ISO 10349-5:1992 PDF
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Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron content
The method is based on preparation of test samples and heavy metals standard solutions, preconditioning them, addition of sodium sulfide solution (for determination of heavy metals) or 1,10-phenanthroline reagent (for determination of iron), dilution with water, mixing well, transfer to two Nessler colour-comparison cylinders, and comparing the colour of both solutions.
| Edition | 1992 |
|---|---|
| Standard Part No | 5 |
| Published Date | 1992 |
| Published By | International Standardization Organisation |
| Page Count | 3 |
