GM 7001M-2001 Plastic Molding Compounds

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1、MaterialSpecificationGM7001MPlasticsPlasticMoldingCompounds1ScopeSuffixCharacteristicSymbolThisstandardprovidesasystemforspecifyingsignif-NFlexuralStrengthicantpropertiesofcommonlyusedplastics,includingunpigmentedandpigmented,unfilledandfilledprod-PStiffnessucts.Itisintendedtoapplytoresins

2、(notparts),pri-marilyasusedintheautomotiveandrelatedindus-QCompressiveStrengthtries.ItisalsointendedtobeusedeitherasthesoleRImpactStrengthdescriptorofamaterialorwithinthebodyofaspecifi-cationcoveringthecommonstandardcharacteristicsSDeflectionTemperaturerequiredwhereasadditionalspecializedr

3、equirementsTBrittlenessTemperaturearedetailed.UFlammability1.1MaterialDescription.Itisbasedontheprin-VFoggingciplethatplasticsshouldbedescribed,insofarasispossible,intermsofspecificperformancecharacter-WHeatResistanceisticsdesiredintheresin,andthataninfinitenumberXHumidityAgingofsuchdescri

4、ptionscanbeformulatedbytheuseofoneormorestandardstatements(basedonstandardYWeatherResistancetests),eachdesignatingaqualitylevelofapropertyZOtherCharacteristicsorcharacteristic.Thus,usersofplasticresincan,byselectingdifferentcombinationsofperformancechar-Note:SuffixSymbolsAthroughHarenormal

5、lyap-acteristic,specifydifferentcombinationsofpropertiesplicabletotheresinasreceived.SuffixSymbolsJdesiredinvariousresins.throughUarenormallyapplicabletotestspecimensCompoundProperties.SeeTable1.moldedfromtheresinasreceived.SuffixSymbolsVthroughZcoveringenvironmentalperformancere-Table1:Pr

6、opertiesquirementsarealsonormallyapplicabletotestspec-SuffixCharacteristicimensmoldedfromtheresinasreceived.SymbolResinDescription.TheresindescriptionshallbeasAResinTypeindicatedbythenumeral(s)followingthesuffixA-sym-bol(seeTable2).One(1)ormoresuffixsymbolsmayBReinforcementand/orFillerbeus

7、edtodescribetherequiredresins.DSpecificGravityExample:A3,A42=Aheatstabilized,copolymerEViscosityresin.FMeltPointTable2:ResinDescriptionGMoistureContentDesignationCharacteristicHOxidativeStability1AlloyJHardness2BlendKTensileStrength3CopolymerLElongation4Genera