EPA Method 552.1 - Surrogate Standard Back Catalog number: 31056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 93538 EPA Method 502/524 Volatile Standard Price on request 0654.40-500-IO ßß-Carotane, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 17161-33-0 Price on request 1158.38-10MG n-Octatriacontane, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 7194-85-6 Price on request