EPA Method 515.3 - Derivatized acids Back Catalog number: 30151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0978.10-10MG Naphthalene-d8, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1146-65-2 Price on request 70421 Urethane, 1000µg/ml in MeOH, 1ml Price on request 50462 Copper AA Standard (Cu) Price on request