【英文标准名称】:StandardTestMethodforGrindabilityofCoalbytheHardgrove-MachineMethod
【原文标准名称】:粉碎机法测定煤炭可磨性的标准试验方法
【标准号】:ASTMD409/D409M-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:可磨性;哈氏可磨指数;粉碎作用;煤产品;粉碎机
【英文主题词】:grindability;HardgroveGrindabilityIndex;pulverization;Coalproducts;Hardgrovemachinemethod
【摘要】:Thistestmethoddevelopsameasurementofgrindingorpulverizingcharacteristicsthatcanbeusedtoevaluatetheyield,orenergyinput,orboth,requiredinagrindingorpulverizingprocess,whichcanimpactawidevarietyofprocesses,includingcombustion,coke-making,liquefaction,andgasification.1.1Thistestmethodcoversthedeterminationoftherelativegrindabilityoreaseofpulverizationofcoalsincomparisonwithcoalschosenasstandards.Apreparedandsizedsamplereceivesadefiniteamountofgrindingenergyinaminiaturepulverizer,andthesizeconsistofthepulverizedproductisdeterminedbysieving.Theresultantsizeconsistisusedtoproduceanindexrelativetotheeaseofgrinding[HardgroveGrindabilityIndex(HGI)].1.1.1Somecoals,suchassomehigh-volatilebituminous,subbituminous,andlignitecoals,canundergophysicalchangeasthenaturalorseammoistureisreleasedduringhandlingandpreparation.Thischangeisoftensufficienttoalterthegrindabilitycharacteristicsthatwillbereportedwhentestedinthelaboratoryandcouldproducedifferentindicesdependentontheconditionsofdryingandthemoisturelevelofthe1.18x00D7;0.60mm(No.16x00D7;30)(seeTestMethodD4749)materialsusedforthetest.Therefore,therepeatabilityandreproducibilitycitedinthistestmethodmaynotapplyforthesehigh-volatilebituminous,subbituminous,andlignitecoals.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:73_040
【页数】:14P.;A4
【正文语种】:


【英文标准名称】:Surfacechemicalanalysis-Scanning-probemicroscopy-Measurementofdriftrate
【原文标准名称】:表面化学分析.扫描探针显微镜.漂移率的测定标准
【标准号】:ISO11039-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC201
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Chemicalanalysisandtesting;Definitions;Deviations;Drift;Finishes;Measurement;Measuringtechniques;Microscopy;Scanningelectronmicroscopes;Specification(approval);Surfaceproperties
【摘要】:
【中国标准分类号】:N32
【国际标准分类号】:71_040_40
【页数】:19P;A4
【正文语种】:英语