Formaldehyde (1 ppm)

cis-Chlordane (alpha), 10 ng/µl, 10ml

2,3,4,6,7,8-Hexachlorodibenzofuran , 1.2ml x 50ug/ml, nonane

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