ISO 10349-3:1992
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ISO 10349-3:1992
21260

Abstract  Preview

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.


General information 

  •  :  Published
     : 1992-12
  •  : 1
     : 2
  •  : ISO/TC 42 Photography
  •  :
    37.040.30 Photographic chemicals

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