ISO-6849 › Photography - Processing wastes - Determination of boron
ISO-6849
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1ST EDITION
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CURRENT
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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.
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37.040.30 (Photographic chemicals)
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Document Number
ISO 6849:1996
Revision Level
1ST EDITION
Status
Current
Publication Date
Nov. 1, 1996
Committee Number
ISO TC 42/WG 6