ISO 9689:2025

International Standard   Current Edition · Approved on 02 September 2025

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

ISO 9689:2025 Files

English 11 Pages
Current Edition
BHD 30.42

ISO 9689:2025 Scope

This document specifies a method for testing the resistance of raw optical glasses to attack by aqueous alkaline phosphate-containing detergent solutions (phosphate solutions) at 50 °C and a classification of optical glasses according to the aqueous alkaline phosphate-containing detergent resistance (phosphate resistance) determined by this method.

This document is applicable to samples of raw optical glasses.

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