Norm

ISO 10349-5:1992 en

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

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 30-12-1992
Taal Engels
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.

Details

ICS-code 37.040.30
Nederlandse titel Photography - Photographic-grade chemicals - Test methods - Part 5: Determination of heavy metals and iron content
Engelse titel Photography - Photographic-grade chemicals - Test methods - Part 5: Determination of heavy metals and iron content

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