Designation:D6575/D6575M−16StandardTestMethodforDeterminingStiffnessofGeosyntheticsUsedasTurfReinforcementMats(TRMs)1ThisstandardisissuedunderthefixeddesignationD6575/D6575M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthestiff-nessofgeosyntheticsusedasTurfReinforcementMats(TRM).1.2ThemethodisapplicabletoTRMsofanyfibercontentandanynumberofcomponents.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1388TestMethodforStiffnessofFabricsD1776/D1776MPracticeforConditioningandTestingTex-tilesD4354PracticeforSamplingofGeosyntheticsandRolledErosionControlProducts(RECPs)forTestingD4439TerminologyforGeosyntheticsD6566TestMethodforMeasuringMassperUnitAreaofTurfReinforcementMatsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2FederalStandards:3CCC-T-191bTextileTestMethodsNo.5206.23.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1bendinglength,n:3.1.1.1general,adj—ameasureoftheinteractionbetweengeosyntheticweightandgeosyntheticstiffnessasshownbythewayinwhichageosyntheticbendsunderitsownweight.Itreflectsthestiffnessofageosyntheticwhenbentinoneplaneundertheforceofgravity,andisonecomponentofd...
