Propetamphos, 100 µg/ml, Ethyl acetate, 5ml

2,3,4,4'-Tetrabromodiphenyl ether, 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

Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml