Specifies basic safety and public health related requirements for water heaters and hot-water storage tanks that are intended for connection to a potable water supply, such as water heaters designed for connection to cold water supply mains, including storage water heaters, heat-exchange water heaters, hot-water storage tanks with an external energy source, instantaneous water heaters and boiling-water dispensers.

This Standard specifies basic safety and public health related requirements for water heaters and hot-water storage tanks that are intended for connection to a potable water supply, such as water heaters designed for connection to cold water supply mains, including-(a) storage water heaters;(b) heat-exchange water heaters;(c) hot-water storage tanks with an external energy source; (d) instantaneous water heaters; and (e) boiling-water dispensers.The Standard applies to water heaters using any type of heating, irrespective of the source of the heat energy imparted to the water, including electric-resistance heating, gaseous, liquid or solid fuels, heat pumps, waste-heat recovery systems, solar energy or any other means of heating potable water.The Standard does not include requirements affecting the durability of water heaters and does not apply to steam generators, sterilizers, washing machines, wash boilers, urns, kettles, or hot-water supply systems intended solely for space heating, swimming pools, spa pools or industrial processes.

Under Revision see DR 00404 First published as AS 3888(Int)-1991.Revised and redesignated AS 3498(Int)-1993.Revised and designated AS 3498-1995. First published as AS 3888(Int)-1991. Revised and redesignated AS 3498(Int)-1993. Revised and designated AS 3498-1995.