EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D455140 3,5-Diiodo Thyroacetic Acid, 25mg Price on request 15900-0824-100AN5 Chloridazon-desphenyl, 100µg/ml in Acetonitrile, 5ml Price on request 675219 Phorate, 100mg Price on request