1,1,1,2-Tetrachloroethane, 100 µg/ml, Methanol,

Perfluoro-n-octadecanoic acid, 1.2ml x 50ug/ml, methanol

2,3,4,5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL,

Chloral hydrate Level 4