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【英文标准名称】:StandardSpecificationforLaboratoryGlassVolumetricFlasks
【原文标准名称】:实验室用玻璃量瓶标准规范
【标准号】:ASTME288-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:flasks;glass;volumetric;Flasks(laboratory)--specifications;Glasslaboratoryapparatus--specifications;Laboratoryapparatus--specifications;Laboratoryvolumetricapparatus;Volumetriclaboratoryapparatus
【摘要】:1.1Thisspecificationcoversrequirementsforglassvolumetricflasksofprecisionandgeneral-purposegradessuitableforlaboratorypurposes.1.1.1ClassA8212;Eachflaskofprecisiongradeshallbemarkedwiththeletterx201C;Ax201D;tosignifycompliancewithapplicableconstructionandaccuracyrequirements.Flasksmaybemarkedwithanidentificationnumber(serialnumber)attheoptionofthemanufacturer.1.1.2ClassB8212;GeneralpurposeflasksareofthesamebasicdesignasClassAflasks.However,volumetrictolerancesforClassBflasksshallbewithintwicethespecifiedrangeallowedforClassAflasks.Theseflasksneednotbemarkedwiththeirclassdesignation.Note18212;Specificationsformicrovolumetricflasksinsizesfrom1mLto25mL,inclusive,aregiveninSpecificationE237.Note28212;TheTwelfthGeneral(International)ConferenceonWeightsandMeasuresredefinedthelitreasax201C;specialnameforthecubicdecimetre,x201D;butagreedtopermitcontinuanceofthetermslitre,millilitre,andmL,exceptinassociationwithmeasurementsofthehighestprecision.Forvolumetricglasswarethedifferencebetweentheoldandnewmeaningsoflitreisnegligible.Therefore,eithermLorcm3maybemarkedonwarecoveredbythisSpecification.1.1.3SpecialSizeFlasks8212;Precisiongradeflasksmaybemanufacturedwithnominalcapacitiesnotlistedinthisstandard.Suchflasksshallbeconsideredx201C;ClassAx201D;flasks,providedtheymeettheaccuracytoleranceofthenextlargestx201C;ClassAx201D;flaskappearinginTable1andcomplywiththemarkingrequirementsof1.1.1.1.1.4Wide-MouthFlasks8212;Requirementsforinsertionoftabletsorcapsulesforassaydilutionandtoaccommodateaccessoflargerdiameterpipetsrequirevolumetricflaskswithlargernecks.TheseflasksappearinTable2.Theseflasksshallconformtothemarkingrequirementsof1.1.1.Additionally,theaccuracytoleranceshallbemarkedoneachx201C;ClassAx201D;wide-mouthflask.1.1.5SpecialSizeWide-MouthFlasks8212;Precisiongradewide-mouthflasksmaybemanufacturedwithnominalcapacitiesnotlistedinthisstandard.Suchflasksshallbeconsideredx201C;ClassAx201D;flasksprovidedtheymeettheaccuracytoleranceofthenextlargestx201C;ClassAx201D;wide-mouthflaskappearinginTable2andthemarkingrequirementsof1.1.4.
【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