Photography — Processing wastes — Determination of boron
NORM herausgegeben am 7.11.1996
Bezeichnung normen: ISO 6849:1996
Ausgabedatum normen: 7.11.1996
Zahl der Seiten: 9
Gewicht ca.: 27 g (0.06 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
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.