1-Pentacosanol, , Solvent-, Unit , # of units-, Cas.no. 26040-98-2

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

Monolinuron, 100 µg/ml, Acetonitrile, 5ml

4,4'-Diaminodiphenyl ether, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 101-80-4