EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8368.6-10MG 2-Bromo-4,5,6-trichloroaniline,neat,neat,10mg, Price on request 11267.5-100-AN (E,Z)-Methomyl-d3 (N-methyl-d3),100 µg/mL,acetonitrile,1mL, Price on request 676633 Ametoctradin, 100 µg/ml, Acetonitrile, 1ml Price on request