Designation:D6404−99(Reapproved2014)StandardPracticeforSamplingVegetableMaterialsContainingTannin1ThisstandardisissuedunderthefixeddesignationD6404;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversobtainingrepresentativesamplesfromshipmentlotsofbotanicalmaterialscontainingtannin.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1517TerminologyRelatingtoLeather2.2ALCAMethod:J10SamplingVegetableMaterialsContainingTannin33.Terminology3.1Definitions:3.1.1FordefinitionsofgeneralleatherandtanningtermsusedinthispracticerefertoTerminologyD1517.3.1.2quartering—thetermappliedtoamethoddescribedinthispracticeofreducingthesizeofsampleswithoutimpairingtheirrepresentativequality.3.1.3tannin—anastringentsubstancefoundinthevariouspartsofplantssuchasbark,wood,leaves,nuts,fruits,roots,etc.3.1.4vegetabletannins—mixturesofsubstances(naturalproducts)obtainedfromplanttissuesbywaterextractionwhichhavethechemicalandphysicalpropertiesnecessarytoconvertanimalhidesandskinsintoleather.4.SummaryofPractice4.1Thispracticedescribesmethodsforobtainingrepresen-tativesamplesforanalysisfromshipmentsofvegetabletan-ningmaterialsandtanninextracts.5.SignificanceandUse5.1Thispracticeprovidesstandardproceduresforobtainingrepresentativesamplesofvariousmaterialsusedasasourceoftanninsforthetanningindustry.5.2Proceduresaredescribedforobtainingrepresentativesamplesofeconomicalandconvenientquantitiesfromalot,orsectionsofalot,ofmaterialf...
