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【英文标准名称】:StandardTestMethodforTotalMoistureinCoal
【原文标准名称】:煤炭中总水分的标准试验方法
【标准号】:ASTMD3302/D3302M-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】:D05.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:air-drying;air-dryingloss;coal;residualmoisture;totalmoisture;Coalproducts--moisture;Heatingtests--coal/coke;Moistureanalysis--coal/coke;Totalmoistureanalysis
【摘要】:Thecollectionandtreatmentofthesampleasspecifiedfortherefereemethodisintendedfortheexpresspurposeofdeterminingthetotalmoistureincoal.Thestandardisavailabletoproducers,sellers,andconsumersasamethodofdeterminationwhenothertechniquesormodificationsarenotmutuallyagreedupon.Thecommercialmethod,whichdeterminestotalmoisturecontentofthecrushedanddividedsample,isdesignatedasthemethodfortotalmoistureforroutinecommercialpractice.1.1Thistestmethodcoversthemeasurementofthetotalmoistureincoalasitexistsatthesite,atthetime,andundertheconditionsitissampled.Itisapplicabletocoalsasmined,processed,shipped,orusedinnormalcommercialpursuits.Itisnotapplicabletocoal-waterslurries,sludges,orpulverizedproductsunder0.5-mm-diametersievesize.Itisapplicabletocoalsofallrankswithintherecognizedlimitationsimposedbyoxidationanddecompositioncharacteristicsoflowerrankcoals.Becauseofitsempiricalnature,strictadherencetobasicprinciplesandpermissiveproceduresarerequiredforvalidresults(seeAppendixX1).Thiscompletestandardisavailabletoproducers,sellers,andconsumersasatotalmoisturemethodwhenotherproceduresormodificationsarenotmutuallyagreedon.1.2Sincecoalcanvaryfromextremelywet(water-saturated)tocompletelydry,specialemphasismustbeplacedonthesampling,samplepreparation,andthemoisturedeterminationitselftoensuretotalreliabilityofmeasurement.Therefore,thisstandardentailscollectionofthegrosssample,samplepreparation,andthemethodofdetermination.1.3Whileitisrecognizedthatsuchastandardmaybeunwieldyforroutineusageincommercialoperations,itcanprovideacommonbaseforagreementincasesofdisputeorarbitration.Thecompletestandardisreferredtoastherefereemethod.Embodiedinthestandardisthecommercialmethodstartingwiththecrushedanddividedsamplewhenthegrosssampleisnottoowettocrushanddivide.SeeTestMethodsD2961andD3173forothermoisturemethods.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D21
【国际标准分类号】:75_160_10
【页数】:7P.;A4
【正文语种】:英语