This document specifies a method for determining the hydrolytic resistance of glass grains at 98 °C. The resistance is measured and expressed by the volume of acid required for titration of the alkali extracted from the unit mass of glass, and can also be expressed by the amount
DIN ISO 719:2021 history
2021DIN ISO 719:2021 Glass - Hydrolytic resistance of glass grains at 98 °C - Method of test and classification (ISO 719:2020)
1989DIN ISO 719:1989 Glass; hydrolytic resistance of glass grains at 98 °C; method of test and classification; identical with ISO 719:1985