EPA Method 531.1 - Analytes

Total Residual Free Chlorine (Cl)

Neosaxitoxin, 65µM, Solvent-10-3M HCl, Unit 0.5mL, # of units-1, Cas.no. 64296-20-4

Methiocarb-sulfone, 100 µg/ml, Acetonitrile, 5ml