PCB Congeners & Hexachlorobenzene Mix #3

Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1

1H,1H,7H-Perfluoroheptan-1-ol , 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 335-99-9

Ethylbenzene, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 100-41-4