ISO 10349-5:1992

Photography — Photographic-grade chemicals — Test methods — Part 5: Determination of heavy metals and iron content

STANDARD published on 30.12.1992

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The information about the standard:

Designation standards: ISO 10349-5:1992
Publication date standards: 30.12.1992
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 10349-5:1992 :

Description / Abstract: 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.