1,4,6,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

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

Chlorfenson, 100mg

ζ-1,2,5,6,9,10-Hexabromocyclododecane, 1.2ml x 50ug/ml, toluene