EPA Method 552 Internal Standard Back Catalog number: 30055 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C17414700 Tetraniliprole, 25mg Price on request 677890 Diclobutrazol, 100 µg/ml, Ethyl acetate, 1ml Price on request 678382 4,4'-DDT, 100 µg/ml, Acetonitrile, 5ml Price on request