See 38227 (Soil version)

EPA Method 507 - Internal Standard

2-Ethyl-1-methylbenzene (2-ethyltoluene, o-ethyltoluene), 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 611-14-3

Procymidone, 100 µg/ml, Ethyl acetate, 5ml