Terbuthylazine, 100 µg/ml, Methanol, 1ml

EPA Method 8021B Internal Standard

beta-HCH, 100 µg/ml, Methanol, 1ml

n-Nonadecane, ?13C: -34.60, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-92-5