ISO 8424:2023
2023-07
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
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Estado: PublicadoFecha de publicación: 2023-07Etapa: Norma Internacional publicada [60.60]
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Edición: 3Número de páginas: 17
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Comité Técnico :ISO/TC 172/SC 3ICS :81.040.10
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Ciclo de vida
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Anteriormente
RetiradaISO 8424:1996
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Ahora
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