【英文标准名称】:StandardTestMethodforTotalOlefinsinSpark-IgnitionEngineFuelsbyMulti-dimensionalGasChromatography
【原文标准名称】:用多维气相色谱法测定火花点火发动机燃料中烯烃总含量的标准试验方法
【标准号】:ASTMD6296-1998(2003)e1
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:链烯;链烯;气相色谱法;气相色谱法;气相色谱法;试验;汽油;机动车燃料;多维气相色谱法;火花点燃发动机燃料
【英文主题词】:gaschromatography;gasoline;multidimensionalgaschromatography;olefins;spark-ignitionenginefuels
【摘要】:Thequantitativedeterminationofolefinsinspark-ignitionenginefuelsisrequiredtocomplywithgovernmentregulations.Knowledgeofthetotalolefincontentprovidesameanstomonitortheefficiencyofcatalyticcrackingprocesses.ThistestmethodprovidesbetterprecisionforolefincontentthanTestMethodD1319.Italsoprovidesdatainamuchshortertime,approximately20minfollowingcalibration,andmaximizesautomationtoreduceoperatorlabor.ThistestmethodisnotapplicabletoM85orE85fuels,whichcontain85%methanolandethanol,respectively.1.1ThistestmethodprovidesforthequantitativedeterminationoftotalolefinsintheC4toC10rangeinspark-ignitionenginefuelsorrelatedhydrocarbonstreams,suchasnaphthasandcrackednaphthas.Olefinconcentrationsintherangefrom0.2to5.0liquid-volume%ormass%,orboth,canbedetermineddirectlyontheas-receivedsamplewhereasolefinsinsamplescontaininghigherconcentrationsaredeterminedafterappropriatesampledilutionpriortoanalysis.1.2Thistestmethodisapplicabletosamplescontainingalcoholsandethers;however,samplescontaininggreaterthan15%alcoholmustbediluted.Samplescontaininggreaterthan5.0%ethermustalsobedilutedtothe5.0%orlesslevel,priortoanalysis.Whenethyl-tert-butyletherispresent,onlyolefinsintheC4toC9rangecanbedetermined.1.3Thistestmethodcannotbeusedtodetermineindividualolefincomponents.1.4ThistestmethodcannotbeusedtodetermineolefinshavinghighercarbonnumbersthanC10.Note18212;PrecisionwasdeterminedonlyonsamplescontainingMTBEandethanol.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Cryogenicvessels-Safetydevicesforprotectionagainstexcessivepressure-Part3:Determinationofrequireddischarge;Capacityandsizing;GermanversionEN13648-3:2002
【原文标准名称】:低温容器.超压安全装置.第3部分:规定的排放量、容量和尺寸测定
【标准号】:EN13648-3-2002
【标准状态】:现行
【国别】:
【发布日期】:2003-01
【实施或试行日期】:2003-01-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:压力;规范;试验;超压;安全阀;容器;压力过载;计算方法;规范(验收);低温;识别牌;定义;气动试验;出流测量;安全要求;热传递;大小测量;设计;低温容器;安全装置;作标记;阀门;物流;密封性;性能试验;压力控制阀
【英文主题词】:Containers;Cryogenic;Cryogenicvessels;Definition;Definitions;Design;Dischargeflowmeasurement;Excesspressures;Heattransmission;Identificationplates;Marking;Massflow;Methodsofcalculation;Performancetests;Pneumatictests;Pressure;Pressurecontrolvalves;Pressureoverload;Safetydevice;Safetyrequirements;Safetyvalves;Sizemeasurement;Specification;Specification(approval);Testing;Tests;Tightness;Valves
【摘要】:
【中国标准分类号】:J73
【国际标准分类号】:23_020_40;23_060_40
【页数】:13P.;A4
【正文语种】:英语