Specification for cast iron drain pipes, fittings and their joints for socketed and socketless systems Ingestion-build-264231 preparation and conditioning of test

preparation and conditioning of test specimens

BS EN 54-23:2010 Fire detection and fire alarm systems

including the planning

7 Normal service

Specification for cast iron drain pipes, fittings and their joints for socketed and socketless systems Ingestion-build-264231 preparation and conditioning of test1 Scope This British Standard specifies the requirements for cast irondrain systems for use in buried applications or suspended within a basement, in areas not subject to fire regulations, where any pressure likely to occur is a maximum of 3. 5 bar. NOTE In this standard, all pressures are relative pressures, expressed in bars (100 kPa = 1 bar). The nominal sizes of the drain systems are DN 100, DN 150 and DN 225 inclusive. The standard specifies the