PCB No. 123, 10µg/ml in Isooctane, 10ml

1-Cyclohexene-1,2-dicarboxylic anhydride, 250mg

1,1,1,3,10,11-Hexachloroundecane,100 µg/mL,acetone,1mL

alpha alpha alpha (20R)-Cholestane, 100µg/mLin Isooctane, 1ml