National foreword

This British Standard is the UK implementation of EN 13565‑1:2019+A1:2025. It supersedes BS EN 13565‑1:2019, which is withdrawn.

The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .

The UK participation in its preparation was entrusted to Technical Committee FSH/18/7, Foam/Media Systems.

A list of organizations represented on this committee can be obtained on request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2019.

This European Standard was approved by CEN on 8 February 2019 and includes Amendment 1 approved by CEN on 28 April 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.

European foreword

This document (EN 13565‑1:2019+A1:2025) has been prepared by Technical Committee CEN/TC 191, “Fixed firefighting systems” the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2025, and conflicting national standards shall be withdrawn at the latest by December 2025.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 13565‑1:2019.

The start and finish of text introduced or altered by amendment is indicated in the text by tags .

Compared to the previous edition, the following changes have been made:

the foreword has been updated;
normative references have been updated;
4.1 revised;
4.4 revised;
4.5 revised;
4.6 revised;
4.9 replaces Clause 8;
4.10 replaces Clause 9;
4.11 replaces Clause 10;
Clause 5 changed to ‘performance characteristics of foam components’;
Clause 6, new clause ‘documentation’;
Clause 7 replaces Clause 11;
Clause 8 replaces Clause 12;
Annex A revised;
Annex E requirements clause reference added;
Annex F requirements clause reference added.
Annex G revised;
Annex H revised;
Annex I revised;
Annex J revised;
Annexes K, L, M, N added.

EN 13565, Fixed firefighting systems — Foam systems, is currently composed with the following parts:

Part 1: Requirements and test methods for components;
Part 2: Design, construction and maintenance.

Any feedback and questions on this document should be directed to the users’ national standards body. A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United Kingdom.

1 Scope

The requirements of this document set out the materials, construction, and performance of components intended for use in fixed foam fire fighting systems, and using foam concentrates conforming to EN 1568‑1 to EN 1568‑4. The components covered are: proportioners, sprayers, semi-subsurface hose units, branchpipes, low/medium expansion foam generators, high expansion foam generators, foam chambers, tanks and pressure vessels. Methods of test are given in Annex A to Annex K.

Requirements are also given for the provision of the characteristic data needed for correct application of components.

NOTE 1 Unless otherwise stated pressures are gauge pressures expressed in bar.

The requirements of this document do not cover, except where stated, the use of combinations of components to form part, or the whole, of a fire fighting system.

NOTE 2 Components conforming to this document are not necessarily compatible one with another.

Requirements for pumps, motors and the functioning of mechanical components (i.e. remote control turrets) are outside the scope of this document.

2 Normative references

3 Terms and definitions

4 General construction requirements

4.1 Connections

4.2 Parts intended for removal during routine field maintenance

4.3 Hydrostatic strength

4.4 Castings

4.5 Corrosion resistance of metal parts

4.6 Elastomers

4.7 Plastics and reinforced resin materials

4.8 Heat and fire resistance

4.9 Components for low expansion foam systems

4.10 Components for medium and high expansion foam systems

4.11 Tanks and pressure vessels for foam concentrates or solutions

5 Performance Characteristics of Foam Components

5.1 Discharge coefficients and characteristics of branchpipes, sprayers and low and high back pressure foam generators

5.2 Quality of foam from aspirating components

5.3 Accuracy of proportioning components

6 Documentation

6.1 Preparation and maintenance

6.2 Installation and user documentation

6.3 Design documentation

7 Marking

8 Evaluation of conformity - Initial type testing

8.1 Conformity

8.2 Modification

8.3 Prior testing

8.4 Grouping

8.5 Related components

8.6 Normal production

8.7 Reference samples

8.8 Test sequence

BS EN 13565-1:2019+A1:2025

Fixed firefighting systems. Foam systems - Requirements and test methods for components

Current

Published:

30 Jun 2025