Photography — Processing wastes — Determination of boron
NORMA vydána dne 7.11.1996
Designation standards: ISO 6849:1996
Publication date standards: 7.11.1996
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: International technical standard
Kategorie: Technické normy 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.