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ISO 10349-3:1992
Photography — Photographic-grade chemicals — Test methods — Part 3: Determination of matter insoluble in ammonium hydroxide solution
Automatically translated name:
Photography -- Photographic-grade chemicals -- Test methods -- Part 3: Determination of matter insoluble in ammonium hydroxide solution
STANDARD published on 30.12.1992
The information about the standard:
Designation standards: ISO 10349-3:1992
Publication date standards: 30.12.1992
SKU: NS-421912
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 10349-3:1992 :
Description / Abstract: 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.
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