EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678952 Fenchlorazol-ethyl, 10 µg/ml, Acetonitrile, 10ml Price on request 79486 Methyl 9,12,15-octadecatrienoate (C18:3n-3) Price on request 678494 Pyridaben, 100 µg/ml, Acetonitrile, 5ml Price on request