This standard has been revised byISO 6851:2001
Abstract
Describes a method for determining the total organic nitrogen and any ammoniacal nitrogen present in photographic processing waste. This amino nitrogen is converted to ammonia which is subsequently determined by absorption into boric acid in a microdiffusion cell along with any ammonia originally present.
General information
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Status : WithdrawnPublication date : 1987-11
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Edition : 1Number of pages : 4
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- ICS :
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Special wastes
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Photographic chemicals
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