ISO 11295:2026

ISO 11295:2026

February 2026
International standard Current

Plastics piping systems used for the rehabilitation of pipelines - Classification and overview of strategic, tactical and operational activities

This document establishes the steps of the overall process of pipeline rehabilitation, comprising:strategic and tactical activities:investigation and condition assessment of the existing pipeline;pipeline rehabilitation planning;operational activities:project specification;applications of techniques;documentation of the design and application process.This document defines general terms of pipeline rehabilitation and establishes the classification of families of renovation and trenchless replacement techniques, with description of their respective features.This document is applicable to underground drains and sewers and underground water and gas supply networks.This document does not apply to:new construction provided as network extensions;calculation methods to determine, for each viable technique, the characteristics of lining or replacement pipe material needed to secure the desired performance of the rehabilitated pipeline;techniques providing non-structural pipe liners;techniques for repair.

Main informations

Collections

International ISO standards

Publication date

February 2026

Number of pages

74 p.

Reference

ISO 11295:2026

ICS Codes

23.040.20   Plastics pipes

Print number

1
Sumary
Plastics piping systems used for the rehabilitation of pipelines - Classification and overview of strategic, tactical and operational activities

This document establishes the steps of the overall process of pipeline rehabilitation, comprising:

  • strategic and tactical activities:
  1. investigation and condition assessment of the existing pipeline;
  2. pipeline rehabilitation planning;
  • operational activities:
  1. project specification;
  2. applications of techniques;
  3. documentation of the design and application process.

This document defines general terms of pipeline rehabilitation and establishes the classification of families of renovation and trenchless replacement techniques, with description of their respective features.

This document is applicable to underground drains and sewers and underground water and gas supply networks.

This document does not apply to:

  • new construction provided as network extensions;
  • calculation methods to determine, for each viable technique, the characteristics of lining or replacement pipe material needed to secure the desired performance of the rehabilitated pipeline;
  • techniques providing non-structural pipe liners;
  • techniques for repair.
Replaced standards (1)
ISO 11295:2022
January 2022
International standard Cancelled
Plastics piping systems used for the rehabilitation of pipelines - Classification and overview of strategic, tactical and operational activities

This document specifies the steps of the overall process of pipeline rehabilitation, comprising: —    information on strategic and tactical activities: a) investigation and condition assessment of the existing pipeline; b) pipeline rehabilitation planning. —    information on and requirements for operational activities: c) project specification; d) applications of techniques; e) documentation of the design and application process. Definitions and classification of families of renovation and trenchless replacement techniques are provided, and their respective features described. Areas of application covered include underground drainage and sewerage networks and underground water and gas supply networks. The following aspects are not covered by the scope of this document: —    new construction provided as network extensions; —    calculation methods to determine, for each viable technique, the characteristics of lining or replacement pipe material needed to secure the desired performance of the rehabilitated pipeline; —    techniques providing non-structural pressure pipe liners; —    techniques for local repair. It is the responsibility of the designer to choose and design the renovation or trenchless replacement pipeline system.

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