EPA Method 8260B Surrogate Standard Back Catalog number: 23112 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677449 Tri-o-cresyl phosphate, 250mg Price on request 678388 Dicloran, 100 µg/ml, Acetonitrile, 1ml Price on request 72357 Sumithrin Price on request