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ISO 8424:2023

Raw optical glass — Resistance to attack by aqueous acidic solutions — Test method and classification

Standard Details

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”.

General Information

Status : Published
Standard Type: Main
Document No: ISO 8424:2023
Document Year: 2023
Pages: 17
Edition: 3

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ISO 8424:2023

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