Reference number
ISO 8424:2023
© ISO 2024
International Standard
ISO 8424:2023
Raw optical glass — Resistance to attack by aqueous acidic solutions — Test method and classification
Edition 3
2023-07
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Published (Edition 3, 2023)

ISO 8424:2023

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Format
CHF 96
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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”.

General information

  • Status
     : Published
    Publication date
     : 2023-07
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 17
  • Technical Committee :
    ISO/TC 172/SC 3
    ICS :
    81.040.10 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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