EPA Method 502/524 Volatile Standard

2,4,4'-Trichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Chloroparaffin C10-C13, 51,5% Cl, 100µg/ml in CY, 10ml

1,3-Dimethyl-5-ethylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 934-74-7