EPA Method 552.1 - Surrogate Standard Back Catalog number: 31056 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended EPA-8290HRCC1,2,4 Individual Calibration Solutions , 500ul, nonane Price on request 79114 2,4’-DDE, 1000µg/ml in Hexane, 1ml Price on request 673330 Iprovalicarb, 10.0 µg/ml, Acetonitrile, 10ml Price on request