WS Disinfection By-Products - Cal Check 2

Tetrachloro-m-xylene, 1000μg/ml in MeOH, 1ml

Fenamiphos sulfoxide, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 31972-43-7

Canadian Drinking Water Carbamates Mix