OS GSO ISO 7760:2015
ISO 7760:2001
Omani Standard
Current Edition
·
Approved on
03 September 2015
Photography -- Processing waste -- Determination of hydroquinone
OS GSO ISO 7760:2015 Files
English
8 Pages
Current Edition
Reference Language
OMR
31.08
OS GSO ISO 7760:2015 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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