Total Residual Free Chlorine

Perfluoro-n-[1,2,3,4,5-13C5]pentanoic acid, 50µg/ml in MeOH, 1,2ml

4-Aminophenol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 123-30-8

Nivalenol CRM,25 µg/mL,acetonitrile,2mL,