EPA Method 502/524 Surrogate Standard #2 Back Catalog number: 19267 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended UFA-031S Methyl cis-7,10,13,16-Docosatetraenoate, 10mg/ml in Heptane, 1ml Price on request 2975.4-100-AN Acephate Price on request 672876 Oxadiazon, 100mg Price on request