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download between 0-24 hoursReleased: 1996
ISO 6849:1996
ISO 6849:1996-Photography — Processing wastes — Determination of boron
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Standard´s number: | ISO 6849:1996 |
Pages: | 9 |
Edition: | 1 |
Released: | 1996 |
Language: | English |
DESCRIPTION
ISO 6849:1996
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.