【英文标准名称】:StandardPracticeforSamplingPitch
【原文标准名称】:硬沥青的采样
【标准号】:ASTMD4296-1983(2004)
【标准状态】:现行
【国别】:
【发布日期】:1983
【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】:D02.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:施工材料;屋顶层;屋顶;沥青;水密材料;屋面油毡;抽样方法;沥青制品;工艺;建筑;硬沥青(石油产品)
【英文主题词】:pitch;sample
【摘要】:Samplingisasimportantastesting.Ifthesamplingisimproperlydone,thesampleofthematerialwillbeinerror,andtheanalysiswillnotrepresentthetruepropertiesofthematerial,anditmaybeimpossibleorimpracticabletotakeanothersample;whereas,ifthesampleisproperlytakenandtheanalysisisinerror,anotheranalysiscanreadilybemadeoftheoriginalsample.Samplesmaybetakenforeitherofthefollowingtwopurposes:4.2.1Torepresentasnearlyaspossibleanaverageofthebulkofthematerialssampled,or4.2.2Toascertainthemaximumvariationincharacteristicswhichthematerialpossesses.Agoodsamplingplanhasthefollowingcharacteristics:4.3.1Itprotectstheconsumeragainsttheacceptanceofabadbatchofmaterial.4.3.2Itprotectstheproduceragainsttherejectionofagoodbatchofmaterial.4.3.3Itgiveslong-rangeprotectiontotheconsumer.4.3.4Itencouragestheproducertokeephisprocessincontrol.4.3.5Itminimizesthecostofsampling,inspectionoftesting,andadministration.4.3.6Itprovidesinformationconcerningthequalityoftheproduct.SamplingIntegrity8212;Whenonetakesasample,oneisattemptingtorepresentabatchorlotofmaterialwiththatsample.Differentformsofpitch,andpitchindifferenttypesofcontainers,needtohavedifferentsamplingplansandappropriatesamplingequipment.Eachsamplingplanshouldbedesignedsothatitaccomplishesitsobjective,whichistoascertainthecharacteristicsorqualityofabatchorlotofmaterial.1.1Thispracticecoversproceduresforsamplingpitchatpointsofmanufacture,storage,anddelivery.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection10.
【中国标准分类号】:E43
【国际标准分类号】:91_100_50
【页数】:10P.;A4
【正文语种】:
基本信息
| 标准名称： | 机械式深温计 |
| 英文名称： | Mechanical bathythermograph |
| 中标分类： |
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| 替代情况： | 原标准号ZB Y253-1984 |
| 发布日期： | |
| 实施日期： | 1985-02-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 10页 |
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