PCB congener calibration check

Heptachlor-exo-epoxide, 100 µg/ml, Methanol, 1ml

1,1,1,3,6,8,8,8-Octachlorooctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 61856-19-7

Tetramethrin