2-Chloro-5-nitrotoluene, 100mg

2,3,6-Tribromophenol, 1.2ml x 100ug/ml, toluene

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

PCB No. 204, 100µg/ml in Isooctane, 1ml