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.
Status: PublishedPublication date: 1992-12
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 42 Photography
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