502.2 Volatile Organic std., 0,2mg/ml in MeOH, 1ml

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

Nivalenol, 100µg/ml in Acetonitrile, 1ml

2,4'-DDE, 100 µg/ml, Methanol, 1ml