EPA Method 502.2/524.2 Volatile Standard

2,4-D n-butyl ester

1,2,4,5-Tetrachlorobenzene-d2, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 1198-57-8

D4-Methanol, 100 µg/ml, Acetonitrile, 1ml