BS EN 14457 is the UK and European Standard providing general requirements for components of drain and sewer systems outside buildings, covering products used in conjunction with the design principles in BS EN 752. The standard supports consistent product testing and marking across the European market, addressing pipes, fittings, chambers and ancillary components. In the UK it is regularly cited in product specifications for adopted drainage and in supplier technical literature. Practical implications for contractors and specifiers across London developments include verifying that procured components carry BS EN 14457 marking alongside the relevant product-specific standard such as BS EN 13476 for PVC-U. The standard is one of a family of supporting documents used in Sewers for Adoption design code work. Practitioners often confirm requirements with the sewerage undertaker during s.104 design review.
BS EN 14457 (CCTV survey)
European Standard providing general requirements for components of drain and sewer systems.
