ISO 9689:2025
ISO 9689:2025 Raw optical glass - Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 °C - Testing and classification
standard byInternational Organization for Standardization , 09/01/2025
standard byInternational Organization for Standardization , 09/01/2025
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.
u000bThis document is applicable to samples of raw optical glasses.