EPA Method 548 Calibration Solution

Dimethoxy ethyl phthalate

4,4'-Dinitrobiphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1528-74-1

EPA Method 502/524 Surrogate Standard #3, 2000µg/ml in MeOH, 1ml