【英文标准名称】:StandardTestMethodforTotalMoistureinCoal
【原文标准名称】:煤中总湿度的标准试验方法
【标准号】:ASTMD3302-2007ae1
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:煤;含量测定;燃料;湿度;固体燃料;测试
【英文主题词】:air-drying;air-dryingloss;coal;residualmoisture;totalmoisture
【摘要】: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.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:D20
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】: