NEUTRAL, LOW TRANSMITTANCE GLASS

摘要

A neutral, generally green-gray low transmittance (no more than 25 luminous transmittance) soda-lime-silica glass has reduced solar energy transmittance when provided with the following colorant constituents in percent by weight: FezOs (total iron) 1.3 - 2; NiO 0.01 - 0.05; CoO 0.02 - 0.04; Se 0.0002 - 0.003. The glass has a ferrous value in t he range of 18 to 30.