PAH Standard (20 ppm)

beta-HCH (BHC), 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 319-85-7

Dimethipin, 100 µg/ml, Methanol, 1ml

Pentachlorobenzene,100 µg/mL,cyclohexane,1mL,