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ISO 10349-5:1992
Photography -- Photographic-grade chemicals -- Test methods -- Part 5: Determination of heavy metals and iron content
SKU: iso_021262_109998
Publié par ISO
Année de publication 1992
1 Edition
3 pages
détails du produit
The method is based on preparation of test samples and heavy metals standard solutions, preconditioning them, addition of sodium sulfide solution (for determination of heavy metals) or 1,10-phenanthroline reagent (for determination of iron), dilution with water, mixing well, transfer to two Nessler colour-comparison cylinders, and comparing the colour of both solutions.