84 µS/cm calibration solution (230mL)

1,3-Diaminopyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 92821-64-2

DL-2-Phenylpropionic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 492-37-5

1,3,7,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane