Extended application of results from fire resistance tests - Non- loadbearing walls - Part 1: General

This part identifies the general parameters and factors that affect the fire resistance of non-loadbearing walls (partitions) and need to be taken into account when considering extended application results of non-loadbearing walls tested in accordance with EN 1364-1. It also defines the general rules and principles to which can be applied to establish the resultant influence of a variation in one or more parameters and to determine the limits of the field of extended application together with the content of the report of the study.

Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen - Nichttragende Wände - Teil 1: Allgemeine Grundlagen

Application étendue des résultats d'essais de résistance au feu - Murs non porteurs - Partie 1 : Généralités

Razširjena uporaba rezultatov preskusov požarne odpornosti - Nenosilne stene - 1. del: Splošno

General Information

Status
Not Published
Current Stage
4598 - Decision to abandon - Finalization for Vote
Start Date
21-Sep-2007
Completion Date
21-Sep-2007

Overview

prEN 15254-1 (CEN) defines the general principles for the extended application of fire resistance test results for non-loadbearing walls (partitions) tested in accordance with EN 1364-1. The standard identifies the parameters that influence fire performance, establishes rules for analysing the effect of parameter variations, and specifies the required content of an extended application report. The primary fire performance considered is EI (integrity and insulation) for the reference fire scenario.

Key Topics

  • Reference scenario and reference test: The starting point is a fire test performed per EN 1364-1. The test report supplies the baseline data used for any extension of application.
  • Parameters that affect performance: The standard groups critical parameters into thermal, mechanical and constructional categories. Examples include:
    • Thermal: nominal temperature–time curves
    • Mechanical: restraint against thermal expansion, rotational restraint
    • Constructional: wall height and width, span between supports, panel thickness, number of layers, type and position of fixings
  • Methodology for factor influence analysis:
    • Assess factors initially on a factor-by-factor basis and then on a global basis to capture interactions.
    • Use validated empirical rules, calculation models, historical tests or additional tests where applicable.
    • If no valid model or tests are available, expert judgement may be used as a last resort.
  • Limits to predicted increases: Any predicted increase in fire resistance should be the lesser of 30 minutes and 50% of the maximum fire resistance of the reference tests.

Applications

This part provides practical guidance for manufacturers, testing sponsors, notified bodies, fire engineers and certification bodies who need to:

  • Extend the applicability of a single EN 1364-1 test to variations of a partition product without repeating full-scale testing.
  • Evaluate how changes in materials, dimensions, fixings or restraints affect EI performance.
  • Determine when additional small/full-scale tests or validated calculation models are required versus when empirical rules suffice.

Benefits include more efficient product development, design flexibility, reliable EI classification and consistent reporting that supports compliance with European classification procedures.

Related Standards

Part 1 references and works alongside several harmonised and supporting standards, including but not limited to:

  • EN 1364-1 (fire resistance tests for non-loadbearing walls)
  • EN 1363-1 / EN 1363-2 (general and alternative fire test procedures)
  • EN 13501-2 (fire classification using test data)
  • Eurocodes and ENV guidance on structural fire design and contribution to fire resistance

Reporting and Practical Notes

An extended application report shall be used with the classification document (EN 13501-2) and include: the producing body, sponsor, tested wall type(s), reference to the extended application standard, and a clear description of proposed variations. The standard emphasises validated methods, transparent factor analysis and clear documentation to support safe, auditable extension of test results.

Frequently Asked Questions

prEN 15254-1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Extended application of results from fire resistance tests - Non- loadbearing walls - Part 1: General". This standard covers: This part identifies the general parameters and factors that affect the fire resistance of non-loadbearing walls (partitions) and need to be taken into account when considering extended application results of non-loadbearing walls tested in accordance with EN 1364-1. It also defines the general rules and principles to which can be applied to establish the resultant influence of a variation in one or more parameters and to determine the limits of the field of extended application together with the content of the report of the study.

This part identifies the general parameters and factors that affect the fire resistance of non-loadbearing walls (partitions) and need to be taken into account when considering extended application results of non-loadbearing walls tested in accordance with EN 1364-1. It also defines the general rules and principles to which can be applied to establish the resultant influence of a variation in one or more parameters and to determine the limits of the field of extended application together with the content of the report of the study.

prEN 15254-1 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/117. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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Standards Content (Sample)


SLOVENSKI oSIST prEN 15254-1:2005

PREDSTANDARD
julij 2005
Razširjena uporaba rezultatov preskusov požarne odpornosti - Nenosilne
stene - 1. del: Splošno
Extended application of results from fire resistance tests - Non- loadbearing walls -
Part 1: General
ICS 13.220.50 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2005
ICS
English version
Extended application of results from fire resistance tests - Non-
loadbearing walls - Part 1: General
Erweiterter Anwendungsbereich der Ergebnisse von
Feuerwiderstandsprüfungen - Nichttragende Wände - Teil
1: Allgemeine Grundlagen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 127.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15254-1:2005: E
worldwide for CEN national Members.

Contents Page
Foreword. 3
1 Scope. 4
2 Normative references. 4
3 Definitions. 6
4 Basis and methodology of establishing the extended application . 7
5 Critical parameters. 8
5.1 Common thermal parameters . 8
5.2 Common mechanical parameters . 8
5.3 Common constructional parameters. 8
6 Fire engineering rules for the establishing of the factor influences in a
quantitative manner. 8
6.1 General. 8
6.2 Thermal performance. 9
6.3 Structural performance. 9
7 Report of the extended application analysis .10
Annex A. 11

Foreword
This document (prEN 15254-1:2005) has been prepared by Technical Committee CEN/TC 127 “Fire
safety in buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative annex A, which is an integral part of this
document.
1 Scope
This Part of prEN 15254-1 identifies the general parameters and factors that affect the fire resistance
of non-loadbearing walls (partitions) and need to be taken into account when considering extended
application of results of non-loadbearing walls tested in accordance with EN 1364: 1. It also defines
the general rules and principles to which can be applied to establish the resultant influence of a
variation in one or more parameters and to determine the limits of the field of extended application
together with the content of the report of the study. The standard is applicable to the following types of
non-loadbearing walls:
 Part 2
 Masonry and gypsum blocks:
 Concrete blocks
 Bricks
 Gypsum blocks
 Aerated concrete blocks
 Aerated concrete panels
 Part 3
 Lightweight partition:
 Boards + studs (metal or timber) + insulation + voids
 Part 4
 Glazed construction:
 Panes
 Part 5
 Metal sandwich panel construction
 Part 6
 Demountable partitions
Some examples of the above partitions are given in figures in the specific parts.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
EN 1363, 1 Fire resistance tests — Part 1: General Requirements
EN 1363-2, Fire resistance tests — Part 2: Alternative and additional procedures
EN 1364-1, Fire resistance tests for non- load bearing elements — Part 1: Non - loadbearing walls
EN 13502-2, Fire classification of construction products and building elements — Part 2: Classification
using data from fire resistance test (excluding products for use in ventilation systems)
ENV 1991-2-2, Eurocode 1. Basis of design and actions on structures — Part 2-2: Actions on
structures exposed to fire
ENV 1992-1-2, Eurocode 2. Design of concrete structures — Part 1-2: General rules. Structural fire
design
ENV 1993-1-2, Eurocode 3. Design of steel structures — Part 1-2: General rules. Structural fire
design
ENV 1994-1-2, Eurocode 4. Design of composite steel and concrete structures — Part 1-2: General
rules. Structural fire design
ENV 1995-1-2, Eurocode 5. Design of timber structures — Part 1-2: General rules. Structural fire
design
ENV 13381-2, Contribution to fire resistance of structural members — Part 3: Vertical membranes
ENV 13381-3, Contribution to fire resistance of structural members — Part 3: Concrete elements
ENV 13381-4, Contribution to fire resistance of structural members — Part 4: Steel elements
ENV 13381-7, Contribution to fire resistance of structural members — Part 7: Timber elements
ISO 13943, Fire safety - Vocabulary
3 Definitions
For the purpose of this part of prEN 15254-1 the definitions given in EN ISO 13943, EN 1363-1, EN
1365-3 and prEN 15254-1, together with the following apply:
3.1
reference scenario
all the fire test conditions and constructional details of the test specimen for which observations of fire
behaviour, changes in temperatures, dimensions and displacement in the test specimen are given in
the test report
3.2
reference test
fire resistance test in accordance with EN 1364-1, and where applicable EN 1363-2, on which the
extended application is based and the results of which are used as the main source of data for the
extended application
3.3
test result
outcome of a testing process and its associated procedures detailed within a specific test standard
(which may include some processing of the results from the testing of a number of specimens). A test
result is expressed in terms of one or more fire performance parameter(s)
3.4
constructional parameter
aspect of the reference specimen that varies for the purpose of the prEN 15254-1 (other needs in
practice) and may change of the fire resistance performance
3.5
factor
one of the possible variations that may be applied to a parameter
3.6
factor influence
one of the potential causes of a change in the fire resistance due to a factor
3.7
direct field of application of test results
outcome of a process (involving the application of a defined rule) whereby a single test result,
expressed in terms of all the relevant fire performance parameters, is deemed to be equally valid for
variations in or more of the product properties
3.8
extended field of application of test results
outcome of the process (involving the application of defined rules that may incorporate calculation
procedures) that predicts the result of a test, expressed in terms of all the relevant fire performance
parameters, on the basis of one or more test results to the specific test method and related to the
particular product (including variations of the product properties)
3.9
classification
process defined in EN 13501-2, whereby the fire performance parameters obtained from the results of
one test, or a set of tests, or from a process of extended application, are compared with limiting
values for those parameters that are set as criteria for achieving a certain classific
...

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The standard prEN 15254-1, titled "Extended application of results from fire resistance tests - Non-loadbearing walls - Part 1: General," delineates a critical framework for evaluating the fire resistance of non-loadbearing walls, which are essential elements in modern construction. This document's scope is notably comprehensive, addressing the general parameters and factors that influence fire resistance specifically in non-loadbearing partitions. One of the significant strengths of prEN 15254-1 is its clear identification of the necessary factors to consider when assessing the extended application of fire resistance test results mandated by EN 1364-1. By focusing on the nuances of non-loadbearing walls, the standard ensures that designers and engineers can effectively determine the implications of variation in parameters, thereby enhancing the reliability of fire safety measures in building design. Furthermore, the general rules and principles outlined in this standard provide a systematic approach to establishing the resultant influence of parameter variations. This is particularly relevant in real-world applications where the understanding of fire resistance can mean the difference between safety and risk in residential and commercial spaces. The standard also outlines the methodology for determining the limits of the extended application field, offering clarity that is essential for compliance and implementation within construction practices. Overall, prEN 15254-1 stands as a vital reference for professionals in the construction and fire safety industries, promoting a standardized approach to the assessment of non-loadbearing wall fire resistance. Its relevance in the context of regulatory compliance and safety cannot be overstated, making it an indispensable resource in ensuring that the built environment meets rigorous safety standards.

Le document de normalisation oSIST prEN 15254-1:2005 présente une approche systématique pour l'application étendue des résultats des tests de résistance au feu des murs non porteurs, notamment les cloisons. Son champ d'application est clairement défini, identifiant les paramètres généraux et les facteurs influençant la résistance au feu de ces structures. L'importance de ce standard réside dans la définition des règles et principes généraux qui permettent d'évaluer l'impact des variations de ces paramètres sur le comportement incendie. Parmi les forces de la norme prEN 15254-1, on note sa clarté dans l'établissement des directives nécessaires pour interpréter les résultats des tests selon la norme EN 1364-1. Ceci est crucial pour garantir que les enquêtes sur les performances au feu soient non seulement précises mais aussi pertinentes dans un contexte plus large. La norme permet une évaluation fiable des murs non porteurs, soutenant ainsi la sécurité des bâtiments en cas d'incendie. Ce standard est particulièrement pertinent dans le domaine de la construction, où la résistance au feu est une exigence réglementaire incontournable. Il offre une méthode détaillée pour étendre les résultats de tests, ce qui est essentiel pour les professionnels souhaitant concevoir des bâtiments répondant efficacement aux normes de sécurité incendie tout en optimisant leurs coûts et leurs ressources. En résumé, la prEN 15254-1 est une norme essentielle qui fournit un cadre solide pour le développement et l'évaluation des murs non porteurs en ce qui concerne la résistance au feu. Sa capacité à intégrer les variations de paramètres et à établir des limites claires pour l'application étendue en fait un outil précieux pour les ingénieurs et les architectes œuvrant dans le domaine de la sécurité incendie.

기준 문서 prEN 15254-1은 비하중 지지 벽(구획)의 화재 저항성 테스트 결과의 확장 적용에 대한 중요한 기준으로, 해당 부분에서는 비하중 지지 벽의 화재 저항성에 영향을 미치는 일반적인 매개변수와 요소를 식별합니다. 이 문서는 EN 1364-1에 따라 테스트된 비하중 지지 벽의 확장 적용 결과를 고려할 때 꼭 필요로 하는 요소들을 명확히 정의합니다. 이 기준의 강점 중 하나는 비하중 지지 벽의 화재 저항성에 대한 여러 매개변수의 변화가 미치는 영향을 설정하는 일반 규칙과 원칙을 제시한다는 점입니다. 이러한 규칙과 원칙은 여러 매개변수 간의 상호작용을 분석하여 화재 저항성 결과에 대한 깊이 있는 이해를 가능하게 합니다. 따라서, 건축 설계 및 안전 관리자들은 이를 통해 더욱 신뢰할 수 있는 화재 안전성을 검토할 수 있습니다. 추가적으로, 이 문서는 비하중 지지 벽의 확장 적용 범위를 설정하는 데 필요한 정보와 연구 보고서의 내용을 포함하여, 실제 적용 가능성을 객관적으로 평가할 수 있는 기초를 제공합니다. 즉, prEN 15254-1은 비하중 지지 벽의 화재 저항성을 보다 체계적이고 과학적으로 접근하는 데 큰 가치를 발휘합니다. 결론적으로, prEN 15254-1은 비하중 지지 벽에 대한 화재 안전성 기준을 설정하는 데 있어 필수적이며, 건축물의 안전성을 높이는 데 기여할 수 있는 중요한 문서입니다. 이 기준은 화재 저항성과 관련된 규제 및 지침을 준수하는 데 있어 중요한 참조자료 역할을 할 것입니다.

この標準文書「prEN 15254-1」は、非荷重壁の防火性能試験結果の拡張適用に関して非常に重要な要素を示しています。この文書は、EN 1364-1に基づいて試験された非荷重壁(パーティション)の防火性能に影響を与える一般的なパラメータおよび要因を特定しており、拡張適用結果を考慮する際に重要です。 この標準の強みは、非荷重壁に関する防火試験の結果を効果的に拡延させるための明確なガイドラインを提供している点です。具体的には、変数の一つまたは複数の変化が与える影響を評価し、その結果を基にした拡張適用の限界を定めるための一般的なルールと原則を明確化しています。このアプローチは、施設における防火の安全性を高度に保つために不可欠です。 さらに、報告書の内容を通じて、調査の結果を明確に文書化することが求められており、これにより業界全体での透明性と理解が促進されます。このように、「prEN 15254-1」は、非荷重壁の防火性能の拡張適用において必要不可欠な基準を提供しており、建築業界での安全基準の強化に貢献していると言えるでしょう。

Die Norm prEN 15254-1 befasst sich mit der erweiterten Anwendung von Ergebnissen aus Feuerwiderstandsprüfungen für nicht tragende Wände, insbesondere in Bezug auf die allgemeinen Parameter und Faktoren, die die Feuerwiderstandsfähigkeit dieser Wände beeinflussen. Diese Norm klärt, welche Aspekte bei der Berücksichtigung von erweiterten Anwendungsergebnissen von nicht tragenden Wänden, die gemäß EN 1364-1 getestet wurden, relevant sind. Ein wesentlicher Stärke dieser Norm liegt in der präzisen Definition der allgemeinen Regeln und Prinzipien, die notwendig sind, um die Auswirkungen von Variationen in einem oder mehreren Parametern zu bestimmen. Dies ist besonders relevant für Architekten und Ingenieure, die sicherstellen müssen, dass ihre Konstruktionen den erforderlichen Brandschutzstandards entsprechen. Die Norm fördert die Sicherheit im Bauwesen, indem sie eine systematische Herangehensweise für die Analyse und Anwendung von Testergebnissen bereitstellt. Darüber hinaus definiert prEN 15254-1 die Grenzen des Anwendungsbereichs und legt fest, welche Inhalte ein Bericht über die entsprechenden Studien enthalten sollte. Diese Klarstellungen tragen zur Transparenz und Nachvollziehbarkeit der Ergebnisse bei und helfen dabei, Missverständnisse zu vermeiden. Die Relevanz dieser Norm erstreckt sich über verschiedene Bereiche des Bauwesens, da sie sicherstellt, dass die beim Bau von nicht tragenden Wänden berücksichtigen Sicherheitsaspekte nicht vernachlässigt werden. In Anbetracht der wachsenden Anforderungen an Brandschutz in modernen Gebäuden ist prEN 15254-1 ein entscheidendes Dokument, das sowohl die Qualität als auch die Sicherheit von Bauprojekten verbessert.