Abstract
This document specifies two methods for testing the resistance of raw optical glasses to attack by aqueous acidic solutions and defines a classification of optical glasses according to the acid resistance determined by these methods.
The surface method tests the resistance of the polished plate-shaped optical glass to attack by aqueous acidic solutions at 25 °C for a specified time and indicates the class determined by this method as “SR-S”.
The powder method tests the resistance of crushed granular optical glass to attack by an acidic aqueous solution at above 98 °C for 1 h, and indicates the class determined by this method as “SR-P”.
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General information
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Status: PublishedPublication date: 2023-07Stage: International Standard published [60.60]
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Edition: 3Number of pages: 17
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Technical Committee :ISO/TC 172/SC 3ICS :81.040.10
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Life cycle
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WithdrawnISO 8424:1996
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