Designation:C322−09(Reapproved2014)StandardPracticeforSamplingCeramicWhitewareClays1ThisstandardisissuedunderthefixeddesignationC322;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversproceduresforsamplingbulkandbaggedshipmentsofceramicwhitewareclays.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.SignificanceandUse2.1Sincemanytestsareperformedusingverysmallamountsofpowder,itismostimportantthatthetestportionsbeobtainedinastandardizedmanner.Thepracticesdescribedheretakeintoaccountthepossibilityofsegregationandvariabilityoftheceramicpowderincontainersofthevarioussizesandnumbers,bothindryandslurryforms.3.Sampling3.1Whereabulkshipmentconsistsoflumps,anumberofsamplesshallbetakenfromdifferentpartsoftherailcarortruckduringunloading,sothatthefinalsamplewillrepresentanaverageofallpartsoftheshipmentfromtoptobottom.Fora30-ton(27-Mg)unit,nolessthan20samplesofapproxi-mately10lb(4.5kg)eachshallbetakenfromdifferentpartsoftherailcarortruck.Thismaybedonebyremovalduringloadingorunloading,atspacedintervals.Thelumpsshallthenbebrokentopiecesnolargerthan4in.(102mm),inthelargestdimension,andtheseveralsamplesshallbemadeintoacompositelot,byturningwithashovelonacleanfloor.Thecompositeshallthenbequarteredorriffledtoprovidea10-lblaboratorysample.3.2Samplingofhoppercarorhoppertruckshipmentsistobedoneduringunloadingofthecarortruck.3.3Whereabulkshipmentconsistsofshreddedorcoarselygroundcla...
