EPA 8240B Calibration Standard Back Catalog number: 98430 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675606 Flubenzimine, 10 µg/ml, Ethyl acetate, 10ml Price on request 72595 Phenthoate Price on request M0220 4,4'-Diaminodiphenylmethane, >98%, 25g Price on request