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: -Fe2O3 (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 the range of 18 to 30.