EPA Method 8081A Pesticide Standard B Back Catalog number: 92790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 33671 n-Butyraldehyde Price on request B-250S-0.35X Dow FR-250, 35 µg/mL in Isooctane, 1ml Price on request 683172 Bentazone-8-hydroxy, 10.0 µg/ml, Acetonitrile, 5 Price on request