ASTM D4371-2006 测定煤的耐洗性的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingtheWashabilityCharacteristicsofCoal
【原文标准名称】:测定煤的耐洗性的标准试验方法
【标准号】:ASTMD4371-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D05.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:煤;测定;燃料;特性;固体燃料;试验
【英文主题词】:float/sinkofcoal;relativedensity;specificgravity;unitdensity;washabilityofcoal
【摘要】:1.1Thistestmethoddescribesproceduresfordeterminingthewashabilitycharacteristicsofcoarse-coalfractionsandfine-coalfractions.Eachsamplebeingtestedcanhavemorethanonecoarse-coalsizefractionandmorethanonefine-coalsizefraction(seeAnnexA1).Eachsuchsizefractionhasanuppersizelimitandalowersizelimit,neitherofwhichoverlapswiththenextlargernorsmallersizefraction.(SeeTestMethodD4749.)1.2While,ingeneral,thistestmethodhasusefulapplicationindeterminingthewashabilitycharacteristicsoflow-rankcoals,inthestrictestsense,itisnotnecessarilythemosttechnicallycorrecttestmethodtodeterminewashabilitycharacteristicsoflow-rankcoalsbecauseofproblemsrelativetothelossofmoisturethroughdryingduringsamplepreparationandanalysis.Methodsthataredirectlyapplicabletolow-rankcoalsaretobedeveloped.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesshowninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8andAppendixX1.
【中国标准分类号】:D21
【国际标准分类号】:75_160_10
【页数】:10P.;A4
【正文语种】: