BS EN 1329-1:2026

This standard BS EN 1329-1:2026 Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure. Unplasticized poly(vinyl chloride) (PVC-U) is classified in these ICS categories:

• 23.040.01 Pipeline components and pipelines in general
• 23.040.20 Plastics pipes
• 91.140.80 Drainage systems

This document specifies the requirements for solid wall pipes with smooth internal and external surfaces, extruded from the same formulation throughout the wall, fittings and the piping system of unplasticized poly(vinyl chloride) (PVC-U) intended for soil and waste discharge applications (low and high temperature) - above ground inside the building, or outside buildings fixed onto the wall; which is reflected in the marking by “B”; - for both inside buildings and buried in ground within the building structure, which is reflected in the marking by “BD”. This intended use is only applicable for components with nominal outside diameters equal to or greater than 75 mm. NOTE 1 Multilayer pipes with different formulations throughout the wall and foamed core pipes are covered by EN 1453-1[1]. PVC-U pipes, fittings and the system complying with this document are also suitable for the following purposes: - ventilating part of the pipework in association with discharge applications; - rainwater pipework within the building structure. This document covers a range of nominal sizes, a range of pipes and fittings series and gives recommendations concerning colours. Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this document, provided they conform to the requirements for joint dimensions given in Clause 7 and to the requirements of Table 26. NOTE 2 EN 476[2] specifies the general requirements for components used in discharge pipes, drains and sewers for gravity systems. Pipes and fittings conforming to EN 1329-1 fully meet the EN 476 requirements.

BS EN 1329-1:2026 - PVC-U Piping Systems for Soil and Waste Discharge

Introducing the BS EN 1329-1:2026, the definitive standard for plastics piping systems designed for soil and waste discharge within building structures. This comprehensive document provides detailed specifications for pipes, fittings, and the entire system made from unplasticized poly(vinyl chloride) (PVC-U), ensuring optimal performance in both low and high-temperature environments.

Key Features and Benefits

• Comprehensive Coverage: Spanning 54 pages, this standard offers an in-depth exploration of PVC-U piping systems, covering every aspect from design to installation.
• Temperature Versatility: Specifically tailored for both low and high-temperature applications, ensuring reliability and durability in diverse environmental conditions.
• Material Excellence: Utilizes unplasticized poly(vinyl chloride) (PVC-U), known for its robustness, chemical resistance, and long-lasting performance.
• Up-to-Date Specifications: Released on May 27, 2026, this standard reflects the latest advancements and best practices in piping technology.

Why Choose BS EN 1329-1:2026?

The BS EN 1329-1:2026 standard is an essential resource for engineers, architects, and construction professionals who demand the highest quality in piping systems. By adhering to this standard, you ensure that your projects meet stringent safety and performance criteria, reducing the risk of system failures and enhancing the overall integrity of your building structures.

Technical Specifications

Standard Number	BS EN 1329-1:2026
Pages	54
Release Date	2026-05-27
ISBN	978 0 539 32769 4
Status	Standard

Applications

The BS EN 1329-1:2026 standard is applicable to a wide range of building projects, including residential, commercial, and industrial structures. Its guidelines ensure that soil and waste discharge systems are designed to handle varying temperatures and pressures, making it a versatile choice for any construction project.

Quality Assurance

By implementing the BS EN 1329-1:2026 standard, you are investing in a system that prioritizes quality and safety. The use of PVC-U material not only provides excellent durability but also contributes to sustainable building practices due to its recyclability and low environmental impact.

Conclusion

Incorporating the BS EN 1329-1:2026 standard into your building projects ensures that you are utilizing the most advanced and reliable piping systems available. With its comprehensive guidelines and focus on high-quality materials, this standard is an invaluable asset for any professional in the construction industry.

For those committed to excellence in building design and construction, the BS EN 1329-1:2026 is the standard of choice for ensuring efficient, safe, and sustainable piping systems.