EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3956.15-K-IO Tetra-n-pentyltin, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3765-65-9 Price on request 2316.9-K-IO Diuron, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 330-54-1 Price on request 676723 Aclonifen, 250mg Price on request