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1、1180METHOD24-DETERMINATIONOFVOLATILEMATTERCONTENT,WATERCONTENT,DENSITY,VOLUMESOLIDS,ANDWEIGHTSOLIDSOFSURFACECOATINGS1.0ScopeandApplication.1.1Analytes.AnalyteCASNo.VolatileorganiccompoundsNoCASNumberassignedWater7732-18-51.2Applicability.Thismethodisa
2、pplicableforthedeterminationofvolatilemattercontent,watercontent,density,volumesolids,andweightsolidsofpaint,varnish,lacquer,orotherrelatedsurfacecoatings.1.3PrecisionandBias.Intra-andinter-laboratoryanalyticalprecisionstatementsarepresentedinSection1
3、3.1.Nobiashasbeenidentified.2.0SummaryofMethod.2.1Standardmethodsareusedtodeterminethevolatilemattercontent,watercontent,density,volumesolids,andweightsolidsofpaint,varnish,lacquer,orotherrelatedsurfacecoatings.3.0Definitions.3.1Waterbornecoatingmeans
4、anycoatingwhichcontainsmorethan5percentwaterbyweightinitsvolatilefraction.11813.2Multicomponentcoatingsarecoatingsthatarepackagedintwoormoreparts,whicharecombinedbeforeapplication.Uponcombinationacoreactantfromonepartofthecoatingchemicallyreacts,atamb
5、ientconditions,withacoreactantfromanotherpartofthecoating.3.3Ultraviolet(UV)radiation-curedcoatingsarecoatingswhichcontainunreactedmonomersthatarepolymerizedbyexposuretoultravioletlight.4.0Interferences.[Reserved]5.0Safety.5.1Disclaimer.Thismethodmayi
6、nvolvehazardousmaterials,operations,andequipment.Thistestmethodmaynotaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthistestmethodtoestablishappropriatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulato
7、rylimitationspriortoperformingthistestmethod.5.2HazardousComponents.Severalofthecompoundsthatmaybecontainedinthecoatingsanalyzedbythismethodmaybeirritatingorcorrosivetotissues(e.g.,heptane)ormaybetoxic(e.g.,benzene,methylalcohol).Nearlyallarefirehazar
8、ds.Appropriateprecautionscanbefoundinreferencedocuments,suchasReference3ofSection16.0.11826.0EquipmentandSupplies.TheequipmentandsuppliesspecifiedintheASTMmethodslistedinSections6.1through6.6(incorporatedbyreference-see§60.17foracceptableversi
