2,2',3,3',6,6'-Hexachlorobiphenyl (136)

3-sec-Butyl-2-methoxypyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

n-Butylcyclopentane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 2040-95-1

EPA Method 8240A Calibration Check Compounds