BS 7357:1990

This British Standard specifies requirements for 7.5 L maximum single flush, exposed and concealed WC flushing cisterns with a side inlet or bottom inlet supplied with a float operated valve, a valveless siphon for high level, low level, and close coupled applications together with the necessary flush pipes.

Information to be supplied by the purchaser at the time of enquiry and/or order is listed in Appendix A.

Requirements for float operated valve assemblies and methods of fixing cisterns are not specified in this standard.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

Requirements for max single flush exposed and consealed WC flushing cisterns with side inlet or bottom inlet supplied with a float operated valve and a valveless siphon for low level, high level and close coupled applications, together with the necessary flush pipes