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ASTM E300-2003 工业化学品抽样的标准规程

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【英文标准名称】:StandardPracticeforSamplingIndustrialChemicals
【原文标准名称】:工业化学品抽样的标准规程
【标准号】:ASTME300-2003
【标准状态】:现行
【国别】:
【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】:E15.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:sampling;simpleliquids;slurry;solids;statistical
【摘要】:Representativesamplesofindustrialchemicalsarerequiredforthedeterminationofchemicalandphysicalpropertieswhichareusedtoestablishstandardvolumes,prices,andcompliancewithcommercialandregulatoryspecifications.Theobjectiveofsamplingistoobtainasmallportion(spotsample)ofmaterialfromaselectedareawithinacontainerwhichisrepresentativeofthematerialintheareaor,inthecaseofrunningorall-levelsamples,asamplewhosecompositionisrepresentativeofthetotalmaterialinthecontainer.Aseriesofspotsamplesmaybecombinedtocreatearepresentativesample.ManualandAutomaticSamplingConsiderations8212;Theselectionofmanualorautomaticsamplingdevicesispartofestablishingasamplingplanappliedunderallconditionswithinthescopeofthispracticeprovidedthatthepropersamplingproceduresarefollowed.Bothtypesofsamplingarecommonlyusedforliquid,solid,andslurrysamplingandrequireadherencetothefollowing:5.3.1Anadequatefrequencyofsamplingmustbeselected.5.3.2Theequipmenttosupportmanualorautomaticsamplingsystemsmaybeobtainedcommercially,fabricatedfromthedesignspresentedinthispractice,orconstructedasneededtosatisfyprocessdesignorotherspecificrequirements.5.3.3Thesamplingequipmentmustbemaintainedonaregularbasis,andthesamplingplanadoptedmustbestrictlyfollowed.1.1Thispracticecoversproceduresforsamplingseveralclassesofindustrialchemicals.Italsoincludesrecommendationsfordeterminingthenumberandlocationofsuchsamples,toensuretheirbeingrepresentativeofthelotinaccordancewithacceptedprobabilitysamplingprinciples.1.2Althoughthispracticedescribesspecificproceduresforsamplingvariousliquids,solids,andslurries,inbulkorinpackages,theserecommendationsonlyoutlinetheprinciplestobeobserved.TheyshouldnottakeprecedenceoverspecificsamplinginstructionscontainedinotherASTMproductormethodstandards.1.3Theseproceduresarecoveredasfollows:SectionsStatisticalConsiderations7-11SimpleLiquids12-27Solids28-34Slurries36-41
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【英文标准名称】:Plastics.Determinationofvinylinvinylchlorideacetatecopolymers.
【原文标准名称】:塑料制品..氯乙烯-乙酸乙烯共聚物中乙烯基含量的测定
【标准号】:NFT51-027-1965
【标准状态】:作废
【国别】:法国
【发布日期】:1965-10-01
【实施或试行日期】:1965-10-01
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析和试验;乙酸基乙烯酯;化学分析;含量测定;乙烯基树脂;塑料;氯乙烯;共聚物
【英文主题词】:Chemicalanalysisandtesting;Copolymers;Determinationofcontent;Plastics;Vinylacetate;Vinylchloride
【摘要】:
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:其他


【英文标准名称】:ControlUnitsandAccessoriesforFireAlarmSystems
【原文标准名称】:火警系统用控制装置和组件
【标准号】:UL864BULLETINS-2004
【标准状态】:现行
【国别】:美国
【发布日期】:2004-01-01
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:PropoalsforANSI/UL864torevise(1)exceptionto55.2.1tochangetheretard-reset-restartperiodduration,(2)49.3toindicatethatground-faultannunciationisnotrequiredwherenormaloperationisnotaffectedbyasingleground-faultandFigure49.1editorially,and(3)reviseNACcompatibilityrequirementsinSections61.2and90.
【中国标准分类号】:C81
【国际标准分类号】:13_220_20
【页数】:
【正文语种】:英语