EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 682658 Ethyl formate, 1000mg Price on request 95316 Aroclors 1016/1260 Price on request 79260 Picloram, 1000µg/ml in Acetone, 1ml Price on request