EPA Method 515.3 - Derivatized acids Back Catalog number: 30151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0705.13-500-IO 1,4,6-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2131-42-2 Price on request 14258.5-K-ME Ethylisopropylnitrosamine, 1000μg/ml in MeOH, 1ml Price on request 79493 Perfluoroheptanoic acid Price on request