Designation:B822−17StandardTestMethodforParticleSizeDistributionofMetalPowdersandRelatedCompoundsbyLightScattering1ThisstandardisissuedunderthefixeddesignationB822;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationoftheparticlesizedistributionbylightscattering,reportedasvolumepercent,ofparticulatematerialsincludingmetalsandcom-pounds.1.2Thistestmethodappliestoanalyseswithbothaqueousandnonaqueousdispersions.Inaddition,analysiscanbeperformedwithagaseousdispersionformaterialsthatarehygroscopicorreactwithaliquidcarrier.1.3Thistestmethodisapplicabletothemeasurementofparticulatematerialsintherangeof0.4to2000µm,orasubsetofthatrange,asapplicabletotheparticlesizedistributionbeingmeasured.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2B215PracticesforSamplingMetalPowdersB243TerminologyofPowderMetallurgyB821GuideforLiquidDispersionofMetalPowdersandRelatedCompoundsforParticleSizeAnalysisE1617PracticeforReportingParticleSizeCharacterizationData2.2ISOStandard:3ISO13320-1ParticleSizeAnalysis—LaserDiffractionMethods—Part1:GeneralPrinciples3.Terminology3.1Definitions—DefinitionsofpowdermetallurgytermscanbefoundinTerminologyB243.3.2DefinitionsofTermsSpecifictoThi...
