EPA Method 551.1 Internal Standard Back Catalog number: 30103 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72831 Isoxaflutole Price on request 675381 Cyhalofop diacid, 10mg Price on request 2654.12-100-IO 4-Chloro-4'-fluorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 398-22-1 Price on request