ISO 8424:2023
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ISO 8424:2023
77488

Abstract

 Preview

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
  •  : 3
     : 17
  •  : ISO/TC 172/SC 3 Optical materials and components
  •  :
    81.040.10 Raw materials and raw glass

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