ISO 7760:2001

Photography — Processing waste — Determination of hydroquinone
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.
SDO:
ISO
Language:
English
ICS Codes:
13.030.30; 37.040.30
Status:
Published
Publish date:
2001-12-19
Standard Number:
ISO 7760:2001