EPA Method 525 Spike C Back Catalog number: 92314 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2574.26-5MG Benzo[a]pentacene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 239-98-5 Price on request 3011.10-K-IO 4,5-Dimethyloctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 15869-96-2 Price on request 59021 Lithium 6 (6Li) Price on request