GB/T 2423.3-1993 电工电子产品基本环境试验规程 试验Ca:恒定湿热试验方法
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基本信息
标准名称: | 电工电子产品基本环境试验规程 试验Ca:恒定湿热试验方法 |
英文名称: | Basic environmental testing procedures for electric and electronic products-Test Ca: Damp heat, steady state |
中标分类: |
电工 >>
电工综合 >>
基础标准与通用方法 |
ICS分类: |
试验 >>
环境试验
|
替代情况: | 替代GB 2423.3-1981;被GB2423.3-2006替代 |
发布部门: | 国家技术监督局 |
发布日期: | 1993-01-01 |
实施日期: | 1994-07-01 |
首发日期: | 1981-08-10 |
作废日期: | 2007-09-01 |
主管部门: | 中国电器工业协会 |
归口单位: | 全国电工电子产品环境条件与环境试验标准化技术委员会 |
起草单位: | 机械部广州电器所 |
出版社: | 中国标准出版社 |
出版日期: | 2004-10-14 |
页数: | 平装16开, 页数:5, 字数:5千字 |
书号: | 155066.1-10706 |
适用范围
本标准规定了恒定湿热试验的试验程序、严酷等级和对试验箱(室)的在本要求等。本标准适用于确定电工电子产品、件、材料等在恒定湿热条件下使用和贮存的适应性。
前言
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目录
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引用标准
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所属分类: 电工 电工综合 基础标准与通用方法 试验 环境试验
【英文标准名称】:Filamentlampsforroadvehicles-Dimensional,electricalandluminousrequirements(IEC60809:1995);GermanversionEN60809:1996
【原文标准名称】:道路车辆用白炽灯.尺寸,电气和照明技术要求
【标准号】:DINEN60809-1996
【标准状态】:作废
【国别】:德国
【发布日期】:1996-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:可置换性;电气设备;灯;电气工程;白炽灯;信号灯;道路车辆;电性质和电现象;规范(验收);尺寸;摩托车;照明工程
【英文主题词】:motorvehicles;electricalequipment;electricalpropertiesandphenomena;lamps;specification(approval);electricalengineering;incandescentlamps;dimensions;illuminationengineering;replaceability;sign
【摘要】:
【中国标准分类号】:K71
【国际标准分类号】:43_040_20;29_140_20
【页数】:115P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforManualSamplingofPetroleumandPetroleumProducts
【原文标准名称】:石油和石油产品的手工取样用标准实施规程
【标准号】:ASTMD4057-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D02.02.0B
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:润滑剂;手工的;石油;石油产品;工艺;取样方法
【英文主题词】:boringsampling;bottle/beakersampling;corethiefspotsampling;dippersampling;extendedtubesampling;grabsampling;greasesampling;marinecustodytransfer;samplecontainers;samplehandling;samplelabeling;samplemixing;sampleshipment;sampl
【摘要】:Representativesamplesofpetroleumandpetroleumproductsarerequiredforthedeterminationofchemicalandphysicalproperties,whichareusedtoestablishstandardvolumes,prices,andcompliancewithcommercialandregulatoryspecifications.Thefollowingconceptsmustbeconsideredwhenselectingaspecificsamplingprocedure.5.2.1ObjectiveofManualSampling:5.2.1.1Theobjectiveofmanualsamplingistoobtainasmallportion(spotsample)ofmaterialfromaselectedareawithinacontainerthatisrepresentativeofthematerialintheareaor,inthecaseofrunningorall-levelsamples,asamplewhosecompositionisrepresentativeofthetotalmaterialinthecontainer.Aseriesofspotsamplesmaybecombinedtocreatearepresentativesample.5.2.2RequiredConditionsfortheApplicationofManualSampling:5.2.2.1Manualsamplingmaybeappliedunderallconditionswithinthescopeofthispractice,providedthatthepropersamplingproceduresarefollowed.5.2.2.2Inmanyliquidmanualsamplingapplications,thematerialtobesampledcontainsaheavycomponent(suchasfreewater)whichtendstoseparatefromthemaincomponent.Inthesecases,manualsamplingisappropriateunderthefollowingconditions.(1)Sufficienttimemusthaveelapsedfortheheavycomponenttoadequatelyseparateandsettle.(2)Itmustbepossibletomeasurethelevelofthesettledcomponentinordertostaywellabovethatlevelwhendrawingrepresentativesamples,unlessallorpartoftheheavycomponentwillbeincludedintheportionofthetankcontentstobeidentified.(3)Whenoneormoreoftheseconditionscannotbemet,samplingisrecommendedandisaccomplishedbymeansofanautomaticsamplingsystem(seePracticeD4177(APIMPMSChapter8.2)).1.1Thispracticecoversproceduresformanuallyobtainingrepresentativesamplesofpetroleumproductsofaliquid,semi-liquid,orsolidstatewhosevaporpressureatambientconditionsisbelow101kPa(14.7psia).Ifsamplingisfortheprecisedeterminationofvolatility,usePracticeD5842(APIMPMSChapter8.4)inconjunctionwiththispractice.Forsamplemixingandhandlingofsamples,refertoPracticeD5854(APIMPMSChapter8.3).Thepracticedoesnotcoversamplingofelectricalinsulatingoilsandhydraulicfluids.AsummaryofthemanualsamplingproceduresandtheirapplicationsispresentedinTable1.Note1-Theproceduresdescribedinthispracticemayalsobeapplicableinsamplingmostnoncorrosiveliquidindustrialchemicals,providedthatallsafetyprecautionsspecifictothesechemicalsarestrictlyfollowed.Note2-TheprocedureforsamplingliquefiedpetroleumgasesisdescribedinPracticeD1265;theprocedureforsamplingfluidpowerhydraulicfluidsiscoveredinANSIB93.19andB93.44;theprocedureforsamplinginsulatingoilsisdescribedinPracticeD923;andtheprocedureforsamplingnaturalgasisdescribedinTestMethodD1145.Note3TheprocedureforspecialfuelsamplesfortracemetalanalysisisdescribedinanappendixtoSpecificationD2880.
【中国标准分类号】:E30
【国际标准分类号】:75_080;75_100
【页数】:18P.;A4
【正文语种】: