Historical

ISO 6853:1987

Photography - Processing waste - Determination of ammoniacal nitrogen content - Microdiffusion method

Specifies a method for determining ammonia and other volatile amines that can be liberated by strong alkali from photographic processing wastes. The method is applicable in the range 10 to 200 mg/l of NH3 or 8 to 160 mg/l of nitrogen.

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International Organization for Standardization [iso]

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