| Level | Item |
| Ref No | US/PH/2/6/485 |
| Alt Ref No | Z/12 |
| Title | University of Surrey Departments: Biochemistry |
| Date | [1970s?] |
| Extent | 1 black and white photograph |
| Name of Creator | Audio Visual Aids Unit University of Surrey |
| Description | Photograph of the preparation of one of the reagents used in the biphenyl test for carcinogens developed by the University of Surrey's Department of Biochemistry |
| Copyright | Copyright of the University of Surrey |
| Format | Photograph |
| Thumbnail | 
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