Specifies requirements for copper and copper alloy body pipe fittings and threaded-end connectors for use in water supply systems where the normal working temperature does not exceed 95 degrees Celsius, with maximum peaks of 110 degrees Celsius for short periods of time, and where the continuous working pressure ranges up to a maximum of 1.4 MPa for all fittings other than capillary fittings manufactured from copper tube.

AS 3688-1994

Water supply — Copper and copper alloy body compression and capillary fittings and threaded-end connectors