EPA Method 8081A Pesticide Standard B Back Catalog number: 92790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675293 Biperiden hydrochloride, 10mg Price on request 96554 (±)-Norketamine HCl Price on request 82506 EPA Method 8250/8250A Mix #3 - Pesticides Price on request