2,3,4,6-Tetrachlorophenol, 10.0 µg/ml, Cyclohexan

Chloroacetic acid

Hexachlorobenzene, 1000µg/ml in Toluene, 1ml

Methanol QC Reference Mixture III n-Butyl sulfide, 0.5 ppm (weight S by weight) in 99.9 % methanol; units: 1x10mL, 5x10mL