ISO 9689:1990Withdrawn

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

Verre d'optique brut — Résistance à l'attaque par des solutions aqueuses de détergent contenant du phosphate alcalin à 50 degrés C — Essai et classification

This edition has been replaced by ISO 9689:2025.

Abstract / 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

Replaced by

ISO 9689:2025PublishedRaw optical glass — Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 °C — Testing and classificationInternational Standard · Published 2 Sep 2025 · ISO/TC 172/SC 3