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.
Supersedes BS 437:1978. Came into effect 30 April 2008.
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