Designation:D6575−14aStandardTestMethodforDeterminingStiffnessofGeosyntheticsUsedasTurfReinforcementMats(TRMs)1ThisstandardisissuedunderthefixeddesignationD6575;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthestiff-nessofgeosyntheticsusedasTurfReinforcementMats(TRM).1.2ThemethodisapplicabletoTRMsofanyfibercontentandanynumberofcomponents.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1388TestMethodforStiffnessofFabricsD1776PracticeforConditioningandTestingTextilesD4354PracticeforSamplingofGeosyntheticsandRolledErosionControlProducts(RECPs)forTestingD4439TerminologyforGeosyntheticsD5261TestMethodforMeasuringMassperUnitAreaofGeotextilesE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2FederalStandards:3CCC-T-191bTextileTestMethodsNo.5206.23.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1bendinglength,n:3.1.1.1general,adj—ameasureoftheinteractionbetweengeosyntheticweightandgeosyntheticstiffnessasshownbythewayinwhichageosyntheticbendsunderitsownweight.Itreflectsthestiffnessofageosyntheticwhenbentinoneplaneundertheforceofgravity,andisonecomponentofdrape.3.1.1.2Discussion—BendinglengthiscalleddrapestiffnessinFederalSpecificationCCC-T-191b.3.1.1.3specific,adj—t...
