EPA Method 548.1 Analyte Back Catalog number: 30177 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680484 2,4,6-Trichlorophenol acetate, 20mg Price on request 677932 2,4,5-T-methyl ester, 100 µg/ml, Acetonitrile, 1 Price on request 676670 N,N-Dimethylnicotinamide-2-sulfonamide, 10mg Price on request