Glass Packaging Institute the glass finish number. For example, an 8-425 finish is approximately 8 mm neck outside diameter with a 425 finish corresponding to a threaded neck typically found on small vials. Glass Packaging Institute The Glass Packaging Institute (GPI) is the North American trade association for the glass container industry, headquartered in Arlington, Virginia. Through GPI, glass container manufacturers advocate job preservation and industry standards, and promote sound energy, environmental, and recycling policies. The GPI membership consists of 5 glass container manufacturing member companies, and 33 supplier member companies, who provide raw materials, recycled glass, equipment, decorating, and other services to
Carboy Carboy A carboy (or carbuoy), demijohn, or jimmyjohn is a rigid container with a typical capacity of . Carboys are primarily used for transporting liquids, often water or chemicals. They are also used for in-home fermentation of beverages, often beer or wine. The word "carboy" is from the Persian "qarābah" (قرابه), from Arabic "qarrāba", "big jug". "Demijohn" originally referred to any glass vessel with a large body and small neck, enclosed in wickerwork. The word presumably comes from the French "dame-jeanne", literally "Lady Jane", as a popular appellation; this word is first attested in France in the 17th century. An