Modeling in the glass industry is a vital component of process control. Hence, it is necessary to have reliable data on compositions, which are close to those used in the process, as well as to know the extent to which changes in composition will affect those data. In this article a method for measuring the density and surface tension of glass melts at temperatures up to 1450 deg C under different atmospheric conditions has been developed. The method has been used to generate several data sets that impart information not only about glass technology but also basic glass science. However, the true value of this method lies in the strategies applied to reduce errors by both experimental controls and methods of calculating and interpreting data. This paper discusses these stages.
