EPA Method 8315 Calibration Mix #1 Back Catalog number: 83509 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3443.2-100-CY Methamidophos Price on request 3368.8-100 Demeton S, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 126-75-0 Price on request 680519 Flumorph, 25mg Price on request