EPA Method 515.1 - Performance Check Solution

Diclobutrazol, 10 µg/ml, Ethyl acetate, 10ml

2-Phenylbenzoxazole, neat, Solvent-neat, Unit 10MG, # of units-23, Cas.no. 833-50-1

O,O-Diethyldithiophosphate-13C4, ammonium salt