EPA Method 23 Calibration Kit, 5 ampoules, nonane

Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5

Aroclor 1260 in Transformer Oil

Proguanil hydrochloride, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 637-32-1