prEN 13381-7

SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
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.

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
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

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.

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.
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
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.
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 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.
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).
 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 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.
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 EN 1995-1-2.
The fire protection systems shall be applied to floor, beam and small scale test specimens as in
practice.
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 shall 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 shall 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.
6.6 Verification of the test specimen
An examination and verification of the test specimen for conformity to specification shall be carried out
as defined in EN 1363-1.
The properties of the materials used in the preparation of the test specimen shall be measured using
special samples, where necessary, as defined in 6.5 using the methods defined in Annex C.
The sponsor shall verify that the fire protection material has been applied correctly and in the case of
sprayed or coating materials ensure, by methods appropriate to the material, that it is of the design
composition and specification.
7 Installation of the test construction
7.1 Large scale tests
Loaded floors, carrying particleboard test specimen(s), protected with the fire protection system, shall
be installed onto the furnace according to EN 1365-2.
Loaded beams, covered with particleboard laminate, protected with the fire protection system, shall be
installed onto the furnace according to EN 1365-3.
7.2 Small scale tests
Small scale test specimens shall be installed across the furnace aperture, in horizontal mode, in an
appropriate test frame. The furnace/test assembly interface shall be sealed with non-combustible
packing.
Shall the ends of the test specimen be within the furnace these shall be blanked off to provide a level
of fire protection equal to or greater than that given to the timber by the fire protection material.
7.3 Installation patterns
Large scale tests and/or small scale tests may be tested together on a furnace providing:
 the thickness of applied fire protection is the same (either as single or multiple layer);
 separate specimen suppor
...