1,4-Difluorobenzene

Valve Timing Calibration Mix (without Internal Standard) 4 Analytes, each Wt.% as listed in isooctane; units: 1x10mL, 5x10mL Name Wt.% Name Wt.% Benzene 5.0 o-Xylene 10.0 Toluene 5.0 Isooctane

Parathion-methyl, 100µg/ml in Acetonitrile, 5ml

2,2’,3,3’,4,5-Hexachlorobiphenyl (129)