Designation:D8249−19StandardPracticeforUseofRotaryKilnProducedPorousCeramicasaMineralAmendmentinTopsoilUsedforLandscapingandRelatedPurposes1ThisstandardisissuedunderthefixeddesignationD8249;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthematerialcharacteristics,physi-calrequirements,andsamplingappropriateforthedesignationoftherotarykilnproducedporousceramicmaterialasamineralamendment.Theporousceramicmaterialcanbeusedtoreplacethesandcontentofatopsoiloritcanbeblendedintoanexistingtopsoil.Typically5-20%bymassofporousceramicsareusedwhenblendingwithoraddingtoatopsoil.1.2Thepotential/successofatopsoilamendmentismeasured/determinedbyitsabilitytoprovideorenhancesomeorallofthedesiredproperties/characteristicsofthetopsoilthatmaybedeficientintheunamendedtopsoil.1.3Soilstypicallyconsistofthreecomponents:water,airandsolids.Solidscanbefurtherdividedintotwosub-components:organicmatter,suchaspeat,muckorotherdecayedmatter,andinorganicmineralmatter,suchasclay,siltandsand.Porousceramicfallsintotheinorganicmineralmattersub-componentandisgenerallyusedinhorticulturaltopsoilapplicationsasasubstitute/alternativeoradditionforthesandcomponentofsoil.SeeSpecificationD5268,Table1.1.4Units—ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformationonlyandarenotconsideredstandard.Report-ingoftestresultsinunitsotherthanSIshallnotberegardedasnonconformancewiththisstandard.1.5AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythistestmethod.1.5.1Theproceduresusedtospecifyhowdataarecollected/recordedandcalculatedinthestandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatgenerallyshouldberet...
