EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended A111600-1MG Absinthin, 1mg Price on request 70503 Glyphosate Price on request 673598 Flonicamid, 100 µg/ml, Acetonitrile, 5ml Price on request