Written descriptions of glass can often lead to misunderstandings due to vague or varied interpretations of the terms used. Different regions of the country and the world use different terminology, measurement systems and structure when defining a glass makeup; terms can even change over time.  This document aims to standardized descriptive language for glass, providing clear and concise definitions of glass compositions that can be universally understood and ensuring glass descriptions are precise and accessible to facilitate communication and improve efficiency in the industry.