【英文标准名称】:StandardTestMethodforVinylChlorideinWorkplaceAtmospheres(CharcoalTubeMethod)
【原文标准名称】:工场所大气中氯乙烯的标准试验方法(碳管法)
【标准号】:ASTMD4766-1998(2003)
【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(US-ASTM)
【起草单位】:D22.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:保健;空气;职业安全;氯乙烯;试验;含量测定
【英文主题词】:airmonitoring;charcoaltubemethod;samplingandanalysis;vinylchloride;workplaceartmosphere
【摘要】:Vinylchloridemonomeristhestartingmaterialforthemanufactureofpoly(vinylchloride)(PVC),whichisusedextensivelyinconstruction,electronics,packaging,andotherindustries.Thevinylchloridegascanescapeduringmanufacturing,transportation,andpolymerizationstages.Residualmonomercanalsoescapeduringsubsequentfabricationprocesses.Vinylchlorideisatoxicandexplosivehazardousmaterial.Vinylchlorideissuspectedtobeacarcinogenicagent(4).ThepresentOSHAstandardforVCMis1.0ppm(v)witha0.5-ppm(v)actionlevel.Themaximumlengthofoperatorexposureat5ppm(v)is15min.4Themethodismadeselectiveforvinylchloridebychoosingchromatographcolumnsthatwillseparatevinylchloridefromotherorganiccompoundsinthesample.Themethodmeetsthefederalrequirementsformonitoringworkplaceatmospheresinvinylchlorideandpoly(vinylchloride)productionandfabricationprocesses.1.1Thistestmethoddescribesthedeterminationofvinylchloridemonomer(VCM)inworkplaceatmospheresusingamodifiedcharcoaltubemethod(seePracticeD3686).1.2Thisprocedureiscompatiblewithlowflowratepersonalsamplingequipment.Itcanbeusedforpersonnelorstationarymonitoring.Itcannotdetermineinstantaneousfluctuationsinconcentrationtodetectmaximumvalues.Alternativeon-siteprocedures,suchasgaschromatographyorinfraredspectrometry,mustbeusedtomeasurefast-changingconcentrations.1.3Therangeofthistestmethodisfromthelimitofdetectionofapproximately0.01to100ppm.1.4Thesamplingmethodprovidesatime-weightedaveragesample.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Formorespecificprecautionarystatements,seeSection9andNotes2and4.
【中国标准分类号】:Z15
【国际标准分类号】:13_040_30
【页数】:7P.;A4
【正文语种】: