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ISO 10349-9:1992

Current Revision

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

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 10349
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 42/WG 6
Publish Date Document Id Type View
Not Available ISO 10349-9:1992 Revision