作者:标准资料网 时间:2024-05-16 12:21:44   浏览:8183   来源:标准资料网

【英文标准名称】:StandardTestMethodforVinylChlorideinWorkplaceAtmospheres(CharcoalTubeMethod)
【原文标准名称】:测定工作场所中氯乙烯的标准试验方法(活性碳法)
【标准号】:ASTMD4766-1998(2009)e1
【标准状态】:现行
【国别】:美国
【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】:
【英文主题词】:airmonitoring;charcoaltubemethod;samplingandanalysis;vinylchloride;workplaceatmosphere;Occupationalhealthandsafety--atmospheric;Plastics(atmosphericanalysis);Polymerization;Poly(vinylchloride)(PVC);Transportation;Vinylchloridep
【摘要】:Vinylchloridemonomer(VCM)isthestartingmaterialforthemanufactureofpoly(vinylchloride)(PVC),whichisusedextensivelyinconstruction,electronics,packaging,andotherindustries.Thevinylchloridegascanescapeduringmanufacturing,transportation,andpolymerizationstages.Residualmonomercanalsoescapeduringsubsequentfabricationprocesses.Vinylchlorideisatoxicandexplosivehazardousmaterial.Vinylchlorideissuspectedtobeacarcinogenicagent(4),andoccupationalexposurelimits(OELs)havebeenestablishedforthisagent.Forinstance,thepresentU.S.OccupationalSafetyandHealthAdministration(OSHA)standardforVCMis1.0ppm(v)witha0.5-ppm(v)actionlevel;themaximumlengthofoperatorexposureat5ppm(v)is15min.Themethodismadeselectiveforvinylchloridebychoosingchromatographcolumnsthatwillseparatevinylchloridefromotherorganiccompoundsinthesample.Themethodmeetsrequirements(forexample,thoseofOSHA)formonitoringworkplaceatmospheresinvinylchlorideandpoly(vinylchloride)productionandfabricationprocesses.1.1Thistestmethoddescribesthedeterminationofvinylchloridemonomer(VCM)inworkplaceatmospheresusingamodifiedcharcoaltubemethod(seePracticeD3686).1.2Thisprocedureiscompatiblewithlowflowratepersonalsamplingequipment.Itcanbeusedforpersonalorstationarymonitoring.Itcannotdetermineinstantaneousfluctuationsinconcentrationtodetectmaximumvalues.Alternativeon-siteprocedures,suchasgaschromatographyorinfraredspectrometry,mustbeusedtomeasurefast-changingconcentrations.1.3Therangeofthistestmethodisfromthelimitofdetectionofapproximately0.01to100ppm(v).1.4Thesamplingmethodprovidesatime-weightedaveragesample.1.5ThevaluesstatedinSIunitsshallberegardedasthestandard.Inch-poundunitsareprovidedforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Formorespecificprecautionarystatements,seeSection9andWarningsin10.2.3and11.1.3.
【中国标准分类号】:C70
【国际标准分类号】:13_040_30
【页数】:7P.;A4
【正文语种】:英语