Heptachlor, 100 µg/ml, Ethyl acetate, 1ml

Promethazine-D3 HCl, 0.1mg/ml in Dimethyl Sulfoxide, 1ml

1,2,3,4,6-Pentachloro[13C12]dibenzofuran, 1.2ml x 1ug/ml, nonane

Freon Standard