Ethylene thiourea, 100 µg/ml, Acetonitrile, 1ml

CLP Surr. Standard #2, 200ug/mL in Acetone, 1ml

PCB No. 156, 10µg/ml in Isooctane, 10ml

Pesticide-Mix 41, 10.0 µg/ml, Acetonitrile, 10ml