1.1 This terminology defines terms generally used in the glass industry.

1.2 In some cases in which a usage is specific to a ceertain industry, that is spelled out within the definition. For completeness and hisotrical purposes, terms that are outdated are listed as being archaic. The reader is cautioned that some companies or industries may define or use terms differently than the way these terms are defined within this terminology.

1.3 Other sources of glass glossaries are Glass Association of North America's Glazing Manual, Engineering Standards Manual for Tempered Glass, Laminated Glass Design Guide,and ASTM Committee C-14 standards.