GFAA Initial Calibration Verification Back Catalog number: 53315 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673654 Parathion-methyl, 100 µg/ml, Ethyl acetate, 5ml Price on request 673196 Amidosulfuron, 10.0 µg/ml, Acetonitrile, 10ml Price on request 55038 WP & DMRQA Phenolics (Total ) 4AAP Price on request