EPA Method 502.2 Surrogate Standard Back Catalog number: 91704 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681082 1-Bromo-2,4,6-trichlorobenzene, 100mg Price on request 672960 Griseofulvin, 250mg Price on request 673466 Triforine, 10 µg/ml, Acetonitrile, 10ml Price on request