EPA 8240B Calibration Mix 6 Back Catalog number: 82429 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1647.7-1ML Pentafluorobenzoyl chloride, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 2251-50-5 Price on request 674695 Napropamide, 100 µg/ml, Cyclohexane, 5ml Price on request 30341R Aldicarb sulfoxide Price on request