Total Residual Free Chlorine (Cl)

1-Nitropyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 5522-43-0

4-Dodecylphenol, mixture of isomers, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 210555-94-5

Naphthalene Mix, 20µg/mL in dichlorometh., 10 x1ml