SIST ENV 13381-7:2003
(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 Part of this European Prestandard 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 prENV 13381-1 or prENV 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 Prestandard 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
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 7: Brandschutzmaßnahmen für Holzbauteile
Dieser Teil dieser Europäischen Vornorm legt ein Prüfverfahren zur Bestimmung des Beitrages von Brandschutzsystemen zum Feuerwiderstand von tragenden Holzbauteilen fest.
Diese Brandschutzsysteme schließen Beplankungen, aufgesprühte Brandschutzmaterialien und Beschichtungen mit ein.
Das Verfahren ist auf alle Brandschutzsysteme zum Schutz von Holzbauteilen anwendbar. Diese können direkt, sowohl vollständig als auch teilweise, an dem Holzbauteil befestigt sein oder sie können einen Spalt zwischen dem Brandschutzsystem und dem Holzbauteil als festen Bestandteil der konstruktiven Gestaltung beinhalten.
Die Bewertung von Holzkonstruktionen, die durch horizontale oder vertikale Brandschutzmaßnahmen geschützt sind, werden in ENV 13381-1 bzw. ENV 13381-2 behandelt.
Dieses Prüfverfahren ist zur Bestimmung des Beitrages von Brandschutzsystemen zum Feuerwiderstand von tragenden Holzbauteilen und nichttragenden Teilen des Bauwerks einschließlich Decken, Dächer, Wände, 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 ihr Verfahren zur Beurteilung ist dafür ausgelegt, das direkte Anwenden der Ergebnisse auf einen Bereich von Dicken der benutzten Brandschutzmaßnahme zu gestatten.
Diese Europäische Vornorm beinhaltet das Brandprüfverfahren, das die auszuführende Prüfung festlegt, um die Leistungsfähigkeit des Brandschutzsystems festzustellen, den Temperaturanstieg über das Holzbauteil hinweg zu verzögern und dabei formstabil zu verbleiben und die Verbindung mit dem Holzbauteil aufrechtzuerhalten. Außerdem ergibt die Prüfung Messwerte zum Temperaturprofil über das Holzbauteil hinweg, wenn dieses der Einheits-Temperaturzeitkurve entsprechend dem hier festgelegten Verfahren ausgesetzt ist.
Méthodes d'essai pour déterminer le contribution a la résistance au feu des éléments de construction - Partie 7: Protection appliquée aux éléments en bois
Cette partie de l'ENV 13381 spécifie une méthode d'essai permettant de déterminer la contribution apportée par les systemes de protection contre le feu a la résistance au feu des éléments de construction en bois.
Ces systemes de protection contre le feu englobent les habillages, les matériaux de protection appliqués par projection et les revetements de protection contre le feu.
La méthode d'essai est applicable a tous les systemes de protection contre le feu utilisés pour protéger les éléments en bois. Ils peuvent etre fixés directement, totalement ou en partie, sur l'élément en bois et ils peuvent inclure un espace ou couche d'air entre le systeme de protection contre le feu et l'élément en bois, en tant que partie intégrante de la conception.
L'évaluation des constructions en bois protégées par des membranes horizontales ou verticales de protection contre le feu est traitée dans l'ENV 13381-1 et le EN 13381-2, respectivement.
La méthode d'essai est applicable pour déterminer la contribution apportée par les systemes de protection contre le feu a la résistance au feu des éléments porteurs de la structure en bois et des parties non porteuses de l'ouvrage, comprenant planchers, toits, murs, poutres et poteaux en bois. Elle est également applicable aux éléments de construction en bois comportant des matériaux d'isolation entre les élément en bois, par exemple entre les solives en bois dans les planchers.
La méthode d'essai et sa procédure d'évaluation sont conçues pour permettre l'application directe des résultats a une gamme d'épaisseurs du matériau de protection contre le feu.
La présente prénorme européenne contient :
L'essai au feu, qui spécifie les essais qui doivent etre effectués pour déterminer l'aptitude du systeme de protection contre le feu a retarder l'élévation de la température dans l'élément en bois, pour déterminer l'aptitude du systeme de protection contre le feu a rester cohérent et fixé sur l'élément en bois, et pour obtenir des données conc
Preskusne metode za ugotavljanje prispevka k požarni odpornosti konstrukcijskih elementov - 7. del: Zaščita lesenih elementov
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST ENV 13381-7:2003
01-januar-2003
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 le contribution a la résistance au feu des éléments de
construction - Partie 7: Protection appliquée aux éléments en bois
Ta slovenski standard je istoveten z: ENV 13381-7:2002
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.080.20 Lesene konstrukcije Timber structures
SIST ENV 13381-7:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST ENV 13381-7:2003
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SIST ENV 13381-7:2003
EUROPEAN PRESTANDARD
ENV 13381-7
PRÉNORME EUROPÉENNE
EUROPÄISCHE VORNORM
July 2002
ICS 13.220.50
English version
Test methods for determining the contribution to the fire
resistance of structural members - Part 7: Applied protection to
timber members
This European Prestandard (ENV) was approved by CEN on 1 March 2002 as a prospective standard for provisional application.
The period of validity of this ENV is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the ENV can be converted into a European Standard.
CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final
decision about the possible conversion of the ENV into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. ENV 13381-7:2002 E
worldwide for CEN national Members.
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SIST ENV 13381-7:2003
ENV 13381-7:2002 (E)
Contents
page
Foreword. 3
1 Scope . 4
2 Normative references. 5
3 Terms and definitions, symbols and units . 5
4 Test equipment . 7
5 Test conditions. 7
6 Test specimens. 8
7 Installation of the test construction. 12
8 Conditioning of the test construction. 12
9 Application of instrumentation. 13
10 Test procedure . 14
11 Test results. 15
12 Test report. 16
13 Assessment . 16
14 Report of the assessment . 18
15 Limits of applicability of the results of the assessment. 18
Annex A (normative) Test method to the smouldering fire or slow heating curve. 23
Annex B (informative) Guidelines for fire protection of timber structures according to
ENV 1995-1-2 - Loadbearing function. 26
Annex C (normative) Measurement of properties of fire protection materials . 29
Annex D (informative) Alternative construction for loaded beam test specimen . 32
Bibliography . 34
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SIST ENV 13381-7:2003
ENV 13381-7:2002 (E)
Foreword
This document ENV 13381-7:2002 has been prepared by Technical Committee CEN/TC127 "Fire safety in buildings", the
secretariat of which is held by BSI.
This document has been prepared under the mandate given to CEN/TC127 by the Commission and the European Free Trade
Association.
As there was little experience in carrying out these tests in Europe CEN/TC127 agreed that more experience should be built
up during a prestandardization period before agreeing text as European Standards. Consequently all parts are being prepared
as European Prestandards.
This European Prestandard 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 ENV 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 should be made and safety precautions should be identified and
provided. Written safety instructions should be issued. Appropriate training should be given to relevant personnel. Laboratory
personnel should ensure that they follow written safety instructions at all times.
The specific health and safety instructions contained within this prestandard should be followed.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany,
Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
3
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SIST ENV 13381-7:2003
ENV 13381-7:2002 (E)
1Scope
This Part of this European Prestandard 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 ENV
13381-1 or ENV 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 Prestandard 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
ENV 1995-1-2.
A description of the relationship of this test method and the assessment of the results obtained therefrom to
ENV 1995-1-2 and guidelines for the use of this test method in accordance with that standard are given in annex B.
This European Prestandard also contains the assessment which prescribes how the analysis of the test data should
be made and gives guidance to the procedures by which interpolation should 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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SIST ENV 13381-7:2003
ENV 13381-7:2002 (E)
2 Normative references
This European Prestandard 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 Prestandard
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.
ENV 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 Prestandard, 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
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
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ENV 13381-7:2002 (E)
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
300,unprot
an 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
mm/min Notional charring rate from ENV 1995-1-2 excluding the effect of roundings
at arrises.
mm/min Notional charring rate from ENV 1995-1-2 including the effect of roundings at
o
arrises.
´ mm/min Actual unprotected charring rate determined by testing.
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ENV 13381-7:2002 (E)
߆mm/min Actual protected charring rate determined by testing.
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 timber floors, walls, beams and columns, both floor and beam tests shall
be performed according to EN 1365-2 and EN 1365-3 respectively.
For a fire protection system to be applied only to timber floors and walls, then floor tests shall be performed
according to EN 1365-2.
For a fire protection system to be applied only to timber beams and columns, then beam tests shall be performed
according to EN 1365-3.
This test method is written in terms of this universal application to all constructions.
Wall or column tests only may be performed (according to EN 1365-1 or EN 1365-4 respectively) but the results
shall be restricted to that tested.
The EN 1365 test methods shall be slightly modified for the purposes of this test in order that the following
information may be obtained and monitored:
- the behaviour of the fire protection system and its stickability;
- the temperature of the timber behind the fire protection system and the temperature throughout the depth
of the timber.
5.1.1 The modified prEN 1365 large scale test
The EN 1365 test method(s) and test specimen(s) appropriate to the use of the fire protection material, specified by
the sponsor, shall be followed.
The temperature performance, stickability and general behaviour of the fire protection system, under load shall be
examined by incorporation into the test specimen an assembly or assemblies comprising particleboard laminate
together with additional instrumentation.
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ENV 13381-7:2002 (E)
5.1.2 The small scale test
Small scale tests shall be performed upon scaled down test assemblies from that given in 5.1.1.
Small scale tests shall be carried out on the same furnace as that used for the large scale tests in 5.1.1 and in
horizontal orientation, unless the result is to be restricted (see 5.1).
Such tests shall be used to give correlation between protected and unprotected timber structures and to provide
additional information.
5.2 Support and restraint conditions
Test specimens shall be supported according to the relevant large scale test.
5.3 Loading conditions
Loading shall be applied to full size test specimens according to the relevant large scale test.
The magnitude of the load shall be calculated, taking account of the differing strength and deformation properties
induced by included particle board laminates, to be that required to give the necessary deflection according to the
appropriate EN 1365 test.
The small scale test shall be performed unloaded.
6 Test specimens
6.1 Number
6.1.1 General
The appropriate test or tests to be carried out shall be as given in 5.1. For each EN 1365 test method to be used, if
the fire protection material is available in more than one thickness then following shall be carried out:
a) Test result to be applicable to floors and beams according to EN 1365-2 and EN 1365-3 (and therefore to
walls and columns according to 5.1).
- one large floor test at minimum thickness
- one large floor test at maximum thickness
- one large beam test at minimum thickness
- one large beam test at maximum thickness
- one small floor test at minimum thickness
- one small floor test at maximum thickness
- one unprotected small scale test.
b) Test result to be applicable only to floors according to EN 1365-2 (and therefore to walls according to 5.1).
- one large floor test at minimum thickness
- one large floor test at maximum thickness
- one small floor test at minimum thickness
- one small floor test at maximum thickness
- one unprotected small scale test.
c) Test result to be applicable only to beams according to EN 1365-3 (and therefore to columns according to
5.1).
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ENV 13381-7:2002 (E)
- one large beam test at minimum thickness
- one large beam test at maximum thickness
- one small floor test at minimum thickness
- one small floor test at maximum thickness
- one unprotected small scale test.
For very restricted application to walls or columns (see 5.1) the same numbers of tests shall be carried out with walls
or columns replacing floors or beams.
For each EN 1365 test method to be used, if the fire protection material is available in one thickness or if the sponsor
specifies limitation to one commercially appropriate thickness only, then the two tests at maximum and minimum
thickness shall be replaced by a single test at that thickness. The results of the assessment shall be restricted to that
tested.
Test constructions carrying particleboard test specimens shall be built according to 6.3 and installed according to
clause 7.
6.1.2 Fire protection system variations
Additional particleboard test specimens shall be tested to provide further test data for the fire protection system when
it is required to consider:
- different construction and fixing variables: One particleboard specimen per variable shall be tested in both
large and small scale tests at maximum fire protection thickness;
- multilayer fire protection systems: One particleboard specimen per variable shall be tested in both large and
small scale tests;
- other intermediate fire protection thicknesses between maximum and minimum thickness. One small scale
test per thickness variable to be considered;
- alternative and intermediate thicknesses of multiple layer combinations. One small scale test per
combination and combination thickness to be considered;
- the test to the smouldering curve (see annex A). One small scale test for maximum and minimum thickness
tested on the large scale.
Test constructions carrying particleboard test specimens shall be built according to 6.3
The additional particleboard specimens given in 6.1.2 may be incorporated into the tests defined in 6.1.1 or tested
separately, providing the requirements of clause 7 are satisfied.
6.2 Size
6.2.1 Large scale test specimen
For each EN 1365 test method to be carried out, as given in 5.1, the size of the large scale test construction to carry
the particleboard test specimen shall be that specified in that method, i.e.:
- Floors: the exposed dimensions of the floor shall be at least 4 000 mm length and 2 000 mm width according
to EN 1365-2.
- Beams: the exposed length of the beam shall be at least 4 000 mm according to EN 1365-3.
- Walls: the exposed dimensions of the wall shall be as specified in EN 1365-1.
- Columns: the exposed height of the column shall be as specified in EN 1365-4.
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ENV 13381-7:2002 (E)
6.2.2 Small scale test specimen
The size of the small floor test construction to carry the particleboard test specimen shall be such that its exposed
length is 2 000 mm and its exposed width 1 000 mm.
6.3 Construction
6.3.1 Construction of timber test specimens
The test constructions to carry the particleboard laminate test specimens shall be made according to the EN 1365
test(s) under consideration.
6.3.1.1 Particle board laminate test specimens
Loaded large floor - A particle board laminate, comprising 10 layers of 10 mm thick particleboard, of width equal
to the spacing between the floor joists and length equal to the exposed length of the floor, is rigidly fixed between
and to the joists such that the deflection applied to the floor is transferred to the particleboard. This fixing is made
from above by use of appropriate brackets or fixings. The lower face of the particleboard laminate shall be flush with
the lower face of the joists.
Thermocouples shall be inserted between the layers as defined in 9.3.
Depending upon the width of the floor, the spacing of the joists etc, more than one particleboard test specimen may
be incorporated into a test floor to permit more than one variable to be examined per furnace test, providing the
limitations of 6.1.2 and clause 7 are followed. Multiple specimens shall be symmetrically distributed.
Loaded beams - The beam is covered with particleboard laminate, comprising 5 layers of 10 mm thick
particleboard, applied round the beam on all exposed sides. The particleboard laminate is rigidly fixed to the beam
such that the deflection applied to the beam is transferred to the particleboard.
Thermocouples shall be inserted between the layers as defined in 9.3.
An alternative construction for loaded beam testing is given in annex D.
6.3.1.2 Small scale tests
Unloaded floor test specimens: shall comprise particleboard laminates made up from 10 layers of 10 mm thick
particleboard, adhesive laminated, size 2000 mm · 1000 mm. Thermocouples shall be inserted between the layers
as defined in 9.3.
6.3.2 Application of the fire protection materials to the timber test specimen
Fire protection systems comprising boards (or panels), for the fire protection of flat, two dimensional, timber
structures shall be arranged such that boards of the largest practical size are used and that at least one longitudinal
joint and one transverse joint, where applicable, are tested within the furnace.
Fire protection systems comprising boards (or panels), for the protection of beams and columns shall be arranged
such that boards of the largest practical size are used and that at least one longitudinal joint, one transverse joint and
one horizontal joint, where applicable, are tested within the furnace.
For multiple layer fire protection systems each layer shall be individually fixed and lateral joints staggered according
to ENV 1995-1-2.
The fire protection systems shall be applied to floor, beam and small scale test specimens as in practice.
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6.3.3 Insulating materials
Where the timber structure to be protected by the fire protection material or system is to be provided with additional
insulating materials, within, around or adjacent to the timber members therein, then these shall be incorporated into
the test assembly as used in practice.
6.4 Composition of components of test specimen
6.4.1 Timber
The timber used for manufacture of characteristic floors or beams shall be of strength classes C14 to C40 as defined
in EN 338. Other grades may be used but the limits of applicability of the results of the assessment may be restricted
according to 15.1.6.
6.4.2 Particle board laminate
3 .
Particle board laminate shall meet the requirements of EN 312 and be of density 700 kg/m ± 10 % Its properties
shall meet those specified in EN 312-4.
When tests are performed with and without the applied fire protection, the density of the different particleboard
laminates shall not differ by more than 10 % from the mean measured density of all laminates in all tests.
6.4.3 Fire protection system
The composition of the fire protection system shall be specified by the sponsor and include, at least, its expected
nominal density, thickness and moisture content. For confidentiality reasons the sponsor may not wish detailed
formulation or composition details to be reported in the test report. Such data shall, however, be provided and
maintained in confidence in laboratory files.
6.5 Properties of test materials
The actual material properties of test specimen component materials shall be determined, according to EN 1363-1
and using appropriate product test standards, on test materials or test samples conditioned as defined in clause 8.
The actual thickness, density and moisture content of the fire protection materials shall be measured and recorded
for each test specimen at the time of test, either directly upon the fire protection material or upon special test samples
taken. These shall be conditioned as defined in clause 8. The procedures appropriate to different types of material
are given in annex C.
The thickness of board or panel type fire protection systems should not deviate by more than 15 % of the mean value
over the whole of its surface. In this case, the mean value shall be used in the assessment of the results and the limits
of applicability of the assessment. If it deviates by more than 15 %, the maximum thickness recorded shall be used
in the assessment.
The thickness of sprayed or coated passive or reactive type fire protection systems should not deviate by more than
20 % of the mean value over the whole of its surface. In this case, the mean value shall be used in the assessment
of the results and the limits of applicability of the assessment. If it deviates by more than 20 %, the maximum
thickness recorded shall be used in the assessment.
The density of the fire protection material applied to the test specimens at maximum and minimum thickness shall
be recorded. The mean value of the density of the fire protection material at maximum and minimum thickness shall
be used in the assessment of the results of the test, unless the difference between these is greater than 15 %, in which
case the maximum density recorded shall be used.
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SIST ENV 13381-7:2003
ENV 13381-7:2002 (E)
6.6 Verification of the test spe
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