【英文标准名称】:Roadvehicles.M14x1,25compactspark-plugswithflatseatingand19mmhexagonandtheircylinderheadhousing
【原文标准名称】:道路车辆.带平底座的19mm六角形的M14×1.25小型火花塞及其汽缸盖外罩
【标准号】:BSISO2346-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-03-06
【实施或试行日期】:2002-03-06
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:汽车;连接件;可控点火发动机;汽缸盖;尺寸公差;尺寸规格;发动机部件;点火系统;点火系统(内燃机);内燃机;摩托车;电动机;安装;道路车辆零部件;道路车辆;基座;火花点火;火花塞;火花点火发动机;规范(验收);规范;螺纹;公差(测量);扭矩;井
【英文主题词】:Automobiles;Connections;Controlledignitionengines;Cylinderheads;Dimensionaltolerances;Dimensions;Enginecomponents;Ignitionsystems;Ignitionsystems(internalcombustionengines);Internalcombustionengines;Motorvehicles;Motors;Mounting;Roadvehiclecomponents;Roadvehicles;Seatings;Sparkignitions;Sparkplugs;Spark-ignitionengines;Specification(approval);Specifications;Threads;Tolerances(measurement);Torque;Wells
【摘要】:ThisInternationalStandardspecifiesthemaincharacteristicsofM14×1,25compactspark-plugswithflatseatingand19mmhexagonandtheircylinderheadhousing,forusewithspark-ignitionengines.
【中国标准分类号】:T10
【国际标准分类号】:43_060_50
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationofRelativeDensityandAbsorptionofFine,CoarseandBlendedAggregateUsingCombinedVacuumSaturationandRapidSubmersion
【原文标准名称】:利用相结合的真空饱和和快速浸没法测定细集料、粗集料和混合料的相对密度和吸水率的标准试验方法
【标准号】:ASTMD7370-2009
【标准状态】:现行
【国别】:美国
【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】:D04.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorption;aggregate;apparentdensity;apparentrelativedensity;blendedaggregate;coarseaggregate;combinedaggregate;density;fineaggregate;relativedensity;specificgravity;Absorption;Aggregate(blended);Aggregate(coarse);Aggregate(fine)
【摘要】:Relativedensity(specificgravity)isthecharacteristicgenerallyusedforcalculationofthevolumeoccupiedbytheaggregateinvariousmixturescontainingaggregate,includingPortlandcementconcrete,bituminousconcrete,andothermixturesthatareproportionedoranalyzedonanabsolutevolumebasis.Relativedensity(specificgravity)isalsousedinthecomputationofvoidsinaggregateinTestMethodC29/C29M.Relativedensity(specificgravity)saturatedsurfacedry(SSD)isusediftheaggregateisatSSD,thatis,ifitsabsorptionhasbeensatisfied.Conversely,therelativedensity(specificgravity)oven-dry(OD)isusedforcomputationswhentheaggregateisdryorassumedtobedry.Apparentdensityandapparentrelativedensity(apparentspecificgravity)pertaintothesolidmaterialmakinguptheconstituentparticlesnotincludingtheporespacewithintheparticleswhichisaccessibletowater.Absorptionvaluesareusedtocalculatethechangeinthemassofanaggregateduetowaterabsorbedintheporespaceswithintheconstituentparticles,whenitisdeemedthattheaggregatehasbeenincontactwithwaterlongenoughtosatisfytheabsorptionpotential.Thelaboratorystandardforabsorptionisthatobtainedaftersubmergingdryaggregateforaprescribedperiodoftime.Note18212;Thereareothertestmethodsthathavebeenusedandcontinuetobeusedtodeterminetheseaggregateproperties:C127andC128.Thistestmethodmayresultinvaluesforthesepropertiesthatareclosetoordivergentfromvaluesfromothertestmethods.Note28212;Thequalityoftheresultsproducedbythisstandardaredependantuponthecompetenceofthepersonnelperformingtheprocedureandthecapability,calibration,andthemaintenanceoftheequipmentused.AgenciesthatmeetthecriteriaofPracticeD3666aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3666alonedoesnotcompletelyassurereliableresults.Reliableresultsdependonmanyfactors:followingthesuggestionsofPracticeD3666orsimilaracceptableguidelineprovidesameansofevaluatingandcontrollingsomeofthosefactors.1.1ThistestmethodcoversthedeterminationofrelativedensityandabsorptionoffineaggregatesbyMethodAandcoarseandblendedaggregatesbyMethodB.1.2ThevaluesarestatedinSIunitsandareregardedasthestandardunits.1.3Amulti-laboratoryprecisionandbiasstatementforcoarseandcombinedaggregatetestsinthisstandardhasnotbeendevelopedatthistime.Therefore,thisstandardshouldnotbeusedforacceptanceorrejectionofcoarseandcombinedaggregatematerialsforpurchasingpurposes.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_15
【页数】:8P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 冲压发动机参数符号 |
| 中标分类： |
航空、航天 >>
航天器及其附件 >>
航天器动力系统 |
| ICS分类： |
航空器和航天器工程 >>
航空航天发动机和推进系统
|
| 发布日期： | 1989-01-13 |
| 实施日期： | 1989-08-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 19页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 航空 航天 航天器及其附件 航天器动力系统 航空器和航天器工程 航空航天发动机和推进系统