In Australia, distances between capital cities have necessitated the building of glass container manufacturing facilities in each state. Because of small local markets, each facility can economically operate only one or two tanks. Thus, to supply the three basic glass colours - white, amber and green - furnace colour chages are relatively frequent.
Origin
University Of New South Wales
Journal Title
Glass Prod Tech Int 1996 89-91
Sector
General
Class
G 1450