2,2',3,4',5,6,6'-Heptachlorobiphenyl (188)

2,3-Dihydrobenzofuran

EPA Method 502/524 Volatile Mix E

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