EPA Method 507 Surrogate Standard

Water - Trace elements, 500ml

18ß(H)-Olean-12(13)-ene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 471-68-1

Pyrifenox, , Solvent-, Unit , # of units-, Cas.no. 88283-41-4