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1、Designation:D3656D3656M?13StardSpecificationfInsectScreeningLouverClothWovenfromVinylCoatedGlassYarns1ThisstardisissuedunderthefixeddesignationD3656D3656Mthenumberimmediatelyfollowingthedesignationindicatestheyearofigina

2、ladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ThisstardhasbeenapprovedfusebyagenciesoftheDepa

3、rtmentofDefense.1.Scope1.1Thisspecificationcoverstherequirementsfvinylcoatedglassyarninsectscreeninglouvercloth.1.2Thisspecificationisintendedtoassistultimateusersbydesignatingthesizestypesoftheseproductsthataregenerally

4、availableintheindustry.1.3Thisspecificationshowstheterminologyrequirementsf:1.3.1Commercialstardvinylcoatedglassyarninsectscreeningdesignedwovenprimarilyfinstallationinonanydwellingpatioscreeningenclosurebuildingstructur

5、efthepurposeofkeepingoutfliesmosquitoesmostinsects.1.3.2Vinylcoatedglassyarnlouverclothusedextensivelyinsoffitlouverventstokeepoutmostlargeinsectsbirdsairbnelitterwhileatthesametimeprovidingfadequateventilationaircircula

6、tion.1.4ThevaluesstatedineitherSIunitsinchpoundunitsaretoberegardedseparatelyasstard.Thevaluesstatedineachsystemmaynotbeexactequivalentstherefeeachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystems

7、mayresultinnonconfmancewiththestard.1.5ThefollowingprecautionarycaveatpertainsonlytothetestmethodsptionsSections819ofthisspecification.Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itisthe

8、responsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2D123TerminologyRelatingtoTextilesD1776PracticefCondi

9、tioningTestingTextilesD3374SpecificationfVinylCoatedGlassYarnsD3773TestMethodsfLengthofWovenFabricD3774TestMethodfWidthofTextileFabricD3775TestMethodfWarp(End)Filling(Pick)CountofWovenFabricsD3776TestMethodsfMassPerUnitA

10、rea(Weight)ofFabricD3786TestMethodfBurstingStrengthofTextileFabrics—DiaphragmBurstingStrengthTesterMethodD4028SpecificationfSolarScreeningWovenfromVinylCoatedFiberGlassYarnD4372SpecificationfFlameResistantMaterialsUsedin

11、CampingTentage(Withdrawn2002)3D4912TestMethodfFabricStabilityofVinylCoatedGlassYarnInsectScreeningLouverClothD4929TestMethodsfDeterminationofganicChlideContentinCrudeOilD7018TerminologyRelatingtoGlassFiberItsProducts2.2A

12、ATCCStards:4EvaluationProcedure1GrayScalefColChange2.3ANSIASQCStards:5ANSIASQCZ1.4SamplingProceduresfInspectionbyAttributesANSIASQCZ1.9SamplingProceduresTablesfInspectionVariablesfPercentNonconfming1Thisspecificationisun

13、derthejurisdictionofASTMCommitteeD13onTextilesisthedirectresponsibilityofSubcommitteeD13.18onGlassFiberitsProducts.CurrenteditionapprovedJan.12013.PublishedJanuary2013.iginallyapprovedin1978.Lastpreviouseditionapprovedin

14、2007asD3656–07.DOI:10.1520D3656_D3656M13.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Thelast

15、approvedversionofthishisticalstardisreferencedonwww.astm.g.4AvailablefromAmericanAssociationofTextileChemistsColistsP.O.Box12215ResearchTriangleParkNC27709.5AvailablefromAmericanNationalStardsInstitute(ANSI)25W.43rdSt.4t

16、hFloNewYkNY10036.Copyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates16.2PutUp—Vinylcoatedglassyarninsectscreeninglouverclothshallbeputuponrollsthatmaybeplacedincontainerswhosedime

17、nsionsshallbeagreeduponbetweenthepurchaserthesupplier.7.PhysicalRequirements7.1Appearance—Unlessotherwiseagreeduponbetweenthepurchaserthesupplierarollshallbedefectiveifitcontainstwomedefectsasdescribedin6.1.1.7.2Mesh—The

18、stardaveragemeshshallbeapproximatelyevenspacedasspecifiedinTable160.5meshper25mm[1in.].Therearenotolerancerequirementswithin13mm[0.5in.]oftheselvage.7.3RollLength—EachrollofinsectscreeninglouverclothcomplyingwithSpecific

19、ationD3656shallcontain30linearm?00.6m[100linearft?02.1ft].7.4Width—ThestardaveragerollwidthshallbeasspecifiedinTable17?0mm[0.25in.?0in.].7.5MassperUnitArea—TheminimumaveragemassperunitareafeachclassshallbeasspecifiedinTa

20、ble3.7.6FlameResistance—Thereshallbenopropagationofflamealonganyspecimenflongerthan10safterremovaloftheflamesourcenosinglespecimenmaypropagateflamealongitsentirelengthinanytimeincrement.7.7FabricStability—Theyarnsshallbe

21、bondedateachcontactpoint.ThefabricstabilityofthefinishedproductshallbedeterminedinaccdancewithTestMethodD4912meettherequirementsasspecifiedinTable3.7.8BurstingStrength—Theminimumaverageburstingstrengthofthefinishedproduc

22、tinitsiginalstateafter480hofexposuretocolstabilityafteracceleratedweatheringasdirectedinSection19shallbeasspecifiedinTable3.7.9StiffnessIndex—TheminimummaximumaveragestiffnessvaluesarereferencedinTable4.7.10ColStabilitya

23、fterAcceleratedWeathering—Thechangefromtheiginalcolofthestardgraycoalafter480hofacceleratedweatheringexposureshallbenogreaterthanstep3after960hofacceleratedweatheringexposureshallbenogreaterthanstep2ontheAATCCGrayScalefe

24、valuatingchangeincol.NOTE1—Useofothertypesofweatheringapparatusmaygiveweatheringacteristicsthatarenotequivalenttothepreferredapparatus.7.10.1Exposureperiodsacceptablechangesincolotherthanthestardgraycoalshallbeasagreedup

25、onbetweenthepurchaserthesupplier.7.11FvinylcoatedglassyarninsectscreeninglouverclothnotlistedinTable1thephysicalpropertiesshallbeagreeduponbetweenthepurchaserthesupplierexceptasnotedin6.2.TESTMETHODS8.Conditioning8.1Cond

26、itionthelabatysampleswithoutpreconditioningfaperiodofatleast5hintheatmosphereftestingglasstextilesasdirectedinPracticeD1776unlessotherwisespecified.TABLE2ExamplesofDefectsABBiasbowedfilling:Fwidths#1220mm[48in.]$13mm[0.5

27、in.]SlacktightselvageABFwidths1220mm[48in.]$25mm[1.0in.]Splice—methanoneina300mm2[1ft2]areaBBrokenmissingstr(endpick)ABSplicemethan25mm[1in.]inlengthBDamagedselvageextendingintothebodyofthescreeningBSplicenotwellmadeshow

28、ingtailsBHeavystrABSpotstainstreakABJerkedinfillingsloughoffkinkyfillingABThinstrABColbsBTightstr(endpick)ABUncoatedyarnsBAFdefinitionsoftermsusedinthistablerefertoTerminologyD123.BAtnmalinspectiondistanceapproximately90

29、0mm[3ft].TABLE3MinimumSampleAverageMassStrengthPropertiesPropertyInsectScreeningLouverClothClass1Class2Class21816Mesh25.4mm[1in.]1814Mesh25.4mm[1in.]2020Mesh25.4mm[1in.]88Mesh25.4mm[1in.]Massperunitareagm2[ozyd2]102[3.0]

30、146[4.3]176[5.2]68[2.0]FabricStability50mmN[2in.lbf]Warp36[8]44[10]53[12]22[5]Fill27[6]36[8]44[10]22[5]Minimumaverageburstingstrengthbefeafter480hexposureAkPa[psi]448[65]690[100]AAfter480hexposureasdirectedinSection17.TA

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