首页 ASTM D1000

ASTM D1000

举报
开通vip

ASTM D1000ThisinternationalstandardwasdevelopedinaccordancewithinternationallyrecognizedprinciplesonstandardizationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecommendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoT...

ASTM D1000
ThisinternationalstandardwasdevelopedinaccordancewithinternationallyrecognizedprinciplesonstandardizationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecommendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.Designation:D1000−17StandardTestMethodsforPressure-SensitiveAdhesive-CoatedTapesUsedforElectricalandElectronicApplications1ThisstandardisissuedunderthefixeddesignationD1000;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.ScopeOilResistance116–122PunctureResistance123–1281.1ThesetestmethodscoverproceduresfortestingResistancetoAcceleratedAging(HeatandMoisture)129–139pressure-sensitiveadhesive-coatedtapestobeusedaselectri-Sampling4calinsulation.Thesetapesareclassifiedasfollows:SpecimenPreparation5ThermosettingProperties77–821.1.1Class1—Non-elastomericbackingsmadefrommate-Thickness21–27rialssuchas:UnwindForceatRoomTemperature54–65UnwindForceatLowTemperatures54–65Paper,flatorcreped,Width11–20Fabric,uncoatedorcoated,Celluloseesterfilms,NOTE1—TheseproceduresapplytobothClass1andClass2tapesPolyethyleneterephthalate(polyester)films,exceptasnotedabove.Fluorocarbonpolymerfilms,Compositefilamentfilms,1.4Thisisafire-testresponsestandard(seeSection104).Polyamidefilms,Polyimidefilms,and1.5ThevaluesstatedinSIunitsarethestandard,unlessCombinationsthereof.otherwisenoted.Ifavalueformeasurementisfollowedbya1.1.2Class2—Elastomericbackingsthatarecharacterizedvalueininch-poundorEnglishunitsinparentheses,itislikelybybothhighstretchandsubstantialrecovery.Thesebackingsthatthesecondvaluewillonlybeapproximateanditisforaremadefrommaterialssuchas:informationonly.Thefirststatedvalueisthepreferredunit.Vinylchlorideandco-polymers,NOTE2—ThesetestmethodsaresimilartoIEC60454–3,butmaydifferVinylidenechlorideandco-polymers,andsometimesinsomedetails.Polyethyleneandco-polymers.1.6Thisstandarddoesnotpurporttoaddressallofthe1.2TestlaminatesofClass1andClass2backingsaccord-safetyconcerns,ifany,associatedwithitsuse.ItistheingtoClass1testmethods.responsibilityoftheuserofthisstandardtoestablishappro-1.3Theproceduresappearinthesectionsindicatedbelowpriatesafetyandhealthpracticesanddeterminetheapplica-andinalphabeticalorder:bilityofregulatorylimitationspriortouse.ForspecifichazardsAdhesionStrengthtoSteelandBackingatRoomTemperature46–53seeSection3.AdhesionStrengthtoSteelandBackingatLowTemperatures46–531.7Thisinternationalstandardwasdevelopedinaccor-BondStrengthAfterSolventImmersion110–115BreakingStrengthandElongationatRoomTemperature37–45dancewithinternationallyrecognizedprinciplesonstandard-BreakingStrengthandElongationatLowTemperatures37–45izationestablishedintheDecisiononPrinciplesfortheConditioning6–8DevelopmentofInternationalStandards,GuidesandRecom-CurlingandTwisting140–146DielectricBreakdownVoltage83–90mendationsissuedbytheWorldTradeOrganizationTechnicalEffectofAcceleratedAgingonHigh-TemperatureTapes97–103BarrierstoTrade(TBT)Committee.Flagging66–76Flammability104–1092.ReferencedDocumentsHazards/Precautions3InsulationResistanceatHighHumidity91–962.1ASTMStandards:2LengthofTapeinaRoll28–36A666SpecificationforAnnealedorCold-WorkedAusteniticStainlessSteelSheet,Strip,Plate,andFlatBar1ThesetestmethodsareunderthejurisdictionofASTMCommitteeD09onElectricalandElectronicInsulatingMaterialsandarethedirectresponsibilityofSubcommitteeD09.07onElectricalInsulatingMaterials.2ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orCurrenteditionapprovedJuly1,2017.PublishedJuly2017.OriginallyapprovedcontactASTMCustomerServiceatservice@astm.org.ForAnnualBookofASTMin1948.Lastpreviouseditionapprovedin2010asD1000–10.DOI:10.1520/Standardsvolumeinformation,refertothestandard’sDocumentSummarypageonD1000-17.theASTMwebsite.Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959.UnitedStates1D1000−17D149TestMethodforDielectricBreakdownVoltageand4.2Forsamplingpurposes,alotconsistsofidentifiableDielectricStrengthofSolidElectricalInsulatingMaterialsmaterialsofthesametype,manufacturedinoneproductionrunatCommercialPowerFrequenciesandofferedfordeliveryatthesametime.D257TestMethodsforDCResistanceorConductanceof4.3AlltestmethodsinthisstandardareintendedtoproduceInsulatingMaterialsatestvalueforasingleroll.AnyreferencetoaveragingofD295TestMethodsforVarnishedCottonFabricsUsedformeasurementsreferstotheaveragingofmeasurementsonaElectricalInsulationsinglerollandnottotheaverageofallsamplerolls.D374/D374MTestMethodsforThicknessofSolidElectri-calInsulation4.4SeeTable1forasummaryofstandardrequirementsforD1711TerminologyRelatingtoElectricalInsulationthenumberoftestspecimenstoselectfromeachsampleroll,D3487SpecificationforMineralInsulatingOilUsedinthenumberoftestmeasurementstomakepertestspecimen,ElectricalApparatusandthevaluetobereported.D5032PracticeforMaintainingConstantRelativeHumidity4.5IncludeineveryreportthecompleteidentificationofthebyMeansofAqueousGlycerinSolutionstapetested.E691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodSPECIMENPREPARATION2.2IECStandard:IEC60454-3SpecificationforPressure-SensitiveAdhesive5.TestSpecimenPreparationTapesforElectricalPurposes35.1Placeanyrolloftapetotestonafreelyrevolvingmandrel.Exceptfordeterminationoflengthoftapeinaroll,3.Hazardsremoveanddiscardaminimumofthreelayersbeforeremov-3.1Thefollowingspecificsubstancesareflammableliq-ingtapeforpreparationoftestspecimens.uids.Donotusetheminthevicinityofopenflamesorelectricalcontacts:acetone(see50.1and94.1),heptane(see5.2Removesufficientlengthoftape,attherateofapproxi-50.1and94.1),andtoluene(see70.6).Theymustbestoredinmately50mm/s(2in./s),toprovidethespecimensrequiredforclosedcontainers,anditisimperativetocleanapparatusinaalltests.Cutthetapewithasharprazorbladeorscissors,well-ventilatedarea.unlessotherwisespecified.Placethetapeonasmoothcleansurface,adhesivesideup,orsuspenditfromoneendinfreeair.3.2Astolueneisatoxicsubstance,usetolueneonlywhereProtecttheadhesivesurfacefromdust.Donotallowtheadequateventilationisprovidedandinsuchmannerastoavoidadhesivesurfacetocontacttheoperator’sfingersorotheranyabsorptionthroughtheskin(see70.6).foreignobjects.Allowflexiblespecimenstorelaxforatleast3.3Warning—Itispossiblethatlethalvoltageswillbetwominutes.Fromthistapematerial,preparespecimensaspresentwhenconductingtestmethodswhichevaluateelectri-requiredintheindividualtestmethods.SeealsoTable1.calproperties.Itisessentialthatthetestapparatus,andallassociatedequipmentelectricallyconnectedtoit,beproperlydesignedandinstalledforsafeoperation.SolidlygroundallelectricallyconductivepartsthatanypersonmightcomeinTABLE1TestingandReportingcontactwithduringthetest.Providemeansforuse,attheSec-TestsperSpecimensBTestAAReportcompletionofanytest,togroundanypartswhich:wereathightionSpecimenperRollWidth14,1931avgvoltageduringthetest;havethepotentialtoacquireanThickness2631avginducedchargeduringthetest;orhavethepotentialtoretainLengthoftapeinaroll3511valueachargeevenafterdisconnectionofthevoltagesource.Breakingstrength4413avgElongation4413avgThoroughlyinstructalloperatorsintheproperwaytoconductAdhesionstrength5213avgtestssafely.Whenmakinghighvoltagetests,particularlyinUnwindforcecompressedgasorinoil,itispossiblethattheenergyreleasedFastrateofremoval6411valueSlowrateofremoval6431avgatbreakdownwillbesuffıcienttoresultinfire,explosion,orFlaggingruptureofthetestchamber.Designtestequipment,testClass1Tape7131avgchambers,andtestspecimenssoastominimizethepossibilityClass2Tape7513avgThermosettingproperties8113avgofsuchoccurrencesandtoeliminatethepossibilityofpersonalDielectricbreakdownvoltage8933avginjury.Insulationresistanceathighhumidity9551medEffectofacceleratedaging10232avgSAMPLINGFlammability10813avgBondstrengthaftersolventimmersion11413avg4.SampleandSpecimenRequirementsOilresistance12114avgPunctureresistance12715avg4.1Theproducerandconsumershallagreeuponthenum-Resistancetoacceleratedaging129,13316avgberofrollsselected.UnlessotherwisespecifiedaminimumofCurlingandtwisting14013avgthreerollsperlotshallbeselected.AWhenrefereetestingisinvolved,useanaverageof5determinationswherever1or3arespecifiedabove.BMinimumandmaximumvaluesarealsooccasionallyrequiredwhenaverage3InternationalElectrotechnicalCommission,446MainSt.,Worcester,MAvaluesarereported.01608,http://www.iec.ch.2D1000−175.3Usetestspecimensthatarethewidthofthetapeas10.ApparatusforLowTemperatureConditioningreceived,ifpossible.Ifitisnecessarytopreparenarrower10.1Coldroomorcoldchambercapableofmaintainingthespecimensasprescribedinthetestmethod,useextremecaredesiredcoldtemperaturesduringtesting.sincehandtrimminghasthepotentialtomateriallyaffectthetestresults.Tworecommendedproceduresare(1)toslittheWIDTHOFTAPEspecimenwithasharprazorbladefreeofnickswhilethespecimenishelddownwithapatternofthedesiredwidth,orMethodA—SteelRuler(2)toslitwithmountedparallelsharprazorbladesfreeofnickstothedesiredwidth.11.Apparatus11.1Asteelscalehavingdivisionsat0.5mmor1⁄64-in.CONDITIONINGintervals.6.Terminology12.TestSpecimens6.1Definitions:12.1Selecttestspecimensofapproximately450mm(18-6.1.1conditioning,n—theexposureofamaterialtothein.)lengthsoftapetakenfromeachsamplerollinaccordanceinfluenceofaprescribedatmosphereforastipulatedperiodofwith5.2andconditionedinaccordancewithSection8.timeoruntilastipulatedrelationisreachedbetweenmaterialandatmosphere.13.Procedure13.1Placethetestspecimen,afterconditioning,without7.SignificanceandUsetensionorpressure,adhesivesidedownonahardsmooth7.1Thephysicalandelectricalpropertiessuchasadhesion,surface.Measurethewidthperpendiculartotheedgewiththeelongation,breakingstrength,anddielectricbreakdownwillsteelscaleatthreeapproximatelyequally-spacedpointsalongvarywithtemperatureandmoisturecontent.Actualservicethelength.resultsareinfluencedbythesefactors.Inorderthattestmethodsyieldconsistentandreproducibleresults,controlthe14.Reporttemperatureandmoisturecontentofthesampleorspecimen.14.1Reporttheaveragewidthinmillimetresorinches,plusthemaximumandminimum,ifspecified.8.ConditioningforRoomTemperatureMeasurements15.PrecisionandBias8.1Conditionallrollsoftapeforaminimumof24htoatemperatureof2365°C(7369°F)beforeremoving15.1Thistestmethodhasbeeninuseformanyyears,butnospecimensfortest.statementofprecisionhasbeenmadeandnoactivityisplannedtodevelopsuchastatement.8.2Conditionalltestspecimensforaperiodof1hinacontrolledatmosphereat2365°C(7369°F)and50610%15.2Thistestmethodhasnobiasbecausethevalueforrelativehumiditypriortotesting.widthisdefinedintermsofthistestmethod.8.3Unlessotherwisespecified,testingshallbeconductedatMethodB—Caliper2365°C(7369°F)and50610%relativehumidity.8.4Forrefereetestingpurposes,subjectallsamplerollsto16.Apparatusacontrolledlaboratorytemperatureof2361°C(73.4616.1Apairofcaliperswithascalelengthlargerthanwidth1.8°F)foraminimumperiodof24hbeforeremovingoftherolloftape,havingdivisionsat0.5-mmor1⁄64-in.specimensfortest.intervals.8.5Unlessotherwisespecified,conditionallrefereetest17.TestSpecimenspecimensforaperiodof1hinacontrolledlaboratoryatmosphereat2361°C(73.461.8°F)and5062%relative17.1Onerolloftape,conditionedinaccordancewithhumidity.Section8.Unlessdamaged,noouterlayersneedtoberemoved.8.6Unlessotherwisespecified,refereetestingshallbeconductedat2361°C(73.461.8°F)and5062%relative18.Procedurehumidity.18.1Theouterturnsoftherollmusthavecleanandsharpedges.Discardanydamagedorcrushededges.Aftercondi-9.ConditioningforLowTemperatureMeasurementstioningtherolloftape,placeitonatableinaverticalposition.9.1ElastomericbackingsofClass2tapeshavethepotentialOpenthejawsofthecalipersandslidethemoverthecutedgestobesubjecttocoldtemperaturetests.Conditionelastomericofthetapesothatthescaleshaftisparalleltothetable.ClosebackingsofClass2tapesforcoldtemperaturetestsbyplacingthecaliperjawsslowlysoastojusttouchthesidesofthetapepreparedspecimensorrollsoftapeinacoldroomforatleastroll.Becarefulnottocrushtheedgesandkeepthecaliperjaws2hatthedesiredtemperature(exampletemperatures:10°C,perpendiculartotheedgesofthetape.Measurethewidth0°C,-10°C,-18°C).perpendiculartotheedgesinmm(in.)tothenearest0.5mm3D1000−17(1⁄64in.)atthreeapproximatelyequally-spacedpointsalongthe26.Reportcircumferenceoftheroll.26.1Reportthefollowinginformation:26.1.1Theaveragethicknesstothenearest0.0025mm19.Report(0.0001in.)plusthemaximumandminimum,ifspecified.19.1Reporttheaveragewidthinmillimetresorinches,plusthemaximumandminimum,ifspecified.27.PrecisionandBias27.1Dataobtainedfromaround-robininvestigationon20.PrecisionandBiasseveraltypesofpressure-sensitiveadhesivetapeindicatethat20.1Thistestmethodhasbeeninuseformanyyears,butnothicknessmeasurementswithinasinglelaboratorycanbestatementofprecisionhasbeenmadeandnoactivityisplannedexpectedtofallwithin65%ofthemeanvalue,andthattodevelopsuchastatement.measurementsbetweenlaboratoriescanbeexpectedtofallwithin610%oftheoverallmeanvalue.420.2Thistestmethodhasnobiasbecausethevalueforwidthisdefinedintermsofthistestmethod.27.2Astatementofbiasisnotapplicableinviewoftheunavailabilityofastandardreferencematerialforthisproperty.THICKNESSLENGTHOFTAPEINROLL21.Terminology28.Terminology21.1DefinitionsofTermsSpecifictoThisStandard:28.1DefinitionsofTermsSpecifictoThisStandard:21.1.1thickness,n—theperpendiculardistancebetweenthe28.1.1lengthoftapeinaroll,n—thenumberoflinearoppositesurfacesofpressure-sensitiveadhesivetapeasdeter-metresoryardsoftapewoundintoarollasmeasuredinminedinaccordancewiththistestmethod.accordancewiththesetestmethods.22.SignificanceandUse29.SignificanceandUse22.1Thethicknessisofvalueincontrollinguniformityand29.1Measurementofthelengthoftapeinarollisnecessaryprovidingdesigndata,aswellasforuseindeterminingtoensurereceivingcorrectquantities.physicalandelectricalproperties.MethodA—BalanceMethod23.Apparatus30.Apparatus23.1ThicknessGauge—AdeadweightthicknessgaugeasprescribedinApparatusCofTestMethodsD374/D374M,with30.1Balance—Tworequired,onecapableofweighingtothefollowingmodifications:thenearest0.1g,theothercapableofweighingto1mg.23.1.1PresserFootDiameter—6mm(1⁄4in.).30.2SteelRule—Capableofmeasuringtothenearest2mm23.1.2AnvilDiameter—6mmto50mm(1⁄4to2in.).(0.1in.).23.1.3Aweightedpresserfootsothatthetotalpressureappliedtoaspecimenisequalto5065kPa(7.660.5psi).31.TestSpecimenCalibratethegaugefortheactualloadexertedbythepresser31.1Atestspecimenisasinglethicknessofpressure-foot.sensitiveadhesivetapeapproximately1m(3ft)longremoved23.1.3.1Anycommercialinstrumentthatsatisfies23.1.3,fromafullrolloftapeasreceivedfromthemanufacturer.includingahand-heldmicrometer,ispermissiblefortheConditioneachspecimenasdescribedinSection8.thicknessmeasurement.32.Procedure24.TestSpecimens32.1Determinethenumberofrollstobetestedforlengthin24.1Inaccordancewith5.2andSection8,prepareandaccordancewiththescheduledescribedinSection4.conditionspecimensoftapeofasinglethicknessaminimum32.2Removethecorefromtheroll.Weigheachrolltothelengthof450mm(18in.).Letflexiblespecimensrelaxforatnearest0.1g(Note3).Removeaspecimenoftapeapproxi-least2minbeforetesting.mately1m(3ft)longfromtherollinaccordancewiththeproceduredescribedinSection5,exceptDONOTDISCARD25.Procedurethefirstthreelayers.Afterconditioning,measuretherelaxed25.1Placethetestspecimenupontheanvilofthegauge,lengthofthespecimentothenearest2mmor0.1in.andweighsmoothly,withadhesivesidedown,butwithouttension.Lowertothenearestmg.thepresserfootontothetapegraduallytominimizeanyimpactNOTE3—Ifitisdesiredtorunadditionaltestsonthetapeintheroll,itforce,allowingittorestuponthetapefor2s,andthenobserveispermissibletofirstweightherollwiththecoreinplaceandthenthereadingtothenearest0.0025mm(0.0001in.)ofthesubtracttheweightofthecoreafteralltestspecimensareremoved.thicknessgaugescale.Makesurenoairbubblesaretrapped.25.2Takethreemeasurementsuniformlydistributedover4SupportingdatahavebeenfiledatASTMInternationalHeadquartersandmaythesurfaceofthetestspecimen.beobtainedbyrequestingResearchReportRR:D09-1008.4D1000−1732.3Calculatethemetresperrollasfollows:36.2Thesetestmethodshavenobiasbecausethevalueforweightofrolllesscore3lengthofspecimen,mmlengthisdefinedintermsofthesetestmethods.Metresperroll5weightofspecimen31000BREAKINGSTRENGTHANDELONGATION(1)32.4Calculatetheyardsperrollasfollows:37.Terminologyweightofrolllesscore3lengthofspecimen,in.37.1DefinitionsofTermsSpecifictoThisStandard:Yardsperroll5(2)weightofspecimen33637.1.1breakingstrengthofpressure-sensitiveadhesivetape,n—theforcerequired,perunitwidth,tobreakthetapewhenMethodB—LengthSensorMethodtestedunderprescribedconditions.37.1.2elongationofpressure-sensitiveadhesivetape,33.Apparatusn—theincreaseinlengthatbreakwhenthetapeistestedunder33.1LengthSensor—Adevicetomeasurelengthbyusingaprescribedconditions.benchmarkedrotatingwheelwhichrolls,withlowtorqueand37.1.2.1Discussion—InthecaseofClass1tapes,itiscontactpressure,againstthecircumferenceoftherollasitfeasiblethattheelongationwillincludecreepinthejawswhichunwinds.Theapparatusincludesaspindleformountingtheisoftenpartiallycompensatedforby“necking”ofthespeci-tape,thelengthsensormechanism,andaread-outandrotatingmen.wind-uprollthatcanbeusedtoeithermanuallyorautomati-callyunwindtherolloftape.SeeFig.1.38.SignificanceandUse38.1BreakingStrength—Breakingstrengthoftapeisimpor-34.Proceduretantasameasurementofitsuniformity,quality,andabilityto34.1Determinethenumberofrollstobetestedforlengthinwithstandtensilestressinapplicationandservice.accordancewiththescheduledescribedinSection4.Useonly38.2Elongation—Elongationoftapeisimportantasafullrollsoftape.Donotremoveanyouterlayer.measurementofitsuniformityandquality,aswellasarough34.2Mounttherollontheshaftadjacenttothesensor.indicationofitsabilitytoconformtocontoursofunevenPositiontherollandlengthsensorsothatthesensorisinsurfaces.contactwiththecircumferenceoftherollandtheleadingend38.3InthecaseofClass2tapes,testingatlowtemperatureoftherollisdirectlyunderthesensor.Zerothesensorandisnecessarytoensurethatthetapeperformswellatcoldwintermanuallypulltheleadingedgeofthetapeandfixittothetemperatures.wind-uproll.Atthestartoftheunwinding,makesurethatthelengthsensormaintainsgoodcontactwiththerollanddoesnotNOTE4—Itispossiblethatvaluesobtainedindryicechambersandsliporbind.Afterunwindingiscompleted,takethereadingofwalk-incoldroomswillnotbeequivalent.thelengthsensor.39.Apparatus35.Report39.1TestingMachine—Atestingmachineoftheconstant-35.1Reportthefollowinginformation:rate-of-extension(CRE)typeispreferred.Equipthemachine35.1.1Thelengthoftapeineachrolltothenearest0.1mwithadeviceforrecordingthetensileloadandtheamountof(0.1yd).separationofthegripssuchthatbothofthesemeasuringsystemsareaccurateto62%ofthebreakingloadorthe36.PrecisionandBiasamountofseparationofthegrips.Theapparatusmustbe36.1Thesetestmethodshavebeeninuseformanyyears,capableofprovidingsmooth,uniformjawmovementduringbutnostatementofprecisionhasbeenmadeandnoactivityistesting,andtherateadjustableinincrementsnecessarytoplannedtodevelopsuchastatement.producestrainratesthatarespecifiedforthematerialsundertest.Equipthemachinewithaloadcellwithacapacitysuchthatthebreakingloadofthematerialundertestfallsbetween10and90%ofthemaximumcapacityoftheloadcell.39.2ExtensionIndicator—Asuitableinstrumentfordeter-miningthedistancebetweentwofixedpointslocatedwithinthegaugelengthofthetestspecimenatanytimeduringthetest.Itisdesirable,butnotessential,thatthisinstrumentautomaticallyrecordthisdistanceasafunctionoftheloadonthetestspecimen,oroftheelapsedtimeforthestartofthetest,orboth.Ifonlythelatterisobtained,alsotakeload-timedata.Theextensionindicatorwillusuallyhaveaseparationof25mm(1in.)betweenpointsandbeaminimumof25mm(1in.)fromboththetopandbottomjaws.IfasuitableextensionFIG.1MeasuringDeviceforDeterminationofLengthofTapeinindicatorisnotavailable,elongationshallbecalculatedbyjawRoll(LengthSensorMethod)separationdistanceasdescribedinSection43.5D1000−1739.3HoldingFixtures—Useholdingfixturesofanyoneof42.Procedurethefollowingtypes,providedthatthefixturedoesnotcutthe42.1AirJawsorManualJaws—Positionthecrossheadatspecimenorcauseslippage:thedesiredgaugelengthandinsertthespecimeninthegr
本文档为【ASTM D1000】,请使用软件OFFICE或WPS软件打开。作品中的文字与图均可以修改和编辑, 图片更改请在作品中右键图片并更换,文字修改请直接点击文字进行修改,也可以新增和删除文档中的内容。
该文档来自用户分享,如有侵权行为请发邮件ishare@vip.sina.com联系网站客服,我们会及时删除。
[版权声明] 本站所有资料为用户分享产生,若发现您的权利被侵害,请联系客服邮件isharekefu@iask.cn,我们尽快处理。
本作品所展示的图片、画像、字体、音乐的版权可能需版权方额外授权,请谨慎使用。
网站提供的党政主题相关内容(国旗、国徽、党徽..)目的在于配合国家政策宣传,仅限个人学习分享使用,禁止用于任何广告和商用目的。
下载需要: 免费 已有0 人下载
最新资料
资料动态
专题动态
is_388423
暂无简介~
格式:pdf
大小:496KB
软件:PDF阅读器
页数:0
分类:生产制造
上传时间:2020-04-30
浏览量:439