BS EN 13476-2-2018 + A1-2020 PDF

Full title and description

BS EN 13476-2:2018 + A1:2020 — Plastics piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC‑U), polypropylene (PP) and polyethylene (PE). Part 2: Specifications for pipes and fittings with smooth internal and external surface and the system, Type A. This British adoption includes Amendment A1 (2020) to the 2018 European text and specifies material, dimensional, performance and marking requirements for Type A structured‑wall systems intended for buried, non‑pressure drainage and sewerage applications.

Abstract

This part of EN 13476, taken as BS EN 13476-2:2018+A1:2020, defines terminology and the technical requirements (materials, dimensions, stiffness/tolerance classes, joints and tests) for structured‑wall plastic pipes and fittings with smooth internal and external surfaces (Type A). It covers products manufactured from PVC‑U, PP and PE intended for non‑pressure underground drainage and sewerage, including requirements for jointing (elastomeric ring seals, welded or fused joints), marking and system-level properties. The document also specifies applicable test methods, selectable options for impact resistance and ring flexibility, and guidance on application coding (U / UD).

General information

• Status: Withdrawn / superseded (British adoption of EN 13476-2:2018 with A1:2020; later replaced by a 2025 edition at the European level—see FAQ).
• Publication date: 16 June 2020 (BS adoption of EN 13476-2:2018 + A1:2020).
• Publisher: British Standards Institution (BSI) — British adoption of the CEN (EN) text.
• ICS / categories: 23.040.20 (Plastics pipes); 93.030 (External sewage systems).
• Edition / version: BS EN 13476-2:2018 + A1:2020 (European standard EN 13476-2:2018 with Amendment A1:2020; adopted as a British Standard).
• Number of pages: 58 (typical published PDF/printed edition for the BS adoption).

Publication, publisher and pagination details summarized from the British adoption records and national standards distributors.

Scope

This standard, together with EN 13476‑1, applies to structured‑wall pipes and fittings made of PVC‑U, PP or PE that are intended for buried, non‑pressure drainage and sewerage systems. It is specific to Type A products (smooth internal and external surfaces) and covers: product design and dimensions; material and manufacturing requirements; joint types (integral sockets with elastomeric ring seals, welded and fused joints); stiffness and tolerance classes; marking and application codes (U for buried outside building structure, UD for buried inside and outside); test methods and parameters; and optional requirements (impact resistance and ring flexibility) provided in annexes. The purchaser/specifier is responsible for selecting the appropriate options and classes for the intended application and for compliance with any applicable national regulations and installation practices.

Key topics and requirements

• Materials covered: unplasticized PVC (PVC‑U), polypropylene (PP) and polyethylene (PE).
• Product type: Structured‑wall piping systems — Type A (smooth internal and external surfaces).
• Jointing: Specification for elastomeric ring seal joints (integral socket), plus welded and fused joints where applicable.
• Performance classes: Stiffness classes, application classes (U / UD), and tolerance classes with dimensional limits.
• Test methods and parameters: Defined normative test procedures and pass/fail criteria for mechanical and physical performance.
• Optional selections: Annexes provide alternative options for impact resistance, ring flexibility and ring stiffness — national forewords may select options.
• Marking and traceability: Product marking (material, class, application code U/UD, manufacturer identification) and recommendations on colour.
• System approach: Requirements not only for individual pipes/fittings but for the integrated system performance for non‑pressure use.

Typical use and users

Typical users include: manufacturers of structured‑wall plastic pipes and fittings; product design and quality teams; civil and drainage engineers; specifiers and consultants preparing tender and procurement documents; testing and certification bodies; contractors and installers working on buried non‑pressure drainage and sewerage projects; and national standards committees and regulators who reference or adopt the EN text. The standard is used for product specification, conformity assessment and supplier selection in drainage and sewerage infrastructure work.

Related standards

EN 13476 is a multi‑part system standard. Related parts and documents include: EN 13476‑1 (general requirements and performance characteristics), EN 13476‑3 (specifications for Type B — smooth internal / profiled external surfaces), and EN 13476‑4 (assessment of conformity / CEN/TS). The part also normatively references other standards relevant to materials and joints (for example EN 681 series for elastomeric seals, EN 1401‑1 for PVC‑U drainage, EN 1852‑1 for PP drainage and relevant polyethylene test methods). For installation guidance, CEN/TR 1046 is noted.

Keywords

structured‑wall pipes, Type A, plastics piping systems, non‑pressure drainage, sewerage, PVC‑U, polypropylene, polyethylene, elastomeric ring seal, welded joints, stiffness class, tolerance class, marking, EN 13476

FAQ

Q: What is this standard?

A: BS EN 13476‑2:2018 + A1:2020 is the British adoption of EN 13476‑2:2018 amended by A1:2020. It specifies technical requirements for structured‑wall plastics pipes and fittings with smooth internal and external surfaces (Type A) intended for buried, non‑pressure drainage and sewerage systems.

Q: What does it cover?

A: It covers materials (PVC‑U, PP, PE), dimensional and tolerance classes, stiffness and application classes, joint types (elastomeric ring seals, welded/fused), test methods and parameters, marking and system requirements for Type A structured‑wall products. It also provides optional annex provisions (impact resistance, ring flexibility).

Q: Who typically uses it?

A: Manufacturers, designers, civil and drainage engineers, specifiers, installers, test laboratories and conformity assessment bodies working on buried non‑pressure drainage and sewerage systems use this standard for product specification, testing and acceptance.

Q: Is it current or superseded?

A: The EN 13476‑2:2018 + A1:2020 text was published/adopted (BS EN 13476‑2:2018+A1:2020) in June 2020, but the EN text was later superseded by an updated edition (EN 13476‑2:2025) and the 2018/A1:2020 text has been withdrawn at the European level (withdrawal recorded from 15 October 2025). Users should refer to the 2025 edition or the current national adoption for up‑to‑date mandatory requirements.

Q: Is it part of a series?

A: Yes. EN 13476 is a multipart system standard. Part 1 covers general requirements and performance characteristics; Part 2 is the Type A specification; Part 3 covers Type B (profiled external surface); and Part 4 addresses conformity assessment (CEN/TS). The parts are intended to be used together when specifying complete systems.

Q: What are the key keywords?

A: Structured‑wall pipes, Type A, non‑pressure drainage, sewerage, PVC‑U, PP, PE, elastomeric ring seal, welded joints, stiffness class, tolerance class, marking, EN 13476.