ISO 6849:1996

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Bezeichnung: ISO 6849:1996

Ausgabedatum: 07.11.1996

Seiten: 9

Land: Internationale technische Norm

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Description / Abstract: Gives two methods for the determination of boron in photographic processing wastes. The first method is the estimation of borates by titration of the boric acid-mannitol complex. Suitable for boron concentrations of 0,1 mg/l and higher. The second alternative method is a spectrophotometric technique using methylene blue which can be used in the concentration range of 0,1 mg/l to 1,0 mg/l.