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ID:22981047
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时间:2018-11-02
《ASTM D1171-2016 Standard Test Method for Rubber Deterioration—Surface Ozone Cracking Outdoors or Chamber英文版》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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