ANSI/AASHTO/AWS D1.5-1996 桥梁焊接规程

上一篇: ANSI/ASME B107.25M-1996 老虎钳.性能试验方法
下一篇: ANSI/AWS B2.1-1-210-1996 主要用于管道的、在焊接或PWHT条件下、(M-1/P-1/S-1,1或2组)1/8到1-1/2英寸厚、INMS-1和ER70S-2碳钢的带熔化垫材的气保护钨极电弧焊的标准焊接程序规范(WPS)

标准名称：	磷铁化学分析方法红外线吸收法测定硫量
英文名称：	Methods for chemical analysis of ferrophorus The infrared absorption method for the determination of sulfur content
中标分类：	冶金 >> 金属化学分析方法 >> 钢铁与铁合金分析方法
ICS分类：	冶金 >> 铁合金
替代情况：	原标准号GB/T 8705.3-1988
发布日期：	2006-07-27
实施日期：	2006-10-11
首发日期：
作废日期：
出版社：	冶金工业出版社
出版日期：	2006-10-11
页数：	3页

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【英文标准名称】:StandardTestMethodforParticleSizeDistributionofMetalPowdersandRelatedCompoundsbyLightScattering
【原文标准名称】:用光散射作金属粉末和相关化合物的粒度分布测试的标准试验方法
【标准号】:ASTMB822-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:laserdiffraction;lightscattering;metalpowders;particlesizedistribution;powdermetallurgy;NumberCode19.120(Particlesizeanalysis.Sieving)
【摘要】:Reportedparticlesizemeasurementisafunctionofboththeactualparticledimensionandshapefactoraswellastheparticularphysicalorchemicalpropertiesbeingmeasured.Cautionisrequiredwhencomparingdatafrominstrumentsoperatingondifferentphysicalorchemicalparametersorwithdifferentparticlesizemeasurementranges.Sampleacquisition,handling,andpreparationcanalsoaffectreportedparticlesizeresults.5.1.1Itisimportanttorecognizethattheresultsobtainedbythistestmethod,oranyothermethodforparticlesizedeterminationusingdifferentphysicalprinciples,maydisagree.Theresultsarestronglyinfluencedbythephysicalprinciplesemployedbyeachmethodofparticlesizeanalysis.Theresultsofanyparticlesizingmethodshouldbeusedonlyinarelativesense;theyshouldnotberegardedasabsolutewhencomparingresultsobtainedbyothermethods.Lightscatteringtheoryhasbeenavailableformanyyearsforuseinthedeterminationofparticlesize.Severalmanufacturersoftestingequipmentnowhaveunitsbasedontheseprinciples.Althougheachtypeoftestingequipmentusesthesamebasicprinciplesforlightscatteringasafunctionofparticlesize,differentassumptionspertinenttoapplicationofthetheory,anddifferentmodelsforconvertinglightmeasurementstoparticlesize,mayleadtodifferentresultsforeachinstrument.Therefore,theuseofthistestmethodcannotguaranteedirectlycomparableresultsfromdifferenttypesofinstruments.Knowledgeoftheparticlesizedistributionofmetalpowdersisusefulinpredictingthepowder-processingbehaviorandultimateperformanceofpowdermetallurgyparts.Particlesizedistributionisrelatedcloselytotheflowability,moldability,compressibility,anddie-fillingcharacteristicsofapowder,aswellastothefinalstructureandpropertiesoffinishedpowdermetallurgy(P/M)parts.Thistestmethodisusefultobothsuppliersandusersofpowdersindeterminingtheparticlesizedistributionsforproductspecifications,manufacturingcontrol,development,andresearch.Thistestmethodmaybeusedtoobtaindataforcomparisonbetweenlotsofthesamematerialorforestablishingconformance,asinacceptancetesting.1.1Thistestmethodcoversthedeterminationoftheparticlesizedistributionbylightscattering,reportedasvolumepercent,ofparticulatematerialsincludingmetalsandcompounds.1.2Thistestmethodappliestoanalyseswithbothaqueousandnonaqueousdispersions.Inaddition,analysiscanbeperformedwithagaseousdispersionformaterialsthatarehygroscopicorreactwithaliquidcarrier.1.3Thistestmethodisapplicabletothemeasurementofparticulatematerialsintherangeof0.4to2000m,orasubsetofthatrange,asapplicabletotheparticlesizedistributionbeingmeasured.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:19_120
【页数】:3P.;A4
【正文语种】: