This standard was last reviewed and confirmed in 2018.
Therefore this version remains current.
Abstract
PreviewThe 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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Status: PublishedPublication date: 1992-12
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Edition: 1Number of pages: 2
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- ICS :
- 37.040.30 Photographic chemicals
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| Format | Language | |
|---|---|---|
| std 1 40 | ||
| std 2 40 | Paper |
- CHF40
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