1,2,3,4-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml

PCB 118, 10 µg/ml, Isooctane, 10ml

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

3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyltetrazolium Bromide, >98%, 1g