Reference number
ISO 10349-3:1992
International Standard
ISO 10349-3:1992
Photography — Photographic-grade chemicals — Test methods — Part 3: Determination of matter insoluble in ammonium hydroxide solution
Edition 1
1992-12
Read sample
ISO 10349-3:1992
21260
Published (Edition 1, 1992)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 10349-3:1992

ISO 10349-3:1992
21260
Language
Format
CHF 42
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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.

General information

  •  : Published
     : 1992-12
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 42
    37.040.30 
  • RSS updates

Life cycle

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