【英文标准名称】:Specificationforcompressednon-asbestosfibrejointing
【原文标准名称】:压缩的非石棉纤维垫片规范
【标准号】:BS7531-1992
【标准状态】:作废
【国别】:英国
【发布日期】:1991-02-28
【实施或试行日期】:1991-02-28
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Requirementsforthemanufacture,quality,finish,thicknessandtestingofmaterialthatdoesnotcontainasbestos.
【中国标准分类号】:Q23
【国际标准分类号】:23_040_80
【页数】:20P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforProximateAnalysisoftheAnalysisSampleofCoalandCokebyInstrumentalProcedures
【原文标准名称】:使用仪器测量法进行煤和焦炭分析样品近似值分析的标准试验方法
【标准号】:ASTMD5142-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:分析样品;试验方法;煤;焦炭
【英文主题词】:proximateanalysis;analysissample;coal;coke;instrumentalprocedures
【摘要】:Moisture,asdeterminedbytheinstrumentaltestmethod,isusedforcalculatingotheranalyticalresultstoamoisture-freebasisusingproceduresinPracticeD3180.Moisturepercentdeterminedbythistestmethodmaybeusedinconjunctionwiththeair-drymoisturelossdeterminedinMethodD2013andTestMethodD3302todeterminetotalmoistureincoal.Totalmoistureisusedforcalculatingotheranalyticalresultstoanas-receivedbasisusingPracticeD3180.Ashyield,asdeterminedbythistestmethod,istheresidueremainingafterburningthecoalandcokesamples.Volatilematteryield,whendeterminedashereindescribed,maybeusedto(1)establishtherankofcoals,(2)indicatecokeyieldoncarbonization,(3)providethebasisforpurchasingandselling,or(4)establishburningcharacteristics.Fixedcarbonisacalculatedvalue.Itisthedifferencebetween100andthesumofthepercentmoisture,ash,andvolatilematter.Allpercentsshallbeonthemoisturereferencebase.Moisture,ash,volatilematter,andfixedcarbonpercentsconstitutetheproximateanalysisofcoalandcoke.Note18212;Theashobtaineddiffersincompositionandamountfromthemineralconstituentspresentintheoriginalcoal.Incinerationcausesanexpulsionofallwater,thelossofcarbondioxidefromcarbonates,theconversionofironpyriteintoironoxidesandsulfuroxides,andotherchemicalreactions.Ashyield,asdeterminedbythistestmethod,candifferfromtheamountofashproducedinfurnaceoperationsorothercombustionsystemsbecauseincinerationconditionsinfluencethechemistryandamountofash.1.1Theseinstrumentaltestmethodscoverthedeterminationofmoisture,volatilematter,andash,andthecalculationoffixedcarbonintheanalysisofcoalandcokesamplespreparedinaccordancewithMethodD2013andPracticeD346.ResultsobtainedthroughtheuseoftheinstrumentaltestshavebeenshowntodifferfromthoseobtainedwithTestMethodsD3173,D3174,andD3175onsomecoalsandcokes.WherearelativebiasbetweentheinstrumentalmethodsandTestMethodsD3173,D3174,andD3175forproximateanalysisofcoalandcokeareshowntoexist,theinstrumentalresultsshallbecorrectedortheinstrumentcalibratedusingsamplesofknownproximateanalysis.TestMethodsD3173,D3174,andD3175shallbeconsideredtherefereetestmethods.Theinstrumentaltestmethodsarenotapplicabletothermogravimetricanalyzersusingmicrogramsizesamples.1.2Themoisturevaluedeterminedisusedforcalculatingotheranalyticalresultstoadrybasis.Whenusedinconjunctionwiththeairdrylossmoisture,asdeterminedinaccordancewithMethodD2013,TestMethodD3302,orPracticeD346,thecalculatedtotalmoisturecanbeusedtoconvertdrybasisanalyticalresultstotheas-receivedbasis.1.3Theresultoftheashdeterminationscanbeappliedintheultimateanalysis,PracticeD3176.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H32
【国际标准分类号】:75_160_10
【页数】:5P.;A4
【正文语种】: