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
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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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