Density of produced glass has lower value than that of annealed glass as it contains some level of stress. Therefore, density of sample glass requested to the test is defined as the value of a dead annealed sample which is calibrated at the basic temperature (20℃), considering a softening point on the basis of the composition of glass

5cm(L) x 5cm(W) x 0.5cm(H), Approximately 30g

Glass Density