EPA Method 505/507 - Pesticide Standard Back Catalog number: 91936 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678147 Simetryn, 100 µg/ml, Acetonitrile, 5ml Price on request 52335 Mixed Calibration Standard 1 Price on request 2525.13-K-ME Ibuprofen, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 15687-27-1 Price on request