ISO 720:1985
Glass; Hydrolytic resistance of glass grains at 121 degrees C; Method of test and classification

Standard No.

ISO 720:1985

Release Date

1985

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 720:2020

Latest

ISO 720:2020

Scope

The principle, reagents, apparatus and the procedure are specified. The resistance is expressed by the volume of acid required for titration of the alkali extracted from the unit mass of glass. The permissible range of the values obtained and the limit values in the hydrolytic resistance grain test are listed.

ISO 720:1985 history

• 2020 ISO 720:2020 Glass — Hydrolytic resistance of glass grains at 121 °C — Method of test and classification
• 1985 ISO 720:1985 Glass; Hydrolytic resistance of glass grains at 121 degrees C; Method of test and classification
• 1981 ISO 720:1981 Glass — Hydrolytic resistance of glass grains at 121 degrees C — Method of test and classification