ISO 7760:2001
International Standard
Current Edition
·
Approved on
20 December 2001
Photography — Processing waste — Determination of hydroquinone
ISO 7760:2001 Files
English
8 Pages
Current Edition
30.3 OMR
ISO 7760:2001 Scope
This International Standard specifies a spectrophotometric method for the determination of hydroquinone in
photographic processing waste.
This method can be applied to samples containing hydroquinone in the concentration range of 200 μg/l to
4 000 μg/l; aminophenols and phenylenediamines should also be determined by this method. However, sulfonated
hydroquinones or products from the further oxidation of benzoquinone will not be determined.
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