EPA Method 551.1 Surrogate Standard Back Catalog number: 31102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 683717 Acequinocyl-hydroxy, 100 µg/ml, Ethyl acetate, 1 Price on request 677170 Trimethyltin chloride, 250mg Price on request 673621 Hexaconazole, 10.0 µg/ml, Ethyl acetate, 10ml Price on request