Calibration Std. #1

beta-HCH (BHC), 100µg/mL, Solvent-dichloromethane, Unit 1mL, # of units-1, Cas.no. 319-85-7

Ethyl-t-butyl ether

Carbofuran, 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1563-66-2