BS EN 3-9-2006 (2008) PDF

Full title and description

STB BS EN 3-9:2006 (adopted 2008) — Portable fire extinguishers. Part 9: Additional requirements to EN 3‑7 for pressure resistance of CO2 extinguishers. This document is the national (STB) publication of the European standard EN 3‑9:2006 and sets specific design, assembly, inspection and testing rules addressing pressure-related risks for portable CO2 fire extinguishers.

Abstract

This standard specifies additional requirements — beyond those in EN 3‑7 — that apply to the pressure resistance of CO2 portable fire extinguishers. It covers component classification, materials compatibility, dimensional and thread requirements, pressure testing and marking needed to ensure safe operation under expected temperature and pressure conditions.

General information

• Status: National adoption (STB) of EN 3‑9:2006 — typically listed as active/definitive in national catalogues; national statuses can vary by country and publishing body.
• Publication date: EN 3‑9 published 2006 (EN reference year). National adoption under the STB title was published/entered as 2008.
• Publisher: European standard developed under CEN (EN 3‑9:2006); national publication under the STB scheme (national standards body publishing the adopted text).
• ICS / categories: 13.220.10 — Fire‑fighting equipment.
• Edition / version: EN 3‑9:2006 (national adoption typically labelled STB BS EN 3‑9:2006 (2008) to show original EN year and national publication year).
• Number of pages: Varies by national print/adoption (commonly in the mid‑teens — e.g., 16–17 pages; some national translations/editions list up to ~24 pages depending on annexes and formatting).

Scope

EN 3‑9:2006 provides the additional requirements applicable specifically to the pressure resistance of portable CO2 extinguishers, complementing the general construction and performance requirements of EN 3‑7. The scope includes rules for design, assembly, inspection and pressure testing of cylinders and components (for example cylinder, operating device, hose, nozzle and bursting disc), and classification of parts in Annex A. The standard is intended to ensure safety under expected service temperatures and pressures and to support conformity assessment related to pressure risk.

Key topics and requirements

• Additional pressure‑resistance requirements specific to CO2 portable extinguishers (tests and verification beyond EN 3‑7).
• Classification of extinguisher components and required markings (Annex A and related clauses).
• Materials and compatibility rules — materials in contact with CO2 must be suitable and non‑metallic bodies for operating devices are restricted.
• Dimensional, thread and interface requirements (including features that ensure safe venting when threads are disengaged).
• Pressure testing, inspection and conformity notes intended to align with relevant pressure directives and safe‑use considerations.

Typical use and users

Used by portable fire‑extinguisher manufacturers and their design teams, testing and inspection laboratories, conformity assessment bodies, national standards bodies that adopt EN texts (such as STB for the national edition), procurement/specification teams, and health & safety managers responsible for selecting or approving CO2 extinguishers for industrial and commercial applications.

Related standards

Mainly linked to other parts of the EN 3 series (notably EN 3‑7 which EN 3‑9 supplements). Related national and international standards and codes of practice for portable fire extinguishers and maintenance include EN 3‑1 to EN 3‑10 series, BS 5306 (code of practice for portable extinguisher maintenance), and other EN 3 parts addressing construction, mechanical tests and pressure classes.

Keywords

Portable fire extinguisher; CO2 extinguisher; pressure resistance; EN 3‑9:2006; STB adoption; component classification; pressure testing; extinguisher design; materials compatibility.

FAQ

Q: What is this standard?

A: It is the EN 3‑9:2006 European standard addressing additional pressure‑resistance requirements for portable CO2 fire extinguishers; the STB title indicates a national adoption/publication of that EN text (here shown as STB BS EN 3‑9:2006 (2008)).

Q: What does it cover?

A: The standard covers design, assembly, inspection and test rules specifically related to pressure risk for CO2 portable extinguishers — including component classification, materials compatibility, thread and interface requirements, pressure tests and marking.

Q: Who typically uses it?

A: Manufacturers, testing and conformity assessment laboratories, standards bodies (national adopters), safety managers and procurement/specification teams involved with portable CO2 extinguisher selection, design and certification.

Q: Is it current or superseded?

A: The EN reference is EN 3‑9:2006; national adoption dates vary (the STB edition is shown as 2008). National statuses can differ — some catalogues list the document as definitive/active while others may show changes or withdrawal notices for national (UK) adoptions; always confirm the current status with the national standards body before relying on the text for compliance.

Q: Is it part of a series?

A: Yes — it is one part of the EN 3 series (Portable fire extinguishers), which is a multi‑part standard addressing different construction, performance, pressure and test requirements for portable fire extinguishers. EN 3‑9 specifically supplements EN 3‑7 for CO2 pressure requirements.

Q: What are the key keywords?

A: CO2 extinguisher, pressure resistance, EN 3‑9:2006, portable fire extinguisher, component classification, pressure testing, STB adoption.