Designation:D5519−15StandardTestMethodsforParticleSizeAnalysisofNaturalandMan-MadeRiprapMaterials1ThisstandardisissuedunderthefixeddesignationD5519;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thesetestmethodscovertheparticlesizeandmassanalysisofnaturalandman-maderiprapandrelatedmaterials,includingfilterstoneorcoarsebeddingmaterials.1.2Thesetestmethodsaregenerallyintendedforriprapandrelatedmaterials.Theyareapplicableformixturesofstonesscreenedfromnaturaldeposits,blastrock,processedmaterialsfromquarriedrock,orrecycledconcrete.Theyareapplicableforsizes3in.(75mm)andabove,withtheuppersizelimitedonlybyequipmentavailableforhandlinganddeterminingthemassoftheindividualparticles.1.3Fouralternateproceduresareprovided.Thereisawiderangeinthelevelofeffortandtheprecisionofthetestprocedures.Itisimportantforspecifierstoindicatethetestprocedure.Testreportsshouldclearlyindicatewhichprocedurewasused.NOTE1—Whileconductingthesetestmethods,itmaybeconvenienttocollectdataonotherattributes,suchastheamountofslabpiecesanddeleteriousmaterials.1.4AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythisstandard.1.4.1Forpurposesofcomparingmeasuredorcalculatedvalue(s)withspecifiedlimits,themeasuredorcalculatedvalue(s)shallberoundedtothenearestdecimalorsignificantdigitsinthespecifiedlimits.1.4.2Theproceduresusedtospecifyhowdataarecollected/recordedorcalculated,inthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatgenerallyshouldberetained.Theproce-duresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsider-ationsfortheuser’sobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreportedda...
