ISO 720:1985

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

95.99 Withdrawal of Standard Sep 11, 2020

General information

Current stage: 95.99 Effective date: Sep 11, 2020

Originator: ISO

Owner: ISO/TC 76

Type: International Standard

ICS: 81.040.01

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.

Life cycle

PREVIOUSLY

Revises
ISO 720:1981

NOW

WITHDRAWN
ISO 720:1985
95.99 Withdrawal of Standard
Sep 11, 2020

REVISED BY

ABANDON
ISO/WD 720

PUBLISHED
ISO 720:2020

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