Photography — Photographic-grade chemicals — Test methods — Part 10: Determination of sulfide content
NORMA vydaná dňa 30.12.1992
Designation standards: ISO 10349-10:1992
Publication date standards: 30.12.1992
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Kategória: Technické normy ISO
Description / Abstract: The method is based on weighing a test portion, dissolution in water, transfer to one of the Nessler colour-comparison cylinders, pipetting the volume of sulfide standard into the second Nessler colour-comparison cylinder, addition of alkaline lead solution, making up with water, mixing thoroughly, and comparing the colour and clarity of the two solutions.