EPA Method 8240A Calibration Check Compounds Back Catalog number: 82412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90396 Internal Standard Price on request 673243 Cyazofamid, 100 µg/ml, Acetonitrile, 5ml Price on request 2740.27-10MG 5ß(H)-Cholestan-3-one, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 601-53-6 Price on request