Hexachlorobenzene, 1000µg/ml in Toluene, 1ml

N,N-Dimethylformamide dimethyl acetal, neat, Solvent-neat, Unit 1mL, # of units-5, Cas.no. 4637-24-5

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

Chromium (Cr), 1µg/ml in 2%-HNO3/Water, 4 x 25ml