Résumé
PrévisualiserThis 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”.
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État actuel: PubliéeDate de publication: 2023-07
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Edition: 3
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- ICS :
- 81.040.10 Matières premières et verre brut
Acheter cette norme
fr
| Format | Langue | |
|---|---|---|
| std 1 92 | PDF + ePub | |
| std 2 92 | Papier |
- CHF92
Cycle de vie
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Précédemment
AnnuléeISO 8424:1996
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Actuellement
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