IEC 60675 AMD 1-1998 家用直接电加热器.性能测量方法.第1次修订
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【英文标准名称】:Householdelectricdirect-actingroomheaters-Methodsformeasuringperformance;Amendment1
【原文标准名称】:家用直接电加热器.性能测量方法.第1次修订
【标准号】:IEC60675AMD1-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC59C
【标准类型】:()
【标准水平】:()
【中文主题词】:家用电器;直接加热器;试验;热电对流供暖;功能特性;加热器;房间加热器;电气工程
【英文主题词】:Classification;Definitions;Directheaters;Electrichouseholdappliance;Electrichouseholdappliances;Electricspaceheating;Electricalengineering;Functionalproperties;Heaters;Measurement;Portable;Properties;Radiantheat;Roomheatingappliances;Startingcurrent;Stationary;Surgecurrent;Testing;Warminguptime
【摘要】:
【中国标准分类号】:Y63
【国际标准分类号】:97_100_10
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforScratchHardnessofMaterialsUsingaDiamondStylus
【原文标准名称】:用金刚石触针测定材料划痕硬度的标准试验方法
【标准号】:ASTMG171-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:G02.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:scratch;scratchhardness;single-pointabrasion;stylus
【摘要】:Thistestmethodisintendedtomeasuretheresistanceofsolidsurfacestopermanentdeformationundertheactionofasinglepoint(stylustip).Itisacompanionmethodtoquasi-statichardnesstestsinwhichastylusispressedintoasurfaceunderacertainnormalloadandtheresultantdepthorimpressionsizeisusedtocomputeahardnessnumber.Scratchhardnessnumbers,unlikequasi-statichardnessnumbers,involveadifferentcombinationofpropertiesofthesurfacebecausetheindenter,inthiscaseadiamondstylus,movestangentiallyalongthesurface.Therefore,thestressstateunderthescratchingstylusdiffersfromthatproducedunderaquasi-staticindenter.Scratchhardnessnumbersareinprincipleamoreappropriatemeasureofthedamageresistanceofamaterialtosurfacedamageprocessesliketwo-bodyabrasionthanarequasi-statichardnessnumbers.Thistestmethodisapplicabletoawiderangeofmaterials.Theseincludemetals,alloys,andsomepolymers.Themaincriteriaarethatthescratchingprocessproducesameasurablescratchinthesurfacebeingtestedwithoutcausingcatastrophicfracture,spallation,orextensivedelaminationofsurfacematerial.Severedamagetothetestsurface,suchthatthescratchwidthisnotclearlyidentifiableorthattheedgesofthescratcharechippedordistorted,invalidatestheuseofthistestmethodtodetermineascratchhardnessnumber.Sincethedegreeandtypeofsurfacedamageinamaterialmayvarywithappliedload,theapplicabilityofthistesttocertainclassesofmaterialsmaybelimitedbythemaximumloadatwhichvalidscratchwidthmeasurementscanbemade.Theresistanceofamaterialtoabrasionbyasinglepointmaybeaffectedbyitssensitivitytothestrainrateofthedeformationprocess.Therefore,thistestisconductedunderlowstylustraversingspeeds.Useofaslowscratchingspeedalsominimizesthepossibleeffectsoffrictionalheating.Thistestusesmeasurementsoftheresidualscratchwidthafterthestylushasbeenremovedtocomputethescratchhardnessnumber.Therefore,itreflectsthepermanentdeformationresultingfromscratchingandnottheinstantaneousstateofcombinedelasticandplasticdeformationofthesurface.1.1Thisstandarddescribeslaboratoryproceduresfordeterminingthescratchhardnessofthesurfacesofsolidmaterials.Withincertainlimitations,asdescribedinthisguide,thistestmethodisapplicabletometals,ceramics,polymers,andcoatedsurfaces.Thescratchhardnesstest,asdescribedherein,isnotintendedtobeusedasameanstodeterminecoatingadhesion,norisitintendedforusewithotherthanspecifichemispherically-tipped,conicalstyli.1.2Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H22
【国际标准分类号】:17_040_20
【页数】:7P.;A4
【正文语种】:
【英文标准名称】:Informationtechnology-Datainterchangeon130mmrewritableandwrite-once-read-manyultradensityoptical(UDO)diskcartridges-Capacity:60Gbytespercartridge-Secondgeneration
【原文标准名称】:信息技术.130毫米可擦写型及一次写入多次阅读型超高密度光学(UDO)磁盘的数据交换.容量:每盘60GB.第二代
【标准号】:ANSI/INCITS/ISO/IEC11976-2009
【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】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:数据交换;数据介质;数据处理;数据存储;定义;电子数据处理(EDP);信息交换;信息处理;信息技术;光盘;特性;规范(验收);存储目标;蠕虫病毒
【英文主题词】:Dataexchange;Datamedia;Dataprocessing;Datastorage;Definitions;EDP;Informationinterchange;Informationprocessing;Informationtechnology;Opticaldisks;Properties;Specification(approval);Storagetarget;WORM
【摘要】:ISO/IEC11976:2008specifiesthemechanical,physical,andopticalcharacteristicsofa130mmopticaldiskcartridge(ODC)thatemploysthermo-opticalPhaseChangeeffectstoenabledatainterchangebetweensuchdisks
【中国标准分类号】:L64
【国际标准分类号】:35_220_30
【页数】:
【正文语种】:英语
