EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30852 Dibromoacetonitrile Price on request 94223 Volatile Standard Price on request 0716.13-K-IO 2-Isopropylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2027-17-0 Price on request