IP 391-95 Calibration Level 3

Phthalic acid, mono-n-butyl ester, certified, 0.1g

2-Bromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7025-06-1

Fenitrothion, 1000µg/ml in MeOH, 1ml