EPA Method 8121 Surrogate Standard Back Catalog number: 81204 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3096.12-50-IO 4,4'-Dibromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 92-86-4 Price on request 8-B-23-CDF 8-Bromo-2,3-dichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 673646 Oxadixyl, 100 µg/ml, Ethyl acetate, 5ml Price on request