| 摘要 |
Soda lime glass includes glass forming constituents for soda lime glass; and coloring agents including iron, cobalt, selenium and chromium express in the form indicated and in an amount as percent by weight of the soda lime glass as follows: from 1.05 to 1.80% of Fe2O3, from 0.0040 to 0.0180% of Co, from 0.0003 to 0.0040% of Se, and from 0.0010 to 0.0100% of Cr2O3. The soda lime glass has a dark grey color, a total energy transmission measured for a glass thickness of 4mm (TE4) mm (TE4) ranging between 15 to 40%, a selectivity (SE4) which is high and is at least 1.2, and an excitation purity which does not exceed 10%. This glass is particularly suitable for automobile rear windows or rear side windows. |
