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ISO 9689:1990

Raw optical glass — Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 degrees C — Testing and classification ISO 9689:1990

Publication date:   Nov 22, 1990

95.99   Withdrawal of Standard   Sep 2, 2025

General information

95.99   Withdrawal of Standard   Sep 2, 2025

ISO

ISO/TC 172/SC 3 Optical materials and components

International Standard

81.040.10   Raw materials and raw glass

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Scope

Specifies a method for testing the resistance of raw optical glasses and a classification of optical glasses according to the aqueous alkaline phosphate-containing detergent resistance (phosphate resistance) determined by this method.

Life cycle

NOW

WITHDRAWN
ISO 9689:1990
95.99 Withdrawal of Standard
Sep 2, 2025

REVISED BY

PUBLISHED
ISO 9689:2025




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