EPA Method 8081A Pesticide Standard B Back Catalog number: 92790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C17894300 Tris(2-chloroethyl)phosphate, certified, 0.25g Price on request 59292 Spiking Solution Price on request 1899.17-100MG Norcodeine hydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 14648-14-7 Price on request