EPA Method 8325 Surrogate Standard Back Catalog number: 82483 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 683851 Acibenzolar-S-methyl, 100 µg/ml, Acetonitrile, 5 Price on request DF-238-S 2,3,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 679542 Cephapirin, 10mg Price on request