EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674022 D5-Fenuron, 100 µg/ml, Acetonitrile, 1ml Price on request 96601 Phenytoin Price on request 676915 Tricresyl phosphate (mixture of isomers), 250mg Price on request