EPA Method 502/524 Fortification Solution

EPA Method 508 Surrogate Standard

n-Propylbenzene, 1000µg/ml in MeOH, 1ml

1,3-Dimethyl-2-ethylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 2870-04-4