BS 437:2008 Specification for cast iron drain pipes, fittings and their joints for socketed and socketless systems
Specifies requirements for cast iron drain systems for use in buried applications or suspended in basements, with a maximum pressure of 3.5 bar and not subject to fire regulations. For nominal sizes DN 100, DN 150 and DN 225.
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
389 Chiswick High Road
Tel: 020 8996 9000