EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 672849 Fenobucarb, 250mg Price on request 2926.5-100-AN Desisopropylatrazine-d5 (ethyl-d5), 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1189961-78-1 Price on request 11203.8-10MG 1D,1D,2H,2H-1-Hydroxyperfluorooctane,neat,neat,10mg, Price on request