BS EN 15885:2018

What is BS EN 15885-Techniques of renovation and repair of drains and sewers about?   

BS EN 15885 is a European Standard on classification and characteristics of techniques for renovation, repair, and replacement of drains and sewers. 

BS EN 15885 specifies a system for the classification of trenchless techniques for renovation, repair, and replacement on the same line of drains and sewers outside buildings, operated under gravity or pressure, including pipes, connections, and manholes. 

Note: BS EN 15885 does not apply for a replacement by open trenching according to EN 1610 and trenchless construction and testing of drains and sewers as new construction off-the-line of the existing drain or sewer according to EN 12889. 

Note: BS EN 15885 does not apply to the specification of requirements for specific products. 

Note: BS EN 15885 does not apply to any work required on the existing pipe prior to renovation, repair, or replacement. 

Note: It is the responsibility of the designer to choose and design the renovation, replacement, and repair systems. 

Note: It does not specify the calculation methods to determine, for each viable technique, the required amount of material needed to secure the desired performance of the pipeline to be rehabilitated. 

Who is BS EN 15885- Techniques of renovation and repair of drains and sewers for?  

BS EN 15885 on classification and characteristics for drains and sewers is relevant to:  

• Drain and sewerage management authorities 
• Material and component manufacturers and suppliers 
• Companies involved in sewage engineering 
• Local authorities 
• Wastewater management companies 
• Treatment plants 
• Specialist contractors 
• Engineers 
• Companies dealing with renovation and repair of drains and sewers 

Why should you use BS EN 15885- Techniques of renovation and repair of drains and sewers?   

Proper functioning drains and sewers are vital for the efficient disposal of wastewater in a manner that does not present health and safety risk to the community. 

BS EN 15885 provides information needed to determine viable options and for identification of the optimal technique with regard to a given set of renovation, repair, or replacement objectives.  

BS EN 15885 establishes a classification of renovation techniques into families, where renovation is applied to continuous lengths of drain or sewer usually between two or more access points. 

For each technique family BS EN 15885 lists relevant existing standards, materials and applications and outlines characteristics including installation aspects, structural and hydraulic capabilities and site impact. 

Individual techniques shall be classified into families where the different renovation technique families are defined and their respective features, including materials, applications, as well as geometric, performance, and installation characteristics, are described. 

Overall, with BS EN 15885-compliant best industry techniques you can select the right techniques for renovation, repair, and replacement of drains and sewers, as per the type of operation. Concerns of drain and sewer blockage, leakages, and overall product failures can thus be minimized. As a result, the operational integrity and reliability of external sewage systems can be maintained.  

What’s changed since the last update?  

BS EN 15885:2018 supersedes EN 15885:2010, which is withdrawn BS EN 15885:2018 has been editorially revised.  

• New Clause 6 "Classification of trenchless replacement techniques for drains and sewers " added 
• Table 1 to Table 9 supplemented by features "Installation equipment", "Surface area" and "Excavation" 
• Technique family “Repair with trowelled material” (previous sub-clause 6.4) renamed “Repair with trowelled or moulded material”, and the distinction between these techniques and Repair by injection clarified by extended text in new 7.2 and 7.4