Endosulfan I

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

Perfluorooctadecanoic acid, 50mg

2,3-Dimethyl-2-butanethiol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 1639-01-6