EPA Method 8141/1657 Surrogate Standard Back Catalog number: 92357 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9699.6 4-Bromo-2-nitroaniline, , Solvent-, Unit , # of units-, Cas.no. 875-51-4 Price on request 92815 Volatile Mix A1, 200µg/ml in MeOH, 1ml Price on request 678658 Ethofumesate-2-keto, 10mg Price on request