EPA Method 549.1 Analytes Back Catalog number: 32079 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 28013 EPA Method 8260B Purgeable Internal Standard Price on request 673525 Chlorpyrifos, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 95824 Chlorinated Pesticide Standard Price on request