Designation:F1543−96(Reapproved2007)AnAmericanNationalStandardStandardSpecificationforShockAttenuationPropertiesofFencingSurfaces1ThisstandardisissuedunderthefixeddesignationF1543;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversshockabsorptionpropertiesoffencingsurfacesasmeasuredbyadroptest.Theminimumperformancestandardforshockabsorptionisdefined.Guide-linesforotherfeaturesandpropertiesoffencingsurfacesaredescribed.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisspecificationdoesnotpurporttoaddressallthesafetyconcerns,ifany,associatedwithfencingsurfacesandwillnotpreventallsurface-relatedinjuries.Itistheresponsi-bilityoftheuserofthesurfacestoestablishappropriatesafetyandhealthpractices,including,butnotlimitedto,footmovement,footwear(shoes),andtrainingpractices.Specificprecautionarystatementsaregivenin5.3.2.ReferencedDocuments2.1ASTMStandards:2E105PracticeforProbabilitySamplingofMaterials3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1acceleration(deceleration)—theinstantaneoustimerateofchangeofvelocity.Thisiseitherpositive(acceleration)ornegative(deceleration).3.1.2fencingsurface—theareaforperformingfencingbouts,competitions,oranyotherfencingexercises.Afencingsurface,usuallyreferredtoasthefencingstriporpiste,isdefinedintheU.S.FencingAssociation’s(USFA’s)rulebook.3Itmeasures1.8to2.0mwideby14mlong,oftenwithaddedwidthandlengthforrun-off,thatattheendsshouldbe1.5to2m.Thefencingsurfacemaybeanareaoutlinedbytapeorpaintonanexistingsurfaceoritmaybeaseparatestripthatcanbeplacedonanexistingsurface,suchasarubberrunnerorametallically-conductingmeshorsheetonagymfloor.Thisspecificationincludescompositearrangementsinwhich,forexample,agroundedmetallicstripisplacedontopofarubberstriporothershock-absorbinglayer,w...