COD Calibration Standard Back Catalog number: 51255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94422 EPA Method 8270 Additionals Price on request 673204 Atrazine-desethyl, 10.0 µg/ml, Acetonitrile, 10m Price on request 673473 Acrinathrin, 100 µg/ml, Ethyl acetate, 5ml Price on request