EPA Method 508 Surrogate Standard Back Catalog number: 19042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0731.12-K-IO 2,7-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 582-16-1 Price on request 0007.10-100-T 1-Nitronaphthalene, 100µg/ml in Toluene, 1ml Price on request LA20635100CY Benzo(a)pyrene D12, 10µg/mL in Cyclohexane, 1ml Price on request