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ASTM D5623-1994(2009) 用气体色谱法和硫化选择性检测法测定轻石油溶液中硫化物的标准试验方法

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【英文标准名称】:StandardTestMethodforSulfurCompoundsinLightPetroleumLiquidsbyGasChromatographyandSulfurSelectiveDetection
【原文标准名称】:用气体色谱法和硫化选择性检测法测定轻石油溶液中硫化物的标准试验方法
【标准号】:ASTMD5623-1994(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atomicemissiondetection;gaschromatography;sulfurchemiluminescencedetection;sulfurcompounds;Atomicemissiondetection;Fuelsulfur;Gaschromatography(GC)--petroleumproducts;Lightpetroleumliquids;Volatileorganiccompounds(VOC)
【摘要】:Gaschromatographywithsulfurselectivedetectionprovidesarapidmeanstoidentifyandquantifysulfurcompoundsinvariouspetroleumfeedsandproducts.Oftenthesematerialscontainvaryingamountsandtypesofsulfurcompounds.Manysulfurcompoundsareodorous,corrosivetoequipment,andinhibitordestroycatalystsemployedindownstreamprocessing.Theabilitytospeciatesulfurcompoundsinvariouspetroleumliquidsisusefulincontrollingsulfurcompoundsinfinishedproductsandisfrequentlymoreimportantthanknowledgeofthetotalsulfurcontentalone.1.1Thistestmethodcoversthedeterminationofvolatilesulfur-containingcompoundsinlightpetroleumliquids.Thistestmethodisapplicabletodistillates,gasolinemotorfuels(includingthosecontainingoxygenates)andotherpetroleumliquidswithafinalboilingpointofapproximately230x00B0;C(450x00B0;F)orloweratatmosphericpressure.Theapplicableconcentrationrangewillvarytosomeextentdependingonthenatureofthesampleandtheinstrumentationused;however,inmostcases,thetestmethodisapplicabletothedeterminationofindividualsulfurspeciesatlevelsof0.1to100mg/kg.1.2Thetestmethoddoesnotpurporttoidentifyallindividualsulfurcomponents.Detectorresponsetosulfurislinearandessentiallyequimolarforallsulfurcompoundswithinthescope(1.1)ofthistestmethod;thusbothunidentifiedandknownindividualcompoundsaredetermined.However,manysulfurcompounds,forexample,hydrogensulfideandmercaptans,arereactiveandtheirconcentrationinsamplesmaychangeduringsamplingandanalysis.Coincidently,thetotalsulfurcontentofsamplesisestimatedfromthesumoftheindividualcompoundsdetermined;however,thistestmethodisnotthepreferredmethodfordeterminationoftotalsulfur.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_160_20
【页数】:6P.;A4
【正文语种】:英语


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【英文标准名称】:Plastics;Polyamides;Determinationof"meltingpoint"
【原文标准名称】:塑料.聚酰胺."熔点”的测定
【标准号】:ISO1218-1975
【标准状态】:作废
【国别】:国际
【发布日期】:1975-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:热试验;塑料;试验;热塑性聚合物;热塑性树脂;聚酰胺;熔点
【英文主题词】:testing;tests;thermoplasticpolymers;plastics;polyamide;polyamides;thermaltesting;thermaltests;meltingpoints;meltingpoint;thermoplasticresins
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:6850
【页数】:6P;A4
【正文语种】:英语