MIL-M-3971/1D, MILITARY SPECIFICATION SHEET: METERS, TIME TOTALIZING, NON-HERMETICALLY SEALED, ELECTRICAL: TYPE 1, 10-40V OR 40-130V OR 10-130V: GRADES A AND B, 2 HOLE AND 3 HOLE FLANGE (14 SEP 1992) [S/S BY MIL-DTL-3971/1E]., This specification is approved for use by all Departments and Agencies of the Department of Defense. The complete requirement for procuring meters described herein shall consist of this document and the issue in effect of MIL-M-3971.
基本信息
| 标准名称： | 兵器工业水污染物排放标准 火炸药 |
| 英文名称： | Discharge standard for water pollutants from ordnance industry. Power and explosive |
| 中标分类： |
环境保护 >>
污染物排放标准 >>
污染物排放综合 |
| ICS分类： |
环保、保健与安全 >>
>>
污水
|
| 替代情况： | 被GB 14470.1-2002代替 |
| 发布日期： | 1993-06-26 |
| 实施日期： | 1994-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2003-07-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 16页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 环境保护 污染物排放标准 污染物排放综合 环保 保健与安全 污水
【英文标准名称】:StandardPracticeforEvaluatingthePerformanceofRespirableAerosolSamplers
【原文标准名称】:可呼吸的气雾剂样品性能评价的标准操作规程
【标准号】:ASTMD6061-2001(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:气溶胶;收集器;接收机;采样器;空气污染
【英文主题词】:aerosol;airmonitoring;bias;confidence;conventions;deposition;evaluation;fractions;particle;particulates;penetration;performance;randomvariation;respirable;samplingandanalysis;samplingefficiency;size-selective;tolerance;
【摘要】:Thispracticeissignificantfordeterminingperformancerelativetoidealsamplingconventions.Thepurposesaremultifold:5.1.1Theconventionshavearecognizedtietohealtheffectsandcaneasilybeadjustedtoaccommodatenewfindings.5.1.2Performancecriteriapermitinstrumentdesignerstoseekpracticalsamplerimprovements.5.1.3Performancecriteriapromotecontinuedexperimentaltestingofthesamplersinusewiththeresultthatthesignificantvariables(suchaswindspeed,particlecharge,etc.)affectingsampleroperationbecomeunderstood.Onespecificuseoftheperformancetestsisindeterminingtheefficacyofagivencandidatesamplerforapplicationinregulatorysampling.Theaccuracyofthecandidatesamplerismeasuredinaccordancewiththeevaluationtestsgivenhere.Asamplermaythenbeadoptedforaspecificapplicationiftheaccuracyisbetterthanaspecificvalue.5.2.1Discussion151;Insomeinstances,asamplersoselectedforuseincompliancedeterminationsisspecifiedwithinanexposurestandard.Thisisdonesoastoeliminatedifferencesamongsimilarsamplers.Samplerspecificationthenreplacestherespirablesamplingconvention,eliminatingbias(3.2.10),whichthendoesnotappearintheuncertaintybudget.Althoughthecriteriaarepresentedintermsofacceptedsamplingconventionsgearedmainlytocompliancesampling,otherapplicationsexistaswell.Forexample,supposethataspecificaerosoldiameter-dependenthealtheffectisunderinvestigation.Thenforthepurposeofanepidemiologicalstudyanaerosolsamplerthatreflectsthediameterdependenceofinterestisrequired.Sampleraccuracymaythenbedeterminedrelativetoamodifiedsamplingconvention.1.1Thispracticecoverstheevaluationoftheperformanceofpersonalsamplersofnon-fibrousrespirableaerosol.Thesamplersareassessedrelativetoaspecificrespirablesamplingconvention.Theconventionisoneofseveralthatidentifyspecificparticlesizefractionsforassessinghealtheffectsofairborneparticles.Whenahealtheffectsassessmenthasbeenbasedonaspecificconventionitisappropriatetousethatsameconventionforsettingpermissibleexposurelimitsintheworkplaceandambientenvironmentandformonitoringcompliance.Theconventions,whichdefineinhalable,thoracic,andrespirableaerosolsamplerideals,havenowbeenadoptedbytheInternationalStandardsOrganization(TechnicalReportISOTR7708),theComitEuropendeNormalisation(CENStandardEN481),andtheAmericanConferenceofGovernmentalIndustrialHygienists(ACGIH,Ref(1)),developed(2)inpartfromhealth-effectsstudiesreviewedinRef(3)andinpartasacompromisebetweendefinitionsproposedinRefs(3,4).1.2ThispracticeiscomplimentarytoTestMethodD4532,whichspecifiesaparticularinstrument,the10-mmcyclone.Thesamplerevaluationprocedurespresentedinthispracticehavebeenappliedinthetestingofthe10-mmcycloneaswellastheHiggins-Dewellcyclone.,Detailsontheevaluationhavebeenrecentlypublished(5-7)andcanbeincorporatedintorevisionsofTestMethodD4532.1.3Acentralaimofthispracticeistoprovideinformationrequiredforcharacterizingtheuncertaintyofconcentrationestimatesfromsamplestakenbycandidatesamplers.Forthispurpose,samplingaccuracydatafromtheperformancetestsgivenherecanbecombinedwithinformationastoanalyticalandsamplingpumpuncertaintyobtainedexternally.ThepracticeappliesprinciplesofISOGUM,expandedtocoversituationscommoninoccupationalhygienemeasurement,wherethemeasurandvariesmarkedlyinbothtimeandspace.Ageneralapproach(