WP PCBs in Transformer Oil CALA Back Catalog number: 38239 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94991 n-Hydrocarbon Standard Price on request 66137 2,2',3,4,4',5-Hexachlorobiphenyl (137) Price on request 673256 Diflubenzuron, 10.0 µg/ml, Acetonitrile, 10ml Price on request