Free available chlorine definition
Free available chlorine means that portion of the total residual chlorine remaining in water at the end of a specified contact period that will react chemically and biologically as hypochlorous acid or hypochlorite ion.
Free available chlorine means that portion of the total chlorine remaining in chlorinated water that is not combined with ammonia or nitrogen compounds and will react chemically with undesirable or pathogenic organisms.
Free available chlorine means the value obtained using any of the “chlorine-free available” methods in Table IB in 40 CFR 136.3(a) where the method has the capability of measuring free available chlorine (40 CFR 423.11(l)).
More Definitions of Free available chlorine
Free available chlorine means “active sanitizer”, and is the chlorine that is available to kill bacteria or algae. It is the most active form of chlorine that is free to kill bacteria and algae.
Free available chlorine means the value obtained using the amperometric titration method for free available chlorine described in "Standard Methods for the Examination of Water and Wastewater," page 112 (13th edition).
Free available chlorine means the amount of chlorine available as dissolved gas, hypochlorous acid, or hypochlorite ion, that is not combined with an amine or other organic compound.
Free available chlorine or "free chlorine residual" means the portion of the total available chlorine that is not combined with other molecules and is present as hypochlorous acid (HOCl) and hypochlorite ion (OCl).
Free available chlorine means the value obtained using any of the “chlorine-free available” methods in Table IB in 40 CFR 136.3(a) where the method has the capability of measuring free available chlorine, or other methods approved by the permitting authority.