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ISO 9689:2025

Raw optical glass - Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 °C - Testing and classification
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ISO 9689:2025

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

PUBLISH DATE 2025
ISO 9689:2025

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.

This document is applicable to samples of raw optical glasses.

SDO ISO: International Organization for Standardization
Document Number ISO 9689
Publication Date Jan. 1, 2025
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 172/SC 3
Publish Date Document Id Type View
Jan. 1, 2025 ISO 9689:2025 Revision
Dec. 1, 1990 ISO 9689:1990 Revision