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NationalFenestrationRatingCouncilIncorporatedNFRC300-2001StandardTestMethodforDeterminingtheSolarOpticalPropertiesofGlazingMaterialsandSystemsCopyrightNFRCPublished:November2002SecondEditionPreparedby:NationalFenestrationRatingCouncilIncorporated8484GeorgiaAvenue,Suite320SilverSpring,MD20910Telephone:301-589-1776Facsimile:301-589-3884Email:NFRCUSA1@aol.comWebsite::NationalFenestrationRatingCouncil8484GeorgiaAvenue,Suite320SilverSpring,MD20910Telephone:301-589-1776Facsimile:301-589-3884:2.4.1Monolithichomogeneousspecularorslightlydiffusingmaterialsincludingglassplates,plasticsheetsandflexibleplasticfilm.2.4.2GlassorplasticsubstratesasdescribedinSection2.4.1withcoatingsappliedbychemicalorvacuumdepositionprocessesorwithappliedfilms.2.4.3Laminatedglazingsconsistingoftwoormorerigidlayerscombinedwithoneormoreadhesiveinterlayers.2.5Thefollowingmaterialsandsystemsshallnotbemeasuredorcalculatedusingthistestmethodeitherbecausetheycannotbemeasuredusingaspectroradiometerorelsebecausenocalculationprocedureshaveyetbeendevelopedtodeterminetherelevantparametersfromsuchspectroradiometricmeasurements2.5.1Stronglydiffusingmaterials.2.5.2Non-homogeneouspatternedortexturedmaterials.2.5.3Complexglazingorshadingsystemsincludingbutnotlimitedtoblinds,drapes,holographicandprismaticpanels.2.5.4Curvedglazingincludingbutnotlimitedtodomedskylights.2.5.5Combinationsofglazingelementsthatincludeoneormorediffusinge