o-Dianisidine, 100 µg/ml, Acetonitrile, 1ml

4-tert-Octylphenol, certified, 0.25g

1,2,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

Dichlofenthion, 10 µg/ml, Ethyl acetate, 10ml