ANSI/IEEE 1003.1-2002 信息技术.便携式操作系统接口(POSIX)

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【英文标准名称】:StandardPracticeforSamplingWorkplaceAtmospherestoCollectGasesorVaporswithSolidSorbentDiffusiveSamplers
【原文标准名称】:用固体吸附剂扩散采样器从工作场所大气中采集气体或蒸气的标准实施规程
【标准号】:ASTMD4597-2003(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:airmonitoring;diffusivesamplers;organicgases;organicvapors;samplingandanalysis;workplaceatmospheres;Activatedcharcoal;Airmonitoring;Calibration--air/atmosphericanalysisinstruments;Contamination--atmospheric;Diffusionalsampling;
【摘要】:RegulationssuchasthosepromulgatedbytheU.S.OccupationalSafetyandHealthAdministrationin29CFR1910.1000designatethatcertainhazardousgasesandvaporsmustnotbepresentintheworkplaceairatconcentrationsabovespecificvalues.Thispractice,whenusedinconjunctionwithananalyticaltechnique,suchasthatgivenfororganiccompoundsinPracticeD3687,mayprovideameansforthedeterminationoftime-weightedairborneconcentrationsofmanyofthehazardousgasesandvaporsinapplicableregulations(forexample,29CFR1919.1000,),aswellasothers.Themanufacturer''sliteratureshouldbeconsultedfortheappropriatelistofchemicalswhichmaybesampledbyaparticulardevice.1.1Thispracticecoversthesamplingofworkplaceatmospheresforthepresenceofcertaingasesorvaporsbymeansofdiffusionacrossaspecifiedquiescentregionandsubsequentsorptiononasolidsorbent(1).1.2AlistoforganiccompoundswhichareapplicabletosolidsorbentsamplingwherethesorbentiscontainedinabedthroughwhichairispassedisgiveninAnnexA1ofPracticeD3686.Diffusivesamplersmaybeapplicabletoasimilarrangeofcompoundsbutthismustbeconfirmedbyreferencetotheindividualsamplermanufacturers''literature.1.3Thevaliduseofdiffusivesamplersdependsontheexistenceofactuallaboratoryorfieldvalidation,orboth.Guidanceonvalidationcanbeobtainedfrompublishedprotocols(2-6).Thispracticeisnotdesignedtocovertheverification,validation,orspecifictestproceduresusedtoassesstheaccuracyorprecisionofdiffusivesamplers.1.4ThevaluesstatedinSIunitsshallberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C70
【国际标准分类号】:13_100
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Tappingscrewthreads
【原文标准名称】:丝锥螺纹螺钉
【标准号】:BSENISO1478-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-01-15
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:螺钉;螺纹紧固件;自攻丝螺钉;尺寸;螺纹;紧固件;外螺纹紧固件;名称与符号
【英文主题词】:threadedfasteners;threads;fasteners;screws(bolts);external-threadfasteners;designations;self-tappingscrews;dimensions
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_040_30
【页数】:12P;A4
【正文语种】:英语