Beflubutamid, 10.0 µg/ml, Acetonitrile, 10ml

Heptachlor-endo-epoxide (trans-, isomer A), 10µg/ml in CY, 10ml

1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin

Ethanol standard in water,0.3g/L,water, 1.5mL