PCB No. 123, 10µg/ml in 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

Terephthalic acid, bis(2-ethylhexyl) ester, 250mg

2-Carboxy-4-chlorophenoxyacetic acid, 10mg