BS EN ISO 11295-2022 PDF

Full title and description

STB BS EN ISO 11295-2022 — Plastics piping systems used for the rehabilitation of pipelines: classification and overview of strategic, tactical and operational activities. This publication is the British adoption of EN ISO 11295:2022 and provides a high-level framework for planning, selecting and documenting plastic-pipe-based renovation and trenchless replacement techniques for underground drainage, sewerage, water and gas distribution networks.

Abstract

This standard specifies the steps of the overall pipeline rehabilitation process, covering strategic and tactical activities (investigation and condition assessment, rehabilitation planning) and operational activities (project specification, application of techniques, and documentation of design and application). It defines and classifies families of renovation and trenchless replacement techniques and describes their typical features and areas of application; it does not provide detailed calculation methods or cover new network extensions, non‑structural liners or local repair techniques.

General information

• Status: Originally published as a British/European adoption (BS EN ISO 11295:2022); the corresponding ISO edition (ISO 11295:2022) has been withdrawn and superseded by ISO 11295:2026 (see notes).
• Publication date: BS EN ISO 11295:2022 — April 1, 2022 (British publication/adoption). The ISO record shows the 2022 edition published January 2022 and later superseded in February 2026.
• Publisher: British Standards Institution (BSI) — national adoption of EN/ISO text; original International Standard published by ISO.
• ICS / categories: 23.040.01 (Pipeline components and pipelines in general).
• Edition / version: BS EN ISO 11295:2022 (adoption of ISO 11295:2022). ISO has published a further edition ISO 11295:2026 which supersedes the 2022 edition.
• Number of pages: Commonly listed as 80 pages for the BS/EN PDF distribution; ISO bibliographic record lists the 2022 edition as 67 pages while national publishers list 80 pages for the adopted BS/EN publication.

Scope

Provides classification, terminology and an overview of strategic, tactical and operational activities for rehabilitation of existing pipelines using plastics piping systems and in‑situ formed plastic composite pipes. Applicable to renovation and trenchless replacement of both non‑pressure and pressure pipelines in underground drainage/sewerage and water and gas supply networks. Excludes new-construction network extensions, detailed calculation methods for lining/replacement material performance, non‑structural pressure liners and purely local repair methods.

Key topics and requirements

• Classification of families of renovation and trenchless replacement techniques (linings, relining, pipe‑bursting, slip‑lining, cured‑in‑place, in‑situ-formed composite pipes, etc.).
• Guidance on strategic activities: investigation, condition assessment and rehabilitation planning.
• Operational requirements: project specification, specification of technique selection criteria, application procedures and documentation of design and installation.
• Information on areas of application and typical features/limitations of each technique family (suitability for sewer, drainage, water, gas networks; structural vs non‑structural solutions).
• Notes on responsibilities: the designer is responsible for selecting/designing an appropriate renovation or trenchless replacement system and ensuring performance meets project requirements.

Typical use and users

Used by pipeline designers, civil and environmental engineers, utility operators (water, sewer, gas), contractors performing trenchless rehabilitation, asset managers, technical specifiers and procurement teams to define rehabilitation strategies, prepare project specifications and compare technique families during pre‑project planning and tendering. It is a guidance/classification standard rather than a detailed design/installation specification.

Related standards

References and relationships include earlier ISO 11295 editions (e.g., ISO 11295:2017), national standards on trenchless rehabilitation and technique‑specific parts (EN/ISO and national parts describing detailed methods, testing and materials), and the newer ISO 11295:2026 which publishes the revised international edition that supersedes the 2022 version. Users should check relevant EN/ISO parts and national technical regulations for method‑specific requirements.

Keywords

plastic piping systems, pipeline rehabilitation, trenchless replacement, renovation techniques, relining, cured‑in‑place pipe, pipe‑bursting, slip‑lining, condition assessment, project specification, sewer rehabilitation, water supply networks, gas distribution.

FAQ

Q: What is this standard?

A: It is the British/European adoption (BS EN ISO 11295:2022) of an ISO technical standard that classifies and gives an overview of activities related to rehabilitation of pipelines using plastics piping systems. It is intended as an overview and classification document rather than a detailed method standard.

Q: What does it cover?

A: It covers strategic, tactical and operational steps in pipeline rehabilitation: investigation and condition assessment, rehabilitation planning, project specification, technique application and documentation; and provides definitions and classification of technique families and their features. It does not cover new network extensions, detailed material calculation methods, non‑structural pressure liners or only-local repairs.

Q: Who typically uses it?

A: Pipeline designers, utility asset managers, consultants, contractors involved in trenchless rehabilitation, procurement/specification teams and regulators looking for a consistent classification and overview of rehabilitation approaches.

Q: Is it current or superseded?

A: The ISO bibliographic record shows ISO 11295:2022 as published in early 2022 but later withdrawn and superseded by ISO 11295:2026 (published February 2026). National adoptions (BS EN ISO 11295:2022) were published in 2022; users should consult the ISO 11295:2026 text and their national standards body for the current, authoritative edition and any national transition/withdrawal notices. Specific dates: ISO 11295:2022 publication early 2022; ISO lists withdrawal stage with replacement ISO 11295:2026 published February 2026.

Q: Is it part of a series?

A: Yes — ISO 11295 exists as an international deliverable with prior and subsequent editions (for example 2017 edition, 2022 edition, and the 2026 edition). It sits alongside other EN/ISO and national standards addressing specific trenchless rehabilitation techniques, materials and test methods.

Q: What are the key keywords?

A: Plastics piping systems, rehabilitation, trenchless, relining, cured‑in‑place, pipe‑bursting, slip‑lining, renovation, condition assessment, project specification.