EPA Method 502.2/524.2 - Liquids, VOC, 200ug/ml in MeOH, 1ml

Hexachlorobenzene (13C6, 99%), 100µg/ml in Nonane, 1,2ml

Methyl isothiocyanate

3-Bromobiphenyl, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2113-57-7