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NBN 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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Summary
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.
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 12/22/2025 |
| Page Count | 0 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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