【英文标准名称】:StandardTestMethodforSingle-StageTotalMoistureLessthan15%inCoalReducedto2.36-mm(No.8Sieve)Topsize
【原文标准名称】:(8号)2.36毫米顶筛煤中单级总湿度低于15%的标准试验方法
【标准号】:ASTMD2961-2002(2007)
【标准状态】:现行
【国别】:
【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】:D05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:含量测定;煤;试验;固体燃料;潮气;燃料
【英文主题词】:totalmoisture;coal;topsize
【摘要】:Themeasurementoftotalmoistureisrequiredtodeterminewhethercoalmeetscommercialorenvironmentalspecifications,orboth.Withinthelimitationsprescribedinthescope,thistestmethoddescribesaprocedurefordeterminationoftotalmoisturethatrequireslesstimethantheproceduresdescribedinTestMethodD3302.1.1Thistestmethodcoversasingle-stageprocedureforthedeterminationoftotalmoisturelessthan15%incoalreducedto2.36-mm(No.8sieve)topsize.Thistestmethodisfordeterminationoftotalmoistureonly.Materialssubjectedtothistestshallnotbeusedinthedeterminationofothertestparameters.Itisrecognizedthattheconditionsofthetestcanincreasethepotentialforsignificantoxidationeffectsonsomecoals.Iftheoxidationpotentialisofconcern,theuseofthissingle-stagemethodshallinvolveprioragreementbetweenthepartiesinvolved.Thistestmethodshallnotbeconstruedastherefereestandardtestmethodfortotalmoisture.Forrefereepurposes,usersofthistestmethodarereferredtoTestMethodD3302formoisturedeterminationmethodswhicharenotassusceptibletooxidationeffects.1.2Statisticalanalysisofdatafromseveralsourcesindicatesthatata95%confidencelevel,thereisstatisticallynosignificantdifferencebetweenthemeanvalueoftheresultsobtainedbyD2961andD3302(thatis,nobiasisdetectedbetweenthetwomethodsatthe95%confidencelevel)formoisturelevelsbetween1.4%and15.8%.Thesetwotestmethodswerenotcomparedinthisstudyforsomeranksofcoalincludingligniteandanthracite.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D21
【国际标准分类号】:75_160_10
【页数】:2P.;A4
【正文语种】: