Uranium (U) Back Catalog number: 57192 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11759.12-100-IO 2,2',3,3',4,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 98262 Benzene Price on request 80403 EPA Method 8040 - Surrogate Standard Price on request