Dicofol 100 µg/mL in Cyclohexane, 1ml

gamma-HCH, 10.0 µg/ml, Ethyl acetate, 10ml

Ethanol standard in water,0.1g/L,water, 3mL

2,2',3,4',5,6,6'-Heptachlorobiphenyl ,100 µg/mL,isooctane,1mL,