5000 µS/cm calibration solution (230mL)

(2-Nitrophenyl)phosphoric Triamide, 1g

2,4-Dimethylthiophenol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 13616-82-5

2,3',4',6-Tetrabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 189084-62-6