NEN-ISO 7760
Photography - Processing waste - Determination of hydroquinone
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 January 2002 |
| Status: | active |
| Page Count: | 18 |
| ICS Code (Special wastes): | 13.030.30 |
| ICS Code (Photographic chemicals): | 37.040.30 |
scope:
Specifies a spectrophotometric method for the determination ofhydroquinone in photographic processing waste. This method can be applied to samples containing hydroquinone in the concentration range of 200 µg/l to 4000 µg/l;aminophenols and phenylenediamines shoulds also be determined by this method. However, sulfonated hydroquinones or products from the further oxidation of benzoquinone will not be determined.
Document History
NEN-ISO 7760
January 1, 2002
Photography - Processing waste - Determination of hydroquinone
Specifies a spectrophotometric method for the determination ofhydroquinone in photographic processing waste. This method can be applied to samples containing hydroquinone in the concentration range...