摩擦系数测试用基物表面制备的规程(ASTM-D4103-1990(2009))

Designation:D4103−90(Reapproved2009)StandardPracticeforPreparationofSubstrateSurfacesforCoefficientofFrictionTesting1ThisstandardisissuedunderthefixeddesignationD4103;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThispracticecoversproceduresforthepreparationofOVCT(OfficialVinylCompositionTile)andwoodpanelsforsubsequentuseinteststomeasurethecoefficientoffriction.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1436TestMethodsforApplicationofEmulsionFloorPolishestoSubstratesforTestingPurposes3.SignificanceandUse3.1Thereliabilityofanyofthepracticesusingpanelspreparedbytheseproceduresmaybedependentuponthemannerandcareinwhichthetestpanelsareprepared.Havingthesepracticesinasingleprocedureeliminatesthenecessityforcoveringthesedetailsinallofthepracticeswhereinthepanelsareused.4.TestPanels(OVCT)4.1PreparationofOVCTforTestingEmulsionFloorPolishes—Forinterlaboratoryandspecificationtesting,tilesofOVCTshallbeused.3Thetilesarepreparedforuseasfollows:4.1.1ThoroughlyscruballtilesusingNo.00steelwoolandanysuitableaqueoustypewaxremoverorstripper.Scrubhardtohelpsmoothouthighandlowspotsonthetile.Rinsewellwithclearwater,toweldry,andairdryfor15to30mininarackthatallowsairtoreachbothsidesofthetile.4.1.2ApplytwocoatsofanysuitablefloorpolishusinganymethodasprescribedinSection5.Allowtodry2hbetweencoatsandaminimumofanovernightdry(15to16h)afterthesecondcoat.4.1.3Thenextday,stripoffallthepolishfromthetilesfollowingtheprocedureusedin4.1.1.4.1.4Repeatthecoating(4.1.2)andstripping(4.1.1)opera-tionsfourmoretimes.Atotaloftencoatsofpolishwillthenhavebeenappliedandremoved.NOTE1—Thesetilesmaybeusedandreusedfortestingmanytimesafterhavingbeenpreparedonceinaccordancewith4.1.1-4.1.4.Tilesshouldbediscardedwhentheyshowexcessivewearorwhenerraticresultsareobtainedwhenusedwithtestingdevices.Atleast25testscanberunbeforethiswillbenoticed.4.1.5Whenscrubbingthetilesitisoftenfoundthattheybecomedistortedandarenolongerflat.Anyofthedevicesusedformeasuringcoefficientoffrictionwillgivepoorreproducibilityifthetilesarenotflat.Therefore,itisrecom-mendedthatthetilesbeflattenedpriortocoatingforatest.Thefollowingprocedureissuggested:4.1.5.1Stripthetilesofanypreviouspolishusingtheproceduregivenin4.1.1.(Iftheprocedures4.1.1-4.1.4havebeenfollowedexactly,thisshouldnotbenecessary.)Rinsewellwithclearwater,toweldry,andairdryfor15to30mininarackthatallowsairtoreachbothsidesofthetile.4.1.5.2Pilethetilesfacetofaceandbacktobackonapieceofglassslightlylargerthanthetiles.4.1.5.3Placethetilesontheglassinanovenat105to115°F(40.6to46.1°C)for2to21⁄2h.4.1.5.4Removetheentirepilefromtheovenandletcool,stillontheglass,atleastovernight(15to16h)atroomtemperature(approximately73°F(22.8°C)).4.1.5.5Thetilesarenowreadyforcoatingwiththetestpolishes.5.ApplicationofTestPolish5.1Applyonecoatoftheemulsionpolishtobetested,usinganyofthefivemethodsdescribedinMethodD1436.After1ThispracticeisunderthejurisdictionofASTMCommitteeD21onPolishesandisthedirectresponsibilityofSubcommitteeD21.06onSlipResistance.CurrenteditionapprovedMarch1,2009.PublishedJuly2009.Originallyapprovedin1982.Lastpreviouseditionapprovedin2002asD4103–90(2002).DOI:10.1520/D4103-90R09.2ForreferencedASTMstandards,visittheASTMwebsite,@astm.org.ForAnnualBookofASTMStandardsvolumeinformation,refertothestandard’sDocumentSummarypageontheASTMwebsite.3OVCTisOfficialVinylCompositionTile.ThesolesourceofsupplyoftheapparatusknowntothecommitteeatthistimeisChemicalSpecialtiesManufac-turersAssn.,1001ConnecticutAve.,N.W.,Washington,D.C.20036.Ifyouareawareofalternativesuppliers,pleaseprovidethisinformationtoASTMInterna-tionalHeadquarters.Yourcommentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommittee,2whichyoumayattend.Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959.UnitedStates1CopyrightbyASTMInt'l(allrightsreserved);WedMar2316:54:12EDT2016Downloaded/printedbyZhejiangUniversity(ZhejiangUniversity)pursuanttoLicenseAgreement.Nofurtherreproductionsauthorized.coating,placethetileinaverticalposition.Ifattheendof10minthereisabeadofpolishatthebottomofthetile,wipeitoffandallowthetiletodryinthisverticalpositionfor2hatstandardconditions.(SeeSection3ofTestMethodD1436.)5.1.1Reversethetile,toptobottom(rotatetile180°)andapplyasecondcoatinaccordancewithTestMethodD1436asthefirst.Thisrotationwillequalizethefilmthickness.Allowthesecondcoattodry18to24hatstandardconditions(seeSection3ofTestMethodD1436)beforetesting.5.2Regardlessofthemethodusedforcoatingtesttile,onlyonemethodshallbeusedifaseriesoftestsarebeingrunonasinglepolishoragroupo