ISO 10349-9:1992
ISO 10349-9:1992



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 

  •  :  Published
     : 1992-12
  •  : 1
     : 2
  •  : ISO/TC 42 Photography
  •  :
    37.040.30 Photographic chemicals

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