EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0011.18-10MG 1,4-Chrysenequinone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 100900-16-1 Price on request 680254 Phosmet-oxon, 10.0 µg/ml, Acetonitrile, 10ml Price on request 0277.22-200-T Indeno[1,2,3-cd]pyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 193-39-5 Price on request