Designation:D75/D75M−14AmericanAssociationStateHighwayandTransportationOfficialsStandardAASHTONo.:T2StandardPracticeforSamplingAggregates1ThisstandardisissuedunderthefixeddesignationD75/D75M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverssamplingofcoarseandfineaggre-gatesforthefollowingpurposes:1.1.1Preliminaryinvestigationofthepotentialsourceofsupply,1.1.2Controloftheproductatthesourceofsupply,1.1.3Controloftheoperationsatthesiteofuse,and1.1.4Acceptanceorrejectionofthematerials.NOTE1—Samplingplansandacceptanceandcontroltestsvarywiththetypeofconstructioninwhichthematerialisused.1.2Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthestandard.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.NOTE2—Thequalityoftheresultsproducedbythisstandardaredependentonthecompetenceofthepersonnelperformingtheprocedureandthecapability,calibration,andmaintenanceoftheequipmentused.AgenciesthatmeetthecriteriaofPracticeD3666aregenerallyconsideredcapableofcompetentandobjectivetesting/sampling/inspection/etc.UsersofthisstandardarecautionedthatcompliancewithPracticeD3666alonedoesnotcompletelyassurereliableresults.Reliableresultsdependonmanyfactors;followingthesuggestionsofPractice...
