EPA Method 505/507 - Pesticide Standard Back Catalog number: 91936 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9721.27-100-IO Heptacosanoic acid, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7138-40-1 Price on request 673270 Ethiofencarb, 10.0 µg/ml, Acetonitrile, 10ml Price on request 91868 Aroclor 1242 Price on request