensitivitytoknowncomponents;lowfrequencyandcomplexityofcalibration;andtypeofcomputingmachinery.Becauseoftheseinfluences,atabulationofcalculationproceduresrecommendedforstatedapplicationsispresentedinSection().Note2ThistestmethodwasdevelopedonConsolidatedElectrodynamicsCorporationType103MassSpectrometers.Usersofotherinstrumentsmayhavetomodifyoperatingparametersandthecalibrationprocedure.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G86
【国际标准分类号】:71_040_40
【页数】:7P.;A4
【正文语种】:


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【英文标准名称】:StandardTestMethodsforHeat-ShrinkableTubingforElectricalUse
【原文标准名称】:电气用热收缩管的标准试验方法
【标准号】:ASTMD2671-2000(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D09.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:收缩;试验;电绝缘;管;覆层;热缩元件;电气工程
【英文主题词】:adhesivepeelstrength;brittlenesstemperature;color;colorstability;coppercorrosion;dielectricbreakdownvoltage;dielectricstrength;flameresistance;fluidresistance;fungusresistance;heatresistance;heatshock;heatshrinkabletubing;insidediameter;length;lowtemperature;meltingpoint;restrictedshrinkage;secantmodulus;specificgravity;storagelife;stressmodulus;temperatureindex;tensilestrength;testmethods;thermalendurance;thermalendurancegraph;tubing;heat-shrinkable;ultimateelongation;volumeresistivity;wallconcentricity;wallthickness;waterabsorption
【摘要】:Thesetestmethodsincludemostoftheimportanttestsusedtocharacterizeheat-shrinkabletubing.Theyareintendedprimarilyfor,butnotlimitedto,extrudedheat-shrinkabletubing.Variationsinthesetestmethodsoralternatecontemporarymethodsofmeasurementmaybeusedtodeterminethevaluesforthepropertiesinthisstandardprovidedsuchmethodsensurequalitylevelsandmeasurementaccuracyequaltoorbetterthanthoseprescribedherein.Itistheresponsibilityoftheorganizationsusingalternatetestmethodstobeabletodemonstratethiscondition.Incasesofdispute,themethodsspecifiedhereinshallbeused.Note28212;Provisionforalternatemethodsisnecessarybecauseof(1)thedesiretosimplifyproceduresforspecificapplicationswithoutalteringtheresult,and(2)thedesiretoeliminateredundanttestingandusedatageneratedduringmanufacturingprocesscontrol,includingthatgeneratedunderStatisticalProcessControl(SPC)conditions,usingequipmentandmethodsotherthanthosespecifiedherein.Anexamplewouldbetheuseoflasermicrometersoropticalcomparatorstomeasuredimensions.1.1Thesetestmethodscoverthetestingofheat-shrinkabletubingusedforelectricalinsulation.Materialsusedincludepoly(vinylchloride),polyolefins,fluorocarbonpolymers,siliconerubber,andotherplasticorelastomericcompounds.1.2Thevaluesstatedininch-poundunitsarethestandardexceptfortemperature,whichshallbeexpressedindegreesCelsius.Valuesstatedinparenthesesareforinformationonly.1.3Theproceduresappearinthefollowingsections:1.4Thisisafire-test-responsestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSectionsand.Note1Thesetestmethodsaresimilar,butnotidenticalto,thoseinIEC60684-2(seealsoNote0).1.5Thisisafire-test-responsestandard.Thetestproceduresmeasuretheresistanceofthetubingtoignitionandpropagationofflameafterignitionunderprescribedconditionsoftest.1.6Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.
【中国标准分类号】:G33
【国际标准分类号】:29_120_99
【页数】:18P.;A4
【正文语种】:


【英文标准名称】:Rubbercompoundingingredients-Abbreviations
【原文标准名称】:橡胶配合剂.缩略语
【标准号】:ISO6472-2004
【标准状态】:作废
【国别】:国际
【发布日期】:2004-02
【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/TC45
【标准类型】:()
【标准水平】:()
【中文主题词】:符号;缩写;橡胶;名称与符号;混合物;配料
【英文主题词】:Abbreviations;Designations;Ingredients;Mixtures;Rubber;Symbols
【摘要】:本标准规定了通常使用的已知特定化学品橡胶配合剂的缩略语。
【中国标准分类号】:G34
【国际标准分类号】:83_040_20
【页数】:30P.;A4
【正文语种】:英语