Phthalic acid, bis-butyl ester, certified, 0.5g

Ethanolamine, 100mg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 141-43-5

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

Norflurazon, 100 µg/ml, Acetonitrile, 1ml