Formaldehyde (0.1 ppm)

84 µS/cm calibration solution (230mL)

Cetirizine dihydrochloride,1000 µg base/mL,water,1mL,

3-Methyl-2,2',4,6'-tetrachlorodiphenylmethane, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no.