Guidance and recommendations on design, selection and installation of vents to safeguard the structural integrity of enclosures protected by gaseous fire-extinguishing systems (ISO 21805:2023)

This document gives guidelines for fulfilling the requirements contained in ISO 6183:2022, 6.4.1 and 7.4.1 and ISO 14520‑1:2023, 5.2.1 h) and 5.3 h), in respect to over- and under-pressurization venting and post-discharge extract.
It considers the design, selection and installation of vents to safeguard the structural integrity of enclosures protected by fixed gaseous extinguishing systems and the post-discharge venting provisions where used.

Anleitung für die Konstruktion, Auswahl und Installation von Druckentlastungsöffnungen zur Sicherstellung der strukturellen Integrität von Gehäusen, die durch ortsfeste Gaslöschanlagen geschützt sind (ISO 21805:2023)

Dieses Dokument enthält Anleitungen für die Erfüllung der Anforderungen von ISO 6183:2022N1, 6.4.1 und 7.4.1, sowie von ISO 14520 1:2023N2, 5.2.1 h) und 5.3 h), in Bezug auf Über  und Unterdruckentlastungsvorrichtungen und die Nachentlüftung.
Es behandelt die Konstruktion, Auswahl und Installation von Entlüftungsvorrichtungen, mit dem Ziel, die strukturelle Integrität von Räumen sicherzustellen, die durch ortsfeste Gaslöschanlagen geschützt werden, und betrachtet die Anforderungen an die Nachentlüftung, sofern verwendet.

Lignes directrices et recommandations relatives à la conception, à la sélection et à l'installation d'évents pour préserver l'intégrité structurelle des enceintes protégées par des systèmes d'extinction d'incendie à gaz (ISO 21805:2023)

Le présent document donne des lignes directrices relatives à la manière de satisfaire aux exigences contenues dans l’ISO 6183:2022, 6.4.1 et 7.4.1 et dans l’ISO 14520‑1:2023, 5.2.1 h) et 5.3 h), en ce qui concerne les évents en cas de surpression et de dépression et l’extraction post-émission.
Il couvre la conception, la sélection et l’installation d’évents permettant de préserver l’intégrité structurelle des enceintes protégées par des systèmes fixes d’extinction d’incendie à gaz et les dispositions de ventilation post-émission lorsqu’ils sont utilisés.

Navodilo in priporočila za projektiranje, izbiro in vgradnjo prezračevalnih naprav za zagotavljanje strukturne integritete namestitvenih prostorov, zaščitenih s sistemi za gašenje s plinom (ISO 21805:2023)

Ta dokument vsebuje smernice za izpolnjevanje zahtev iz standarda ISO 6183:2022, točki 6.4.1 in 7.4.1, in standarda ISO 14520‑1:2023, točki 5.2.1 h) in 5.3 h), glede prezračevanja s podtlakom in nadtlakom ter odzračevanja.
Upošteva projektiranje, izbiro in vgradnjo prezračevalnih naprav za zagotavljanje strukturne integritete namestitvenih prostorov, zaščitenih s fiksnimi sistemi za gašenje s plinom, in določbe za naknadno odzračevanje.

General Information

Status
Published
Publication Date
28-Feb-2023
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
01-Mar-2023
Completion Date
01-Mar-2023

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SLOVENSKI STANDARD
SIST EN ISO 21805:2023
01-junij-2023
Nadomešča:
SIST-TS CEN ISO/TS 21805:2019
Navodilo in priporočila za projektiranje, izbiro in vgradnjo prezračevalnih naprav
za zagotavljanje strukturne integritete namestitvenih prostorov, zaščitenih s
sistemi za gašenje s plinom (ISO 21805:2023)
Guidance and recommendations on design, selection and installation of vents to
safeguard the structural integrity of enclosures protected by gaseous fire-extinguishing
systems (ISO 21805:2023)
Anleitung für die Konstruktion, Auswahl und Installation von Entlüftungen zur
Gewährleistung der strukturellen Integrität von Gehäusen, die durch ortsfeste
Gaslöschanlagen geschützt sind (ISO 21805:2023)
Lignes directrices et recommandations relatives à la conception, à la sélection et à
l'installation d'évents pour préserver l'intégrité structurelle des enceintes protégées par
des systèmes d'extinction d'incendie à gaz (ISO 21805:2023)
Ta slovenski standard je istoveten z: EN ISO 21805:2023
ICS:
13.220.10 Gašenje požara Fire-fighting
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
SIST EN ISO 21805:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 21805:2023

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SIST EN ISO 21805:2023


EN ISO 21805
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2023
EUROPÄISCHE NORM
ICS 13.220.10; 91.140.30 Supersedes CEN ISO/TS 21805:2019
English Version

Guidance and recommendations on design, selection and
installation of vents to safeguard the structural integrity of
enclosures protected by gaseous fire-extinguishing
systems (ISO 21805:2023)
Lignes directrices et recommandations relatives à la Anleitung für die Konstruktion, Auswahl und
conception, à la sélection et à l'installation d'évents Installation von Entlüftungen zur Gewährleistung der
pour préserver l'intégrité structurelle des enceintes strukturellen Integrität von Gehäusen, die durch
protégées par des systèmes d'extinction d'incendie à ortsfeste Gaslöschanlagen geschützt sind (ISO
gaz (ISO 21805:2023) 21805:2023)
This European Standard was approved by CEN on 7 August 2022.

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, 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
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21805:2023 E
worldwide for CEN national Members.

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SIST EN ISO 21805:2023
EN ISO 21805:2023 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 21805:2023
EN ISO 21805:2023 (E)
European foreword
This document (EN ISO 21805:2023) has been prepared by Technical Committee ISO/TC 21
"Equipment for fire protection and fire fighting" in collaboration with 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 September 2023, and conflicting national standards
shall be withdrawn at the latest by September 2023.
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 CEN ISO/TS 21805:2019.
Any feedback and questions on this document should be directed to the users’ natio
...

SLOVENSKI STANDARD
oSIST prEN ISO 21805:2021
01-julij-2021
Navodilo za projektiranje, izbiro in vgradnjo prezračevalnih naprav za
zagotavljanje strukturne integritete namestitvenih prostorov, zaščitenih s sistemi
za gašenje s plinom (ISO/DIS 21805:2021)
Guidance on design, selection and installation of vents to safeguard the structural
integrity of enclosures protected by gaseous fire-extinguishing systems (ISO/DIS
21805:2021)
Anleitung für die Konstruktion, Auswahl und Installation von Entlüftungen zur
Gewährleistung der strukturellen Integrität von Gehäusen, die durch ortsfeste
Gaslöschanlagen geschützt sind (ISO/DIS 21805:2021)
Lignes directrices pour la conception, la sélection et l'installation d'évents pour préserver
l'intégrité structurelle des enceintes protégées par des systèmes fixes de lutte contre
l'incendie à gaz (ISO/DIS 21805:2021)
Ta slovenski standard je istoveten z: prEN ISO 21805
ICS:
13.220.10 Gašenje požara Fire-fighting
91.140.30 Prezračevalni in klimatski Ventilation and air-
sistemi conditioning systems
oSIST prEN ISO 21805:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 21805:2021

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oSIST prEN ISO 21805:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 21805
ISO/TC 21/SC 8 Secretariat: SA
Voting begins on: Voting terminates on:
2021-05-20 2021-08-12
Guidance on design, selection and installation of vents to
safeguard the structural integrity of enclosures protected
by gaseous fire-extinguishing systems
Lignes directrices pour la conception, la sélection et l'installation d'évents pour préserver l'intégrité
structurelle des enceintes protégées par des systèmes fixes de lutte contre l'incendie à gaz
ICS: 91.140.30; 13.220.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 21805:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021

---------------------- Page: 3 ----------------------
oSIST prEN ISO 21805:2021
ISO/DIS 21805:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

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oSIST prEN ISO 21805:2021
ISO/DIS 21805:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 2
5 Use and limitations .
...

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