Calibration Standard Mix 4

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

2,2',4,5,5'-Pentachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 37680-73-2

gamma-BHC, 1000µg/ml in Hexane, 1ml