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【英文标准名称】:Hexagonnuts,style2,withmetricfinepitchthread-ProductgradesAandB
【原文标准名称】:六角螺母,2型米制细牙螺纹产品等级A和B级
【标准号】:ISO8674-1999
【标准状态】:作废
【国别】:国际
【发布日期】:1999-08
【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/TC2
【标准类型】:()
【标准水平】:()
【中文主题词】:公差(测量);交货条件;特性;验收规范;螺纹形状;优先尺寸;螺母;尺寸;规范;米制的;米制螺纹;公称尺寸;螺距;名称与符号;紧配合螺纹;紧固件;六角螺母;对边宽度;ISO微型螺纹;螺纹;六角头紧固件
【英文主题词】:Acceptancespecification;Close-fitthreads;Deliveryconditions;Designations;Dimensions;Fasteners;Hexagonnuts;Hexagonal-headfasteners;ISOminiaturescrewthreads;Metric;Metricscrewthreads;Nominalsizes;Nuts;Preferredsizes;Properties;Specifications;Threadforms;Threadpitch;Threads;Tolerances(measurement);Widthacrossflats
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsofhexagonnuts,style2,withmetricfinepitchthread,withnominalthreaddiametersdfrom8mmuptoandincluding36mm,withproductgradeAforsizesduptoandincluding16mmandproductgradeBforsizesdover16mm.If,inspecialcases,specificationsotherthanthoselistedinthisInternationalStandardarerequired,theyshouldbeselectedfromexistingInternationalStandards,forexampleISO724,ISO898-6,ISO965-1andISO4759-1.Coarsethreadhexagonnuts,style2,accordingtoISO4033shouldbethefirstchoice.NOTEForhexagonnuts,style1,withfinepitchthread,seeISO8673.
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:5P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforGrindabilityofCoalbytheHardgrove-MachineMethod
【原文标准名称】:粉碎机法测定煤炭易磨性的标准试验方法
【标准号】:ASTMD409/D409M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:粉碎易磨性指数(HGI);粉碎^DOI:^INDEXTERMS:Coalproducts;可磨性;粉碎机方法;过滤分析-煤炭/焦炭
【英文主题词】:grindability;Hardgrove-GrindabilityIndex(HGI);pulverization;Coalproducts;Grindability;Hardgrovemachinemethod;Sieveanalysis--coal/coke
【摘要】:Thistestmethoddevelopsameasurementofgrindingorpulverizingcharacteristicsthatcanbeusedtoevaluatetheyield,orenergyinput,orboth,requiredinagrindingorpulverizingprocess.1.1Thistestmethodcoversthedeterminationoftherelativegrindabilityoreaseofpulverizationofcoalsincomparisonwithcoalschosenasstandards.Apreparedandsizedsamplereceivesadefiniteamountofgrindingenergyinaminiaturepulverizer,andthesizeconsistofthepulverizedproductisdeterminedbysieving.Theresultantsizeconsistisusedtoproduceanindexrelativetotheeaseofgrinding(HardgroveGrindabilityIndex(HGI)).1.1.1Somecoals,suchassomehigh-volatilebituminous,subbituminous,andlignitecoals,canundergophysicalchangeasthenaturalorseammoistureisreleasedduringhandlingandpreparation.Thischangeisoftensufficienttoalterthegrindabilitycharacteristicsthatwillbereportedwhentestedinthelaboratoryandcouldproducedifferentindicesdependentontheconditionsofdryingandthemoisturelevelofthe1.18-mmby600-x03BC;m(No.16x00D7;No.30)(seeTestMethodD4749)materialsusedforthetest.Therefore,therepeatabilityandreproducibilitycitedinthistestmethodmaynotapplyforthesehigh-volatilebituminous,subbituminous,andlignitecoals.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Itisrecognizedthatthetermweightisconsideredequivalenttomassasusedinthistestmethod.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:73_040
【页数】:17P.;A4
【正文语种】: