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ISO 10349-9:1992

Photography — Photographic-grade chemicals — Test methods — Part 9: Reaction to ammoniacal silver nitrate

Standard Details

The method is based on weighing a test portion, dissolving it in water, transfer of the solution to each of two Nessler colour-comparison cylinders, preparing a test solution by adding freshly prepared ammoniacal silver nitrate solution to one of the Nessler cylinders and mixing well, preparing a blank solution by adding ammonium hydroxide solution and water to the other Nessler cylinder and mixing well, allowing the solutions to stand for 2 min, and comparing the colour and turbidity of the two solutions.

General Information

Status : Published
Standard Type: Main
Document No: ISO 10349-9:1992
Document Year: 1992
Pages: 2
Edition: 1

Life Cycle

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ISO 10349-9:1992
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