EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73862 2-Methylundecane Price on request 0239.20-200-T Benzo[a]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 50-32-8 Price on request 93927 Semi-Volatile Surrogate Standard Price on request