EPA Method 552.1 - Surrogate Standard Back Catalog number: 31056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1088.20-100-TX5 Benzo[a]pyrene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 63466-71-7 Price on request 9288.17-25MG Mirtazapine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 61337-67-5 Price on request 3443.2-100-AN Methamidophos, 100μg/mL in Acetonitrile, 1ml Price on request