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ISO 3620:1994 (R2021)
Photography — Processing chemicals — Specifications for aluminium potassium sulfate
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Summary
Establishes criteria for the purity of photographic-grade aluminium potassium sulfate dodecahydrate, AlK(SO4)2·12H2O, and specifies the tests to be used to determine the purity.
Notes
90.93 : Norme internationale confirmée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 12/15/1994 |
| Confirmation Date | 11/08/2021 |
| Edition | 2 |
| Page Count | 4 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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15/12/1994
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