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sklademVydáno: 1994
ISO 3621:1994
ISO 3621:1994-Photography — Processing chemicals — Specifications for sodium tetraborate decahydrate
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| Označení normy: | ISO 3621:1994 |
| Počet stran: | 3 |
| Vydání: | 2 |
| Vydáno: | 1994 |
| Jazyk: | Anglicky |
DESCRIPTION
ISO 3621:1994
Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade sodium tetraborate decahydrat and specifies the tests to be used to determine the purity.