A viscosity model for predicting the complete viscosity curve of glass was developed using a global statistical approach & more than 2200 composition- viscosity data for silicate glasses collected from over 50 years of scientific literature, including soda-lime-silica container & float glasses, TV panel glasses, borosilicate fibre wool & E type glasses, low expansion borosilicate glasses, glasses for nuclear waste vitrification, lead crystal glasses, binary alkali silicates, & various other compositions. It is shown that, within a measurement series from a specific laboratory, the reported viscosity values are commonly overestimated at higher temperatures due to evaporation losses during the measurement & glass preparation; this data presented by Lakatos et al ( Glass Technology 1972)
