Reference number
ISO 8424:2023
International Standard
ISO 8424:2023
Raw optical glass — Resistance to attack by aqueous acidic solutions — Test method and classification
Edition 3
2023-07
Read sample
ISO 8424:2023
77488
Published (Edition 3, 2023)

ISO 8424:2023

ISO 8424:2023
77488
Language
Format
CHF 96
Convert Swiss francs (CHF) to your currency

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

  •  : Published
     : 2023-07
    : International Standard published [60.60]
  •  : 3
     : 17
  • ISO/TC 172/SC 3
    81.040.10 
  • RSS updates

Got a question?

Check out our Help and Support