ASTM D1171-2016 Standard Test Method for Rubber Deterioration—Surface Ozone Cracking Outdoors or Chamber英文版

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1、Designation:D1171−16StandardTestMethodforRubberDeteriorationSurfaceOzoneCrackingOutdoors1(TriangularSpecimens)ThisstandardisissuedundertheÞxeddesignationD1171;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearofl

2、astrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scopeexposureasevidencedbytheappearanceofsurfacec

3、racks.Thetype,time,temperature,andotherconditionsofexposure1.1Thistestmethodpermitstheestimationoftherelativearenotgivenbutshallbeagreeduponbythepurchaserandtheabilityofrubbercompoundsusedforapplicationsrequiringsellerandshallbecompletelydescribedinthetestreports.resis

4、tancetooutdoorweathering.3.2Twotechniquesaredescribed,theexposureratingand1.2Thistestmethodisnotapplicabletomaterialsordinarilythequality-retentionrating.classedashardrubber,butisadaptabletomoldedorextrudedsoftrubbermaterialsandspongerubberforuseinwindow4.Significancean

5、dUseweatherstrippingaswellassimilarautomotiveapplications.4.1Moldedorextrudedrubberproductsmustwithstandthe1.3Thisstandarddoesnotpurporttoaddressalloftheeffectsofozonecrackingandoutdoorweatheringforsatisfac-safetyconcerns,ifany,associatedwithitsuse.Itisthetoryuse.Thist

6、estenablesasimplecomparisonofperformanceresponsibilityoftheuserofthisstandardtoestablishappro-tobemadeunderspeciÞedtestconditionsinanoutdoortest.priatesafetyandhealthpracticesanddeterminetheapplica-Nodirectcorrelationbetweentestperformanceandservicebilityofregulatoryli

7、mitationspriortouse.performancecanbeclaimedduetothewiderangeofserviceconditions.2.ReferencedDocuments2.1ASTMStandards:25.ApparatusD518TestMethodforRubberDeteriorationÑSurface5.1MountingMandrel—Awoodmandrel50mm(2in.)in3Cracking(Withdrawn2007)outsidediameter,suitablycoat

8、edwithsparvarnishoraclearNOTE1ÑTheproceduresinTestMethodD518havebeenincorporatedlacquer.Themandrelmaybesupportedbyany