Neutral low transmittance glass

摘要

A neutral, generally green-gray low transmittance (no more than 50 percent luminous transmittance) soda-lime-silica glass has reduced solar energy transmittance and reduced ultra violet radiation transmittance when provided with the following colorant constituents in percent by weight: - Fe2O3 (total iron) 1.3-2 - NiO 0.01-0.05 - CoO 0.02-0.04 - Se 0.0002-0.003 - TiO2 0.09-3 - The glass has a ferrous value in the range of 18 to 30.