Designation:D6092−21StandardPracticeforSpecifyingStandardSizesofStoneforErosionControl1ThisstandardisissuedunderthefixeddesignationD6092;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverssizedesignationsandmaximumrangesinmassorgradationforstandardsizesforriprap,spalls,orbedding,orboth,usedforslopeprotectionofdamembankments,streambankerosioncontrol,bridgepiersandabutments.Sizesusedforouterharborstructuressuchasbreakwalls,revetments,confineddikeddisposalstructures(heretoforedescribedasarmorstone,coverstone,ordimensionstone)forwhichstonesizesrangebetween5and25tons,orthatrequirecutdimensionsforlayed-upstructuresarebeyondthescopeofthispractice.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesarerationalizedconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thispracticeoffersanorganizedcollectionofinforma-tionoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthispracticemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject’smanyuniqueaspects.Theword“Standard”inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecogn...
