BS ISO 16422-2014 PDF

Full title and description

STB BS ISO 16422-2014 — Pipes and joints made of oriented unplasticized poly(vinyl chloride) (PVC‑O) for the conveyance of water under pressure — Specifications. This designation refers to the ISO international standard adoption (published 2014) and its British/related national edition; it sets requirements for PVC‑O pipes and compatible joints used in pressurized water systems (mains, services, pressurized sewer and irrigation) where pipes are not exposed to direct sunlight.

Abstract

ISO 16422:2014 specifies material, dimensional, mechanical and performance requirements for oriented unplasticized PVC (PVC‑O) pipes and joints intended for the conveyance of cold water under pressure (including drinking water) and for general purposes up to and including 45 °C, with typical application pressures up to 25 bar. The standard covers fitness‑for‑purpose aspects such as hydrostatic strength, impact resistance and pressure fluctuation performance. Joints made from other materials must additionally conform to their own relevant standards.

General information

• Status: Withdrawn / superseded (revised by multipart ISO 16422 series, 2024).
• Publication date: February 2014 (BS edition published 28 February 2014).
• Publisher: International Organization for Standardization (ISO); national adoption published by BSI as BS ISO 16422:2014 (title shown here as STB BS ISO 16422-2014).
• ICS / categories: 23.040.20; 23.040.45; 91.140.60 (plastics pipes, plastics fittings, water supply systems).
• Edition / version: Edition 2 (2014).
• Number of pages: ISO original ~26 pages (published 2014); national/BS publication copies commonly show a larger printed page count (e.g., 38 pages in some national distributions).

Scope

This standard applies to pipes and joints manufactured from oriented unplasticized poly(vinyl chloride) (PVC‑O) for piping systems used underground or above ground (provided they are not exposed to direct sunlight) for the conveyance of water under pressure. Typical applications include water mains and service lines, pressurized sewer systems and irrigation systems. The document addresses suitability for cold water (up to 25 °C for typical pressure ratings), with guidance for service up to 45 °C where stated, and performance requirements for pressures up to 25 bar.

Key topics and requirements

• Material specification for oriented unplasticized PVC (PVC‑O) and requirements for orientation processing.
• Dimensional and tolerance requirements for pipe outside diameter, wall thickness and length.
• Pressure‑rating classes and hydrostatic strength requirements (design up to 25 bar, temperature considerations up to 45 °C).
• Mechanical performance: impact resistance, resistance to pressure fluctuations and cyclic loading.
• Requirements for joint types, joint performance, and compatibility where joints are made of other materials.
• Test methods for verifying physical, mechanical and hydraulic properties.
• Marking, labelling and documentation requirements (designation, pressure class, material identification, manufacturer).
• Fitness for drinking water use where applicable (requirements to avoid contamination).
• Installation and handling notes to ensure intended long‑term performance (e.g., protection from direct sunlight, bedding and backfilling recommendations referenced).

Typical use and users

Used by pipe and fittings manufacturers, water utility engineers, civil and municipal engineers, specification writers, procurement teams, testing laboratories and regulatory authorities. Typical uses include design and specification of buried and above‑ground pressurized water mains, service connections, pressurized sewer lines and irrigation systems where higher impact resistance and pressure performance are required.

Related standards

ISO 16422:2014 was the second edition of the series and has since been revised and replaced by a multipart ISO 16422 series published in 2024 (for example ISO 16422‑1:2024, ISO 16422‑2:2024 and ISO 16422‑5:2024). Earlier edition: ISO 16422:2006. Related ICS and product standards for plastics pipes and fittings, drinking‑water materials and pressure pipe testing are commonly referenced alongside this standard.

Keywords

PVC‑O; oriented PVC; pipes; joints; water mains; drinking water; pressurized sewer; irrigation; pressure rating; hydrostatic strength; impact resistance; BSI; ISO 16422.

FAQ

Q: What is this standard?

A: ISO 16422:2014 (published as BS ISO 16422:2014 in national adoption) is an international specification for pipes and joints made from oriented unplasticized poly(vinyl chloride) (PVC‑O) used to convey water under pressure.

Q: What does it cover?

A: It covers material, dimensional, mechanical and hydraulic performance requirements for PVC‑O pipes and joints (including test methods), marking and documentation, and suitability for drinking water and other pressurized water applications up to specified temperatures and pressures (typical design up to 25 bar).

Q: Who typically uses it?

A: Pipe manufacturers, water utilities, civil and municipal engineers, procurement/specification writers, testing laboratories and regulators involved in the design, manufacture, testing and approval of pressurized water piping systems.

Q: Is it current or superseded?

A: ISO 16422:2014 has been withdrawn/superseded and the subject has been revised into multipart standards published in 2024 (for example ISO 16422‑1:2024, ISO 16422‑2:2024 and ISO 16422‑5:2024). For current technical requirements and the latest test methods, refer to the 2024 series.

Q: Is it part of a series?

A: Yes — the original single‑document ISO 16422 was later restructured into a multipart set of standards (parts published in 2024) that separate requirements for pipes, fittings and other components.

Q: What are the key keywords?

A: PVC‑O, oriented unplasticized PVC, pipes, joints, water mains, pressure, drinking water, impact resistance, hydrostatic strength, ISO 16422.