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
OMR
31.27
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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