oSIST prEN 13381-7:2008
(Main)Test methods for determining the contribution to the fire resistance of structural members - Part 7: Applied protection to timber members
Test methods for determining the contribution to the fire resistance of structural members - Part 7: Applied protection to timber members
This specifies the test methods for determining the contribution to the fire resistance of structural members for applied protection to timber members.
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 7: Brandschutzmaßnahmen für Holzbauteile
Dieser Teil dieser Europäischen Norm legt ein Prüfverfahren zur Bestimmung des Beitrages von
Brandschutzsystemen zum Feuerwiderstand von tragenden Holzbauteilen fest.
Derartige Brandschutzsysteme schließen Beplankungen, aufgesprühte Brandschutzmaterialien und Beschichtungen
ein.
Das Verfahren gilt für alle Brandschutzsysteme zum Schutz von Holzbauteilen. Diese können direkt, sowohl
vollständig als auch teilweise, an dem Holzbauteil befestigt sein, oder sie können einen Luftspalt zwischen
dem Brandschutzsystem und dem Holzbauteil als festen Bestandteil der konstruktiven Gestaltung beinhalten.
Die Bewertung von Holzkonstruktionen, die durch horizontale oder vertikale Brandschutzbekleidungen
geschützt sind, werden in prEN 13381-1 oder prEN 13381-2 behandelt.
Das Prüfverfahren ist zur Bestimmung des Beitrages von Brandschutzsystemen zum Feuerwiderstand von
tragenden Holzbauteilen und nichttragenden Teilen des Bauwerks einschließlich Decken, Dächern, Wänden,
Balken und Stützen geeignet. Es ist ebenso anwendbar auf tragende Holzbauteile, die Wärmedämmmaterial
zwischen den Holzbauteilen mit einschließen, z. B. zwischen den Holzbalken in Deckenaufbauten.
Das Prüfverfahren und sein Beurteilungsverfahren sind so ausgelegt, dass eine direkte Anwendung der
Ergebnisse möglich ist, um einen Bereich von Dicken des aufgebrachten Brandschutzmaterials abzudecken.
Diese Europäische Norm beinhaltet das Brandprüfverfahren, das die auszuführende Prüfung festlegt, um die
Leistungsfähigkeit des Brandschutzsystems festzustellen, den Temperaturanstieg über das gesamte
Holzbauteil zu verzögern und dabei formstabil zu bleiben und die Verbindung mit dem Holzbauteil aufrechtzuerhalten
sowie Messwerte zum Temperaturprofil über das gesamte Holzbauteil, wenn dieses der Einheits-
Temperaturzeitkurve entsprechend den hier festgelegten Verfahren ausgesetzt ist.
Méthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 7: Protection appliquée aux éléments en bois
Preskusne metode za ugotavljanje prispevka k požarni odpornosti konstrukcijskih elementov - 7. del: Zaščita lesenih elementov
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13381-7:2008
01-december-2008
3UHVNXVQHPHWRGH]DXJRWDYOMDQMHSULVSHYNDNSRåDUQLRGSRUQRVWLNRQVWUXNFLMVNLK
HOHPHQWRYGHO =DãþLWDOHVHQLKHOHPHQWRY
Test methods for determining the contribution to the fire resistance of structural members
- Part 7: Applied protection to timber members
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden
Bauteilen - Teil 7: Brandschutzmaßnahmen für Holzbauteile
Méthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de
construction - Partie 7: Protection appliquée aux éléments en bois
Ta slovenski standard je istoveten z: prEN 13381-7
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
oSIST prEN 13381-7:2008 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13381-7:2008
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oSIST prEN 13381-7:2008
EUROPEAN STANDARD
DRAFT
prEN 13381-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2008
ICS Will supersede ENV 13381-7:2002
English Version
Test methods for determining the contribution to the fire
resistance of structural members - Part 7: Applied protection to
timber members
Méthodes d'essai pour déterminer la contribution à la Prüfverfahren zur Bestimmung des Beitrages zum
résistance au feu des éléments de construction - Partie 7: Feuerwiderstand von tragenden Bauteilen - Teil 7:
Protection appliquée aux éléments en bois Brandschutzmaßnahmen für Holzbauteile
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 CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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.
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
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13381-7:2008: E
worldwide for CEN national Members.
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oSIST prEN 13381-7:2008
prEN 13381-7:2008 (E)
Contents Page
Foreword. 4
1 Scope. 5
2 Normative references. 6
3 Terms and definitions, symbols and units. 6
3.1 Terms and definitions. 6
3.2 Symbols and units . 7
4 Test equipment. 8
4.1 General. 8
4.2 Furnace. 8
4.3 Loading equipment. 8
5 Test conditions. 8
5.1 General. 8
5.1.1 The modified prEN 1365 large scale test. 9
5.1.2 The small scale test . 9
5.2 Support and restraint conditions . 9
5.3 Loading conditions. 9
6 Test specimens. 9
6.1 Number. 9
6.1.1 General. 9
6.1.2 Fire protection system variations . 10
6.2 Size. 11
6.2.1 1 Large scale test specimen . 11
6.2.2 Small scale test specimen . 11
6.3 Construction. 11
6.3.1 Construction of timber test specimens . 11
6.3.2 Application of the fire protection materials to the timber test specimen . 12
6.3.3 Insulating materials. 12
6.4 Composition of components of test specimen. 12
6.4.1 Timber. 12
6.4.2 Particle board laminate. 12
6.4.3 Fire protection system. 12
6.5 Properties of test materials. 13
6.6 Verification of the test specimen. 13
7 Installation of the test construction. 13
7.1 Large scale tests . 13
7.2 Small scale tests . 13
7.3 Installation patterns. 14
8 Conditioning of the test construction. 14
9 Application of instrumentation. 14
9.1 General. 14
9.2 Instrumentation for measurement of furnace temperature . 14
9.3 Instrumentation for measurement of test specimen temperature . 14
9.4 Instrumentation for measurement of pressure. 15
9.5 Instrumentation for measurement of deformation . 15
9.6 Instrumentation for measurement of applied load . 15
10 Test procedure. 15
10.1 General. 15
10.2 Furnace temperature and pressure. 15
10.3 Application and control of load . 16
10.4 Temperature of test specimen. 16
10.5 Deformation. 16
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prEN 13381-7:2008 (E)
10.6 Observations. 16
10.7 Termination of test. 16
11 Test results. 16
11.1 Acceptability of test results . 16
11.2 Presentation of test results. 16
12 Test report. 17
13 Assessment. 18
13.1 General. 18
13.2 Assessment of failure time and charring rates. 18
13.3 Preparation and use of basic data . 19
13.4 Stickability. 19
14 Report of the assessment . 19
15 Limits of applicability of the results of the assessment. 20
15.1 Small and large scale testing in accordance with this test method . 20
15.1.1 Thickness of fire protection material. 20
15.1.2 Multiple layers. 20
15.1.3 Panel or board size . 20
15.1.4 Orientation of test . 21
15.1.5 Fixing systems. 21
15.1.6 Grade of timber . 21
15.1.7 Timber widths or depths . 21
15.1.8 Insulation materials. 21
15.1.9 Fire resistance times . 21
15.1.10 Fixtures and fittings. 21
15.2 Large scale testing in accordance with this test method. 21
15.2.1 Walls and floors - type of construction . 21
15.2.2 Beams and columns - type of construction . 22
Annex A (normative) Test method to the smouldering fire or slow heating curve . 25
A.1 Introduction. 25
A.2 Test equipment. 25
A.3 Test conditions. 25
A.4 Test specimens. 25
A.5 Installation of the test specimens . 25
A.6 Conditioning of the test specimens . 25
A.7 Application of instrumentation. 26
A.8 Test procedure. 26
A.9 Test results. 26
A.10 Evaluation of the results . 26
Annex B (informative) Guidelines for fire protection of timber structures according to
EN 1995-1-2 – Loadbearing function. 28
Annex C (normative) Measurement of properties of fire protection materials . 31
C.1 Introduction. 31
C.2 Thickness of fire protection materials. 31
C.3 Density of applied fire protection materials. 32
C.4 Moisture content of applied fire protection materials. 33
Annex D (informative) Alternative construction for loaded beam test specimen. 34
D.1 General. 34
D.2 Alternative beam construction . 34
D.3 Number of test specimens . 34
D.4 Application of instrumentation: measurement of test specimen temperature. 35
D.5 Preparation and use of data. 35
D.6 Advantages of the alternative beam construction . 35
Bibliography . 36
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oSIST prEN 13381-7:2008
prEN 13381-7:2008 (E)
Foreword
This document (prEN 13381-7:2008) 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 will supersede ENV 13381-7:2002.
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 89/106/EEC.
This European Standard is one of a series of standards for evaluating the contribution to the fire
resistance of structural members by applied fire protection materials. Other parts of this standard are:
Part 1: Horizontal protective membranes.
Part 2: Vertical protective membranes.
Part 3: Applied protection to concrete members.
Part 4: Applied protection to steel members.
Part 5: Applied protection to concrete/profiled sheet steel composite members.
Part 6: Applied protection to concrete filled hollow steel columns.
Annexes A and C are normative. Annexes B and D are informative.
Caution
The attention of all persons concerned with managing and carrying out this fire resistance test, is
drawn to fact that fire testing can be hazardous and that there is a possibility that toxic and/or harmful
smoke and gases can be evolved during the test. Mechanical and operational hazards can also arise
during the construction of test elements or structures, their testing and the disposal of test residues.
An assessment of all potential hazards and risks to health shall be made and safety precautions shall
be identified and provided. Written safety instructions shall be issued. Appropriate training shall be
given to relevant personnel. Laboratory personnel shall ensure that they follow written safety
instructions at all times.
The specific health and safety instructions contained within this Standard shall be followed.
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oSIST prEN 13381-7:2008
prEN 13381-7:2008 (E)
1 Scope
This Part of this European Standard specifies a test method to be followed for determining the
contribution of fire protection systems to the fire resistance of structural timber members.
Such fire protection systems include claddings, sprayed fire protection and coatings.
The method is applicable to all fire protection systems used for the protection of timber members.
These can be fixed directly, totally or in part, to the timber member and can include an air gap
between the fire protection system and the timber member, as an integral part of its design.
Evaluation of timber constructions protected by horizontal or vertical protective membranes are the
subject of prEN 13381-1 or prEN 13381-2 respectively.
The test method is applicable to the determination of the contribution of fire protection systems to the
fire resistance of loadbearing timber structural members and non-loadbearing parts of the works,
including floors, roofs, walls, beams and columns. It is also applicable to timber structural members
incorporating insulating materials between the timber members, e.g. between timber joists in floor
constructions.
The test method and its assessment procedure is designed to permit direct application of the results
to cover a range of thicknesses of the applied fire protection material.
This European Standard contains the fire test which specifies the test to be carried out to determine
the ability of the fire protection system to delay the temperature rise throughout the timber member, to
determine the ability of the fire protection system to remain coherent and fixed to the timber member
and to provide data of the temperature profile throughout the timber test member, when exposed to
the standard temperature/time curve according to the procedures defined herein.
In special circumstances, where specified in national building regulations, there can be a need to
subject reactive protection material to a smouldering curve. The test for this and the special
circumstances for its use are detailed in Annex A.
The fire test methodology makes provision for the collection and presentation of data which can be
used as direct input to the calculation of fire resistance of timber members in accordance with the
procedures given in EN 1995-1-2.
A description of the relationship of this test method and the assessment of the results obtained
therefrom to EN 1995-1-2 and guidelines for the use of this test method in accordance with that
standard are given in Annex B.
This European Standard also contains the assessment which prescribes how the analysis of the test
data shall be made and gives guidance to the procedures by which interpolation shall be undertaken.
The limits of applicability of the results of the assessment arising from the fire test are defined,
together with permitted direct application of the results to different timber constructions over the range
of thicknesses of the applied fire protection system tested.
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prEN 13381-7:2008 (E)
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publica-
tions. 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 1365-1, Fire resistance tests for loadbearing elements – Part 1: Walls
EN 1365-2, Fire resistance tests for loadbearing elements – Part 2: Floors and roofs
EN 1365-3, Fire resistance tests for loadbearing elements – Part 3: Beams
EN 1365-4, Fire resistance tests for loadbearing elements – Part 4: Columns
EN 1995-1-2, Eurocode 5: Design of timber structures – Part 1-2: General rules – Structural fire
design
EN 338, Structural timber – Strength classes
EN 312, Particleboards – Specifications
ISO 8421-2, Fire protection – Vocabulary – Part 2: Structural fire protection
ISO 13943, Fire safety – Vocabulary (ISO 13943:1999)
3 Terms and definitions, symbols and units
3.1 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 1363-1,
EN ISO 13943 and ISO 8421-2, together with the following, apply.
3.1.1
timber structural member
element of building construction which may be loadbearing or non-loadbearing and which is mainly
constructed from solid timber and/or other wood based products
3.1.2
fire protection material
material or combination of materials applied to the surface of a timber structural member for the
purpose of increasing its fire resistance
3.1.3
passive fire protection materials
materials which do not change their physical form upon heating, provide fire protection by virtue of
their physical or thermal properties. They may include materials containing water which, on heating, is
removed to produce cooling effects
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prEN 13381-7:2008 (E)
3.1.4
reactive fire protection materials
materials which are specifically formulated to provide a chemical reaction upon heating such that their
physical form changes and in so doing provide fire protection by thermal insulative and cooling effects
3.1.5
fire protection system
fire protection material together with a prescribed method of attachment to a timber structural
member. The fire protection system may include multiple layers of materials and multiple
combinations of materials
3.1.6
fire protection
protection afforded to the timber member by the fire protection system such that the rise of
temperature of the timber and fixings is limited or delayed throughout the period of exposure to fire
3.1.7
test specimen
complete assembly of the timber test member plus the fire protection system under test. Within this
test method, several timber beams representative of timber in various constructional environments in
a structural building member, may be combined into a single test specimen
3.1.8
stickability
ability of a fire protection material to remain sufficiently coherent and in position for a well defined
range of deformations, and furnace and test specimen surface temperatures, such that its ability to
provide fire protection is not significantly impaired
3.1.9
charring depth
distance from the original surface of the timber member to the char line. The char line is the border-
line between char layer and the residual cross section
3.2 Symbols and units
Symbol Unit Designation.
t min Time.
t min The failure time of the fire protection system, i.e. the time when the temperature
pr
on the surface of the timber test member (interface between timber and fire
protection or air gap beneath the fire protection) reaches 300 °C.
t min Time at which the temperature indicated by a thermocouple placed at the
300,prot
interface between the timber test member and the fire protection system, or at a
specified point within a protected timber test member, reaches 300 °C.
t min Time at which the temperature indicated by a thermocouple on the surface of an
300,unprot
unprotected timber test member, or at a specified point within an unprotected
timber test member, reaches 300 °C.
t
min Time of termination of test.
test
d mm Thickness of the fire protection system. In the case of two or more layers of fire
p
protection material d is the sum of the thicknesses.
p
d mm Charring depth.
char
β mm/min Notional charring rate from EN 1995-1-2 excluding the effect of roundings at
arrises.
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prEN 13381-7:2008 (E)
β mm/min Notional charring rate from EN 1995-1-2 including the effect of roundings at
o
arrises.
β´ mm/min Actual unprotected charring rate determined by testing.
mm/min Actual protected charring rate determined by testing.
ß″
4 Test equipment
4.1 General
The furnace and test equipment shall be as specified in EN 1363-1.
4.2 Furnace
The furnace shall be designed to permit the dimensions of the test specimen to be exposed to heating
to be as specified in 6.2 and its installation to be as specified in Clause 7.
4.3 Loading equipment
Loading equipment shall conform to that specified in EN 1363-1. The loading system shall permit
loading of the magnitude defined in 5.3 to be applied.
5 Test conditions
5.1 General
The tests shall be carried out as described in EN 1363-1 unless otherwise stated.
For a fire protection system to be applied to timbe
...
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