EPA Method 624 Internal / Surrogate Standard Back Catalog number: 92559 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79402 Aroclor 1016 Price on request 1613.9-100MG Indan, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 496-11-7 Price on request 2517.8-500MG Caffeine, neat, Solvent-neat, Unit 500mg, # of units-1, Cas.no. 58-08-2 Price on request