International Standard
ISO 8424:2023
Raw optical glass — Resistance to attack by aqueous acidic solutions — Test method and classification
Reference number
ISO 8424:2023
Edición 3
2023-07
International Standard
Vista previa
ISO 8424:2023
77488
No disponible en español
Publicado (Edición 3, 2023)

ISO 8424:2023

ISO 8424:2023
77488
Idioma
Formato
CHF 96
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Resumen

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”.

Informaciones generales

  •  : Publicado
     : 2023-07
    : Norma Internacional publicada [60.60]
  •  : 3
     : 17
  • ISO/TC 172/SC 3
    81.040.10 
  • RSS actualizaciones

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