GLASS COMPOSITIONS
An infrared and ultraviolet soda-lime-silica glass of a neutral tint containing 0.25% to 1.75% by weight total iron expressed as Fe2O3 and a ferrous content by weight calculated from the equation: % by weight FeO .gtoreq. 0.007 + (Optical density - 0.036)/2.3 the glass further including one or more...
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