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

2,3',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 52663-72-6

EPA Method 551.1 Standard

COD Calibration Standard