ANSI/ASHRAE 34s-2005 制冷剂的名称与符号和安全分类

上一篇: ANSI/ASHRAE 34r-2005 制冷剂的标识和安全分类
下一篇: ANSI/ASHRAE 34o-2005 制冷剂标示和安全分类

【英文标准名称】:StandardTestMethodforQuantitativelyMeasuringtheEffectofThermalShockandThermalCyclingonRefractories
【原文标准名称】:耐火材料热冲击效应和热循环效应定量测量的标准试验方法
【标准号】:ASTMC1171-2005(2011)
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C08.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:挠折模量;耐火材料;音速;热循环
【英文主题词】:modulusofrupture;refractories;sonicvelocity;thermalcycling
【摘要】:Thistestmethodindicatestheabilityofarefractoryproducttowithstandthestressgeneratedbysuddenchangesintemperature.Becausetherecommendedfurnacetemperatureofthiscyclingtestis1200x00B0;C(2190x00B0;F),thistestmethodmaynotindicatetheabilityofarefractoryproducttowithstandcyclingathigherorlowertemperatures,especiallyiftheexistingmorphologyoftherefractoryproductchanges.Thistestmethodisusefulforresearchanddevelopment,aswellasforcomparingrefractoryproducts.Theprecisionshouldbeconsideredwhenusingthistestforspecificationpurposes.1.1Thistestmethodisusedfordeterminingthestrengthlossorreductionincontinuity,orboth,ofprism-shapedspecimenswhicharecutfromrefractorybrickorshapesandsubjectedtothermalcycling.1.2Thestrengthlossismeasuredbythedifferenceinmodulusofrupture(MOR)betweenuncycledspecimensandthespecimenssubjectedtothermalcycling.1.3Thereductioninstructuralcontinuityisestimatedbythedifferenceinsonicvelocitybeforeandafterthermalcycling.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:17_200_10;81_080
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:StandardGuideforDefiningandRatingtheMicrostructureofHighCarbonBearingSteels
【原文标准名称】:高碳轴承钢微观结构的定义和等级的标准指南
【标准号】:ASTMA892-2009
【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】:A01.28
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:减磨轴承
【英文主题词】:antifrictionbearings;bearingsteel;chromiumalloysteel;metallography;Carbides;Carbonsteel;Lamellarstructures;Metallographicanalysis/inspection;Microscopicexamination--metals/alloys;Microstructures;Opticalmaterials/properties/tests;Photom
【摘要】:1.1Thisguidecoversthedescriptionofcarbidestructuresinannealedhighcarbonbearingsteels.1.2Includedisaguideforratingsteelspecimensbyagradedseriesofphotomicrographsshowingtheincidenceofcertainconditions.1.3Thereferencephotomicrographsaregradedillustrationsofannealedcarbidescategorizedbysize,network,andlamellarcontent(shape).1.4Thisguideistofacilitatecommunicationanddescriptionofmicrostructure.Itdoesnotestablishlimitsofacceptability.Suchlimitsareamatterofagreementbetweenuserandproducer.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H40
【国际标准分类号】:77_140_20
【页数】:2P.;A4
【正文语种】:英语