ISO 10349-3:1992
Photography — Photographic-grade chemicals — Test methods — Part 3: Determination of matter insoluble in ammonium hydroxide solution
OVERVIEW
The method is based on weighing a test portion, dissolution in water, addition of ammonium oxalate solution, diammonium hydrogen phosphate solution and ammonium hydroxide solution, allowing to stand for at least 8 h, filtering out the precipitate through filter paper, transfer of the filter paper with precipitate to a prepared crucible, burning it over a gas burner, incineration of the residue in a furnace, cooling in a desiccator, and reweighing.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1992 |
| No. of Pages | 2 |
| ICS Classification | 37.040.30 Photographic chemicals |
| Committee | ISO/TC 42 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |