A term used or an index used to compare the oxidizing power of chlorine-containing products to gas chlorine. It permits easy comparison of chlorine compounds. Gas chlorine provides 100 percent available chlorine, trichlor provides 90 percent available chlorine, Cal Hypo provides 75 percent available chlorine, Dichlor provides 56 or 62 percent available chlorine, Lithium Hypo provides 35 percent available chlorine, and sodium hypochlorite (liquid chlorine) is 10-12 percent by weight which means a gallon contains about 1 pound of pure chlorine.

(chemical related) A term used or an index used to compare the oxidizing power of chorine-containing products to gas chlorine. It permits easy comparison of chlorine compounds.

An index that compares the oxidizing power of chlorine products to gas chlorine.

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. To go back to the top of this page click here ack-flow: The backing up of water through a pipe in the direction opposite to normal flow.

A term used to compare the amount of oxidising power that chorine-containing products have when compared to gas chlorine(Cl2). It permits easy comparison of relative values of chlorine compounds.