EPA Method 8260B - Purgeable Internal Std

Dichloromethane, in Certan bottle, neat, Solvent-neat, Unit 1ml, # of units-1, Cas.no. 75-09-2

Demeton-S-methyl-sulfone, 10.0 µg/ml, Acetonitril

alpha-Cypermethrin, 10 µg/ml, Cyclohexane, 10ml