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【英文标准名称】:StandardSpecificationforLaboratoryGlassGraduatedBurets
【原文标准名称】:实验室玻璃分度滴定管的标准规范
【标准号】:ASTME287-2002(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:E41.01
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:burets;glass;graduated
【摘要】:1.1Thisspecificationcoversrequirementsforglassburetsofprecisionandgeneral-purposegradessuitableforlaboratoryuse.1.1.1ClassAEachburetofprecisiongrademaybemarkedwiththeletter"A"tosignifycompliancewithapplicableconstructionandaccuracyrequirementsinTable1andTable2.Eachburetmaybemarkedwithapermanentserialnumberattheoptionofthemanufacturer.1.1.2ClassBGeneralpurposeburetsareofthesamebasicdesignasClassAburets.However,volumetrictolerancesforClassBburetsshallbewithintwicethespecifiedrangeallowedforClassAburets.Theseburetsneednotbemarkedwiththeirclassdesignationorserialnumber.SeeTable1andTable3fortolerancesanddimensionalrequirements.Note1TheTwelfthGeneral(International)ConferenceonWeightsandMeasuresredefinedthelitreasa"specialnameforthecubicdecimetre,"butagreedtopermitcontinuanceofthetermslitre,millilitre,andmL,exceptinassociationwithmeasurementsofthehighestprecision.Forvolumetricglasswarethedifferencebetweentheoldandnewmeaningsoflitreisnegligible.Therefore,eithermLorcm3maybemarkedonwarecoveredbythisstandard.1.1.3ProductwithastatedcapacitynotlistedinthisstandardmaybespecifiedClassATolerancewhenproductconformstothetolerancerangeofthenextsmallervolumetricstandardproductlistedinTable1.
【中国标准分类号】:N64
【国际标准分类号】:71_040_20
【页数】:3P.;A4
【正文语种】:英语