EPA Method 552.1 - Surrogate Standard Back Catalog number: 31056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82491 EPA Method 1666Labeled Standard Price on request 676944 2,4,6-Trichloroaniline, 250mg Price on request 678058 D10-Simazine, 100 µg/ml, Acetone, 1ml Price on request