EPA Method 8081A Pesticide Standard B Back Catalog number: 92788 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79365 Diethyl sulfate Price on request 22003 EPA Method 8240A Internal Standard Price on request 1492.18-10MG 1-Hydroxychrysene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 63019-38-5 Price on request