BS ISO 6849:1997
Photography - Processing wastes - Determination of boron

Standard No.

BS ISO 6849:1997

Release Date

1997

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS ISO 6849:1996(1998)

Latest

BS ISO 6849:1996(1998)

Scope

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.

BS ISO 6849:1997 history

• 0000 BS ISO 6849:1996(1998)
• 1997 BS ISO 6849:1997 Photography - Processing wastes - Determination of boron
• 1997 BS ISO 6849:1996 Photography. Processing wastes. Determination of boron