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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
22 nën 1990
95.99 Withdrawal of Standard   2 sht 2025

General information

95.99     2 sht 2025

ISO

ISO/TC 172/SC 3

International Standard

81.040.10  

frëngjisht   anglisht  

Buying

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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WITHDRAWN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
2 sht 2025

REVISED BY

PUBLISHED
ISO 9689:2025