EPA Method 507 Surrogate Standard Back Catalog number: 19049 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681018 2-n-Octylphenol-mono-ethoxylate, 100 µg/ml, Aceto Price on request 679992 (R)-(-)-Littorine hydrochloride, 10mg Price on request 682260 Pentabromotoluene, 50mg Price on request