Overview
ISO 11296-1:2018 - Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 1: General. This ISO standard sets out the general requirements and test methods for plastics piping systems used to renovate underground, gravity-operated, non-pressure drainage and sewerage networks (maximum surcharge pressure 0.5 bar). It applies to pipes and fittings as manufactured and to the installed lining system, and it defines the common requirements for all renovation technique families. It does not apply to the existing host pipeline itself or to non‑structural sprayed coatings and annular filler.
Key topics and technical requirements
- Scope and application: renovation of gravity sewer and drainage systems with surcharge ≤ 0.5 bar.
- System approach: requirements cover components “at the M stage” (manufactured) and the installed lining system “at the I stage” (as-installed condition).
- Materials and characteristics: specified provisions for material, geometric, mechanical and physical characteristics of pipes and fittings.
- Jointing and marking: expectations for joint performance, sealing and product identification.
- Ancillary components: criteria for additional parts used in renovation systems.
- Installation practice and quality control: preparatory work, storage/handling, equipment, safety, simulated installations, process-related inspection and testing, lining termination, reconnection, final testing and documentation.
- Test methods and sampling: standardized tests to demonstrate fitness for purpose of the installed lining system.
- Normative references: includes related standards such as ISO 4633 and EN 681 series for elastomeric seals, which influence joint and seal material requirements.
Practical applications and users
Who uses ISO 11296-1:2018:
- Municipal water and sewer asset owners and managers specifying renovation works.
- Engineering consultants and design offices preparing rehabilitation specifications.
- Manufacturers of plastics pipes, linings and fittings developing compliant products.
- Trenchless rehabilitation contractors performing relining, cured-in-place, close-fit or other lining methods.
- Testing and inspection bodies verifying installed system performance.
Practical value:
- Ensures consistent quality and performance for plastics lining systems in trenchless rehabilitation projects.
- Helps contractors and specifiers verify “as-installed” fitness for purpose, reducing risk of failure post-renovation.
- Supports procurement and compliance by defining common test and documentation requirements.
Related standards
- ISO 11296 series (renovation system standards) - other parts cover specific techniques (e.g., close-fit, cured-in-place, spirally-wound, discrete pipes).
- ISO 11297 / ISO 11298 / ISO 11299 - analogous system standards for pressurized drainage, water supply and gas network renovation.
- Normative references cited in the standard: ISO 4633, EN 681-1/2/3/4 (elastomeric seals).
Keywords: ISO 11296-1:2018, plastics piping systems, renovation, non-pressure drainage, sewerage networks, lining system, trenchless rehabilitation, gravity sewers.