GSO ISO 9689:2021
Raw optical glass — Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 degrees C — Testing and classification

Standard No.

GSO ISO 9689:2021

Release Date

2021

Published By

GSO

Latest

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.

GSO ISO 9689:2021 history

• 2021 GSO ISO 9689:2021 Raw optical glass — Resistance to attack by aqueous alkaline phosphate-containing detergent solutions at 50 degrees C — Testing and classification