A term used in rating chlorine containing products as to their total oxidizing power. Also chlorine, both free and combined that is active to some degree against bacteria and algae in pool/spa water.
A term used in rating chlorine-containing products as to their total oxidizing power. See Free available chlorine.
A term used in rating chlorine products as to the strength of the chlorine available per equal units of measurement. It is usually rated as percent. For example, 90% available chlorine means that 1.0 pound of that chlorine compound has 0.9 pounds of pure chlorine strength.
The amount of chlorine, both free and combined in the pool water that is available to sanitize or disinfect the water. Sometimes called residual chlorine. ACKFLOW The backing up of water through a pipe in the direction opposite to normal flow.
Amount of hypochlorous acid (the form that does the work) a chlorinating product contains. Also referred to as Free Available Chlorine in the water.
Free chlorine expressed as a percentage of active ingredient in a concentrated liquid or powder.
A measure of the amount of chlorine available in chlorinated lime, hypochlorite compounds, and other materials that are used as a source of chlorine when compared with that of elemental (liquid or gaseous) chlorine
The amount of free chlorine that is available to sanitise or disinfect the water. It is also called Residual Chlorine and Free Available Chlorine.
A rating of a chemical's total chlorine content (oxidizing power) based on a comparison to elemental (gaseous) chlorine having 100% available chlorine.
Free or combined chlorine used to disinfect pool water.