EPA Method 8021B Internal Standard

Chlorobenzene-d5, 1000µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 3114-55-4

Di-tert-butylsulfide, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 107-47-1

Teflubenzuron, 10 µg/ml, Cyclohexane, 10ml