GSO ISO 9689:2021

ISO 9689:1990
Gulf Standard   Current Edition · Approved on 01 July 2021

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

GSO ISO 9689:2021 Files

GSO ISO 9689:2021 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.

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