ASTM D1492-2008e1 库仑计滴定法测定芳烃溴指数的标准试验方法

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【英文标准名称】:StandardTestMethodforBromineIndexofAromaticHydrocarbonsbyCoulometricTitration
【原文标准名称】:库仑计滴定法测定芳烃溴指数的标准试验方法
【标准号】:ASTMD1492-2008e1
【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】:D16.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aromatichydrocarbons;bromineindex;bromine-reactive;coulometrictitration;titration;Aromatichydrocarbons(AHs);Bromineindex;Bromine-reactivematerial;Coulometrictitration;Titration
【摘要】:Thistestmethodisusefulforsettingspecification,foruseasaninternalqualitycontroltool,andforuseindevelopmentorresearchworkonindustrialaromatichydrocarbonsandrelatedmaterials.Thistestmethodgivesabroadindicationofolefiniccontent.Itwillnotdifferentiatebetweenthetypesofaliphaticunsaturation.1.1Thistestmethodcoversthedeterminationoftheamountofbromine-reactivematerialinaromatichydrocarbons.Itisusuallyappliedtomaterialshavingbromineindexesbelow500.Note18212;Othertestmethodsfordeterminingbromine-reactivematerialareTestMethodsD1159,,D2710,andD5776.1.2Thistestmethodhasbeenfoundapplicabletoaromatichydrocarbonscontainingnomorethantraceamountsofolefinsandthataresubstantiallyfreefrommateriallighterthanisobutaneandhaveadistillationendpointunder288x00B0;C.1.3Thefollowingappliestoallspecifiedlimitsinthistestmethod:Forpurposesofdeterminingconformancewiththistestmethod,anobservedvalueoracalculatedvalueshallberoundedoffx201C;tothenearestunitx201D;inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Warningx2014;MercuryhasbeendesignatedbyEPAandmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidney,andliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPA''swebsite(http://www.epa.gov/mercury/faq.htm)foradditionalinformation.Usersshouldbeawarethatsellingmercuryormercury-containingproducts,orboth,inyourstatemaybeprohibitedbystatelaw.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForaspecifichazardstatementseeSection8.
【中国标准分类号】:G17
【国际标准分类号】:71_080_15
【页数】:4P.;A4
【正文语种】:英语