Formaldehyd-DNPH, 100mg

Mass-Labelled PCB Solution, 1.2ml x 1000ng/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

2,3',6-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL,