Specifies requirements for volumetric chamber and turbine meters with permanent flow rates not exceeding 6.5 kL/h and which incorporate two single check valves integral with the meter one at each end of the meter for low hazard protection of potable water.

This Standard specifies requirements for volumetric, multi-jet, and single-jet meters incorporating two integral single check valves for low hazard protection of potable water supply. Water meters with integral single check valves are intended for installation in water services to measure, within the accuracy limits of the class, the volume of cold potable water at working temperatures in the ranges of 0.3°C to 30°C and pressures not exceeding 1400 kPa, respectively. This Standard is applicable to meters that are self-contained and capable of continuously determining, within the accuracy limits of the class, the volume of cold potable water that has flowed through them, and that are continuously indicating the volume on a cumulative basis. Means for demonstrating compliance with this Standard are given in Appendix A. NOTE: Purchasing guidelines are given in AS 3565.1.

First published as part of AS 3565.3-1998.Revised and redesignated in part as AS 3565.5-2004. First published as part of AS 3565.3-1998. Revised and redesignated in part as AS 3565.5-2004.