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ISO 720:1985

Glass -- Hydrolytic resistance of glass grains at 121 degrees C -- Method of test and classification

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Withdrawn from 11.09.2020
Directives or regulations
None

Standard history

Status
Date
Type
Name
11.09.2020
Main
10.10.1985
Main
Main
ISO 720:1981
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.

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ISO 719:1985

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