EPA Method 551.1 Surrogate Standard Back Catalog number: 30102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682203 Fenoxaprop-P-ethyl, 10.0 µg/ml, Acetonitrile, 10 Price on request S-11455A1-1ML Chlorotoluron, 100µg/ml in Acetonitrile, 1ml Price on request 71173 2,2’,4,4’,5,5’-Hexabromobiphenyl Price on request