To obtain a glass compsn. having an enhanced UV absorptivity at a low cost by specifying the UV transmittance of a glass compsn. and incorporating specified amts. of Fe2O3 and WO3.

A glass material comprising, by weight, 68.5-74% SiO2, 7-10% CaO, 0-5% MgO, 0-1.5% Al2O3, 0-1% K2O, 13-16% Na2O and, optionally, ≤2.2% CeO2, ≤1% TiO2 and ≤2% La2O3, is prepd., 0.4-1.5 wt.% Fe2O3, 0.1-1.2 wt.% WO3 and, optionally, one or more colorants selected from CoO, Se, Cr2O3, NiO and V2O5 are added to the glass material and they are melted and vitrified to obtain the objective silica-soda lime type glass compsn. having <15% UV transmittance (TUV.ISO) in 2.85-4.85 mm glass thickness, <50% total energy transmittance (TE) in 3.85 mm thickness, a redox (FeO/Fe2O3) of 0.12-0.29 and ≤70% or ≥35% total light transmittance (TLA) under A light.