【英文标准名称】:Auxiliariesforlamps-Capacitorsforuseintubularfluorescentandotherdischargelampcircuits-Generalandsafetyrequirements.
【原文标准名称】:灯的附件.管状荧光灯用电容器和其他放电灯电路.总则和安全性要求
【标准号】:NFC71-242-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-09-01
【实施或试行日期】:2006-09-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电容;放电灯附件器具;电容器;连接插头;控制图;定义;放电灯;电气元件;电气工程;荧光灯;一般条件;批注;检验;灯;作标记;防电击;合格试验;安全;安全要求;串联;规范(验收);试验;管式荧光灯;管形灯;管状
【英文主题词】:
【摘要】:
【中国标准分类号】:K74
【国际标准分类号】:29_140_99;31_060_99
【页数】:38P;A4
【正文语种】:其他
基本信息
标准名称: | 车间空气中四氯化碳的溶剂解吸气相气色谱测定方法 |
英文名称: | Workplace air—Determination of carhon tetrachloride—Solvent desorption gas chromatographic method |
中标分类: |
医药、卫生、劳动保护 >>
卫生 >>
劳动卫生 |
ICS分类: |
环保、保健与安全 >>
空气质量 >>
工作场所空气
|
替代情况: | 被GBZ/T 160.45-2004代替 |
发布部门: | 国家技术监督局 |
发布日期: | 1995-12-21 |
实施日期: | 1996-07-01 |
首发日期: | 1995-12-21 |
作废日期: | 2004-12-01 |
主管部门: | 卫生部 |
归口单位: | 卫生部 |
起草单位: | 上海市卫生防疫站 |
出版社: | 中国标准出版社 |
出版日期: | 1900-01-01 |
页数: | 平装16开, 页数:5, 字数:6千字 |
适用范围
本标准规定了用FFAP柱气相色谱法分离测定车间空气中四氯化碳。本标准适用于测定四氯化碳生产及使用现场空气中四氯化碳的浓度。
前言
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目录
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引用标准
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所属分类: 医药 卫生 劳动保护 卫生 劳动卫生 环保 保健与安全 空气质量 工作场所空气
【英文标准名称】:StandardTestMethodforDensityandUnitWeightofSoilinPlacebytheSleeveMethod
【原文标准名称】:用套筒法现场测试土壤密度和单位重量的标准试验方法
【标准号】:ASTMD4564-2008
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compactioncontrol;densitytesting;fielddensity;fieldtest;in-placedensity;qualitycontrol;relativedensity;soilcompaction;soiltest;Calibration--soil/rockanalysisinstrumentation;Cohesionlesssoil;Compactionmeasurement--soils;Densi
【摘要】:Thistestmethodisusedtodeterminethedensityofcohesionlesssoilusedintheconstructionofearthembankmentsandroadfills,orofcohesionlesssoilsusedforstructurebackfill,beddingandbackfillforpipe,orfilters.Thistestmethodisusedasthebasisforacceptanceofsoilscompactedtoaspecifieddensityortoaspecifiedrelativedensity.Thistestmethodmaybeusefulindeterminingthedensityofcohesionlesssoilsinaconfinedorlimitedspacesincethistestmethodrequireslessworkingareathanothermethods.Apredeterminedcalibrationequationisnecessarytousethisprocedure(seeAnnexA1).Itisassumedthereisalinearrelationshipbetweenthedensityinplaceandthemassofdrysoilperinchoftestholemeasuredbythesleevemethod.Thismaynotbetrueforcertainsoilsorthelinearrelationshipmayexistonlyforaparticularrangeofdensities.Thequalityoftheresultsproducedbythisstandardisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors:PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thistestmethodcoversthedeterminationofthedensityofsoilinplacebythesleevemethod.1.2Thesleevemethodofdeterminingthedensityofsoilinplaceisusedforcohesionless,granularsoilsforwhichothermethodsofdeterminingthedensity(sandcone,testpit,andthelike)maynotbepractical.Typically,thesleevemethodisapplicableforsoilsthatarepredominantlyfinegravelsize,withamaximumof5%fines,andamaximumparticlesizeofx00BE;in.(19.0mm).Note18212;Therehavebeenothermethodsdevelopedfortestingcohesionlesssoils.Comparedtoothermethods,thisprocedureisconvenientforfieldconstructioncontroltestingbecausesmallerandlighterequipmentisusedandthetestcanbeperformedinasmallerarea.1.3Acalibrationequationisnecessaryintheapplicationofthistestmethodtoobtainareliablevalueofthein-placedensityofthesoil(seeAnnexA1).Thecalibrationequationisusedtocalculatethedensityofthesoilinplacefromthemassofdrysoilperinchoftestholemeasuredbythesleevemethod.1.3.1Thecalibrationequationispredeterminedforaparticularsoiltypethatistobetested.Whenthesoilchangessignificantlyineithergradationorparticleangularity,thecalibrationequationmayhavetobeadjustedorredefinedbeforethesleevemethodcanbeused.1.3.2Theremaybecertainsoilsmeetingthegeneraldescriptionin1.2forwhichacalibrationequationmaynotbeappropriateduetounsatisfactorycorrelationofthedata.Thesleevemethodwouldnotbeapplicableforthesesoils.1.3.3Theremaybecertainsoilsmeetingthedescriptionin1.2forwhichthecalibrationequationmaybeapplicableonlyforacertainrangeofdensities.Thesleevemethodwillgivereliablevaluesofthedensityinplaceonlywithinthatrangeofdensities.1.4Thistestmethodusesinch-poundunitswithSIrationalizedunits;thatis,acombinedstandard.1.4.1ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresult......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:9P.;A4
【正文语种】:英语