BS EN ISO 11298-4:2021: Revolutionizing Underground Water Supply Networks

In the ever-evolving world of infrastructure and utilities, the need for efficient, durable, and sustainable solutions is paramount. The BS EN ISO 11298-4:2021 standard is a groundbreaking document that addresses these needs by providing comprehensive guidelines for the renovation of underground water supply networks using cured-in-place pipe (CIPP) lining techniques.

Overview of the Standard

The BS EN ISO 11298-4:2021 standard is a crucial document for professionals involved in the maintenance and renovation of water supply systems. Released on April 28, 2021, this standard spans 50 pages of detailed information, offering a robust framework for implementing CIPP lining in underground water supply networks. The standard is identified by the ISBN 978 0 539 03765 4 and is currently in active status, ensuring that it reflects the latest industry practices and technological advancements.

What is Cured-in-Place Pipe (CIPP) Lining?

Cured-in-place pipe (CIPP) lining is an innovative trenchless rehabilitation method used to repair existing pipelines. This technique involves inserting a resin-saturated felt tube into the damaged pipe, which is then cured to form a new, seamless, and jointless pipe within the old one. This method is highly effective for water supply networks as it minimizes disruption, reduces costs, and extends the lifespan of the existing infrastructure.

Key Benefits of BS EN ISO 11298-4:2021

• Cost-Effective Solutions: By utilizing CIPP lining, municipalities and utility companies can significantly reduce the costs associated with traditional pipe replacement methods. This standard provides a clear guideline for implementing these cost-saving measures effectively.
• Minimized Disruption: Traditional pipe replacement often involves extensive excavation, leading to traffic disruptions and environmental impact. CIPP lining, as outlined in this standard, offers a trenchless solution that minimizes surface disruption and maintains the integrity of the surrounding environment.
• Enhanced Durability: The CIPP method results in a new pipe that is resistant to corrosion and root intrusion, ensuring a longer service life for the water supply network. The standard provides detailed specifications to ensure the highest quality and durability of the renovated pipes.
• Environmental Sustainability: By reducing the need for excavation and new materials, CIPP lining is a more sustainable option for pipeline renovation. The standard emphasizes environmentally friendly practices, aligning with global sustainability goals.

Who Should Use This Standard?

The BS EN ISO 11298-4:2021 standard is essential for a wide range of professionals, including:

• Engineers and Designers: Those involved in the planning and design of water supply networks will find this standard invaluable for incorporating CIPP lining into their projects.
• Contractors and Installers: Professionals responsible for the installation and renovation of pipelines can rely on this standard for best practices and quality assurance.
• Municipalities and Utility Companies: Organizations tasked with maintaining and upgrading water supply infrastructure will benefit from the cost-effective and sustainable solutions outlined in this standard.

Detailed Content of the Standard

The BS EN ISO 11298-4:2021 standard provides a comprehensive guide to the CIPP lining process, including:

• Material Specifications: Detailed requirements for the materials used in CIPP lining, ensuring compatibility and performance.
• Installation Procedures: Step-by-step instructions for the installation process, ensuring consistency and quality across projects.
• Testing and Quality Assurance: Guidelines for testing the integrity and performance of the newly lined pipes, ensuring they meet the required standards.
• Safety and Environmental Considerations: Best practices for ensuring the safety of workers and minimizing environmental impact during the renovation process.

Conclusion

The BS EN ISO 11298-4:2021 standard is a vital resource for anyone involved in the renovation of underground water supply networks. By providing clear guidelines for the use of CIPP lining, this standard helps ensure that projects are completed efficiently, cost-effectively, and sustainably. Whether you are an engineer, contractor, or utility company, this standard is an essential tool for modernizing and maintaining critical water supply infrastructure.

BS EN ISO 11298-4:2021

This standard BS EN ISO 11298-4:2021 Plastics piping systems for renovation of underground water supply networks is classified in these ICS categories:

• 23.040.45 Plastics fittings
• 93.025 External water conveyance systems
• 23.040.20 Plastics pipes

This document, in conjunction with ISO 11298-1, specifies requirements and test methods for cured-in-place pipes and fittings used for the renovation of water supply networks, which transport water intended for human consumption, including raw water intake pipelines.

It applies to independent (fully structural, class A) and interactive (semi structural, class B) pressure pipe liners, as defined in ISO 11295, which do not rely on adhesion to the existing pipeline. It applies to the use of various thermosetting resin systems, in combination with compatible fibrous carrier materials, reinforcement, and other process-related plastics components (see 5.1).

It does not include requirements or test methods for resistance to cyclic loading or the pressure rating of CIPP liners where passing through bends, which are outside the scope of this document.

It is applicable to cured-in-place pipe lining systems intended to be used at a service temperature of up to 25 °C.