ISO 423:1994
Photography — Processing chemicals — Specifications for hydroquinone
| Fecha edición: |
1994-04-21
En Vigor
|
|---|---|
| Idiomas disponibles: | Inglés, Francés |
| Resumen: | Establishes criteria for the purity and describes the test methods for identity tests, residue after ignition, heavy metals content, iron content, appearance of solution. Annex A describes preparation of the standard ammonium cerium(IV) hexanitrate solution. |
| ICS: | 37.040.30 - Productos químicos fotográficos |
| CTN: | ISO/TC 42 - 48420 |
|
Anulaciones Normas |
Anula a ISO 423:1976 |










