Fire resistance tests

ISO 3008-3:2016 specifies the test method for determining the fire resistance of horizontally oriented door and shutter assemblies which may be exposed to a fire from the underside. It is applicable to all types of door and shutter assemblies installed in a horizontal orientation within floor or roof assemblies requiring fire-resistance ratings in buildings. The test method allows for the measurement of integrity and, if required, the measurement of radiation and thermal insulation. In addition, this test method includes measurement of the load-carrying ability of the test specimens subjected to a standard fire-resistance test.

Essais de résistance au feu

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Status
Published
Publication Date
01-May-2016
Current Stage
9020 - International Standard under periodical review
Start Date
15-Apr-2021
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INTERNATIONAL ISO
STANDARD 3008-3
First edition
2016-05-01
Fire resistance tests —
Part 3:
Door and shutter assemblies
horizontally oriented
Essais de résistance au feu —
Partie 3: Assemblages de portes et volets orientés horizontalement
Reference number
ISO 3008-3:2016(E)
ISO 2016
---------------------- Page: 1 ----------------------
ISO 3008-3:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 3008-3:2016(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Test equipment....................................................................................................................................................................................................... 2

5 Test conditions ....................................................................................................................................................................................................... 2

6 Test specimen .......................................................................................................................................................................................................... 2

6.1 Size of specimen ..................................................................................................................................................................................... 2

6.2 Design of specimen.............................................................................................................................................................................. 2

6.3 Verification ................................................................................................................................................................................................. 3

7 Installation of test specimen .................................................................................................................................................................... 3

7.1 General ........................................................................................................................................................................................................... 3

7.2 Supporting construction ................................................................................................................................................................. 3

7.3 Test construction ................................................................................................................................................................................... 3

7.3.1 Associated and supporting construction .................................................................................................... 3

7.3.2 Associated construction ............................................................................................................................................ 4

7.3.3 Supporting construction ........................................................................................................................................... 4

7.4 Gaps .................................................................................................................................................................................................................. 4

8 Conditioning .............................................................................................................................................................................................................. 4

8.1 Moisture content ................................................................................................................................................................................... 4

8.2 Mechanical .................................................................................................................................................................................................. 4

9 Application of instrumentation ............................................................................................................................................................ 4

9.1 Temperature measurements ....................................................................................................................................................... 4

9.1.1 Furnace temperature measuring instrument ......................................................................................... 4

9.1.2 Unexposed face thermocouples .......................................................................................................................... 5

9.2 Maximum temperature .................................................................................................................................................................... 6

9.3 Pressure measurements ................................................................................................................................................................. 6

9.4 Heat flux measurement ................................................................................................................................................................... 6

9.4.1 General...................................................................................................................................................................................... 6

9.4.2 Apparatus ............................................................................................................................................................................... 7

9.4.3 Procedure ............................................................................................................................................................................... 7

9.4.4 Measurement ...................................................................................................................................................................... 8

9.5 Loading .......................................................................................................................................................................................................... 8

9.6 Deflection ..................................................................................................................................................................................................... 8

10 Test procedure ........................................................................................................................................................................................................ 8

10.1 Gap measurements .............................................................................................................................................................................. 9

10.2 Test Measurements ............................................................................................................................................................................. 9

11 Performance criteria ........................................................................................................................................................................................ 9

11.1 Integrity ........................................................................................................................................................................................................ 9

11.2 Insulation ..................................................................................................................................................................................................... 9

11.3 Loadbearing capacity ........................................................................................................................................................................ 9

12 Test report ................................................................................................................................................................................................................10

13 Field of direct application of test results..................................................................................................................................10

13.1 General ........................................................................................................................................................................................................10

13.2 Timber constructions .....................................................................................................................................................................11

13.3 Steel constructions ...........................................................................................................................................................................11

13.4 Glazed constructions ......................................................................................................................................................................11

13.5 Fixings/hardware ..............................................................................................................................................................................11

© ISO 2016 – All rights reserved iii
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ISO 3008-3:2016(E)

Annex A (normative) Conditioning requirements for supporting constructions ...............................................13

Annex B (informative) Estimation of radiant heat flux using measured surface temperature

and Stefan-Boltzmann law .......................................................................................................................................................................14

iv © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 3008-3:2016(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT), see the following URL: Foreword — Supplementary information.

The committee responsible for this document is ISO/TC 92, Fire safety, Subcommittee SC 2, Fire

containment.

ISO 3008 consists of the following parts, under the general title, Fire resistance tests:

— Part 2: Lift landing door assemblies
— Part 3: Door and shutter assemblies horizontally oriented
© ISO 2016 – All rights reserved v
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ISO 3008-3:2016(E)
Introduction

This part of ISO 3008 specifies requirements for fire resistance testing which are unique to the elements

of building construction described as horizontally oriented doors and shutters. The requirements for

these doors and shutters are intended to be applied in conjunction with the appropriate detailed and

general requirements contained in ISO 834-1 and ISO 3008.
vi © ISO 2016 – All rights reserved
---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 3008-3:2016(E)
Fire resistance tests —
Part 3:
Door and shutter assemblies horizontally oriented

CAUTION — The attention of all persons concerned with managing and carrying out this

fire-resistance test is drawn to the fact that fire testing may be hazardous and that there is a

possibility that toxic and/or harmful smoke and gases may be evolved during the test. Mechanical

and operational hazards may also arise during the construction of test elements or structures,

their testing and disposal of test residues.

An assessment of all potential hazards and health risks shall be made by the laboratory 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.
1 Scope

This part of ISO 3008 specifies the test method for determining the fire resistance of horizontally

oriented door and shutter assemblies which may be exposed to a fire from the underside. It is applicable

to all types of door and shutter assemblies installed in a horizontal orientation within floor or roof

assemblies requiring fire-resistance ratings in buildings.

The test method allows for the measurement of integrity and, if required, the measurement of radiation

and thermal insulation. In addition, this test method includes measurement of the load-carrying ability

of the test specimens subjected to a standard fire-resistance test.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 834-1:1999, Fire-resistance tests — Elements of building construction — Part 1: General requirements

ISO 834-5, Fire-resistance tests — Elements of building construction — Part 5: Specific requirements for

loadbearing horizontal separating elements
ISO 3008, Fire-resistance tests — Door and shutter assemblies

ISO 3009, Fire-resistance tests — Elements of building construction — Glazed elements

ISO 13943, Fire safety — Vocabulary
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 834-1, ISO 3008, ISO 13943

and the following apply.
3.1
associated supporting construction

specific construction in which the door or shutter assembly is installed as intended for use in practice

and which is used to close off the furnace and provide the levels of restraint and thermal heat transfer

to be experienced in normal use
© ISO 2016 – All rights reserved 1
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ISO 3008-3:2016(E)
3.2
door assembly

combination of a door, a frame, hardware, closers, sealing materials and other accessories installed in a

horizontal plane, which together provide a specific degree of fire-resistance to a through opening in a

fire-resistance rated floor or roof
3.3
shutter assembly

complete assembly consisting of rolling, folded or sliding panels or slats including guides, rollers, tracks,

other accessories, operating mechanism and housings intended for installation in a horizontal plane

3.4
standard supporting construction

form of construction used to close off the furnace and to support the door assembly being evaluated

and has a quantifiable influence on both the thermal heat transfer between the construction and the

test specimen and provides known resistance to thermal distortion
3.5
door length

direction of the door panel, door assembly or shutter which has the greatest dimension

3.6
door width

direction of the door panel, door assembly or shutter which has the shortest dimension

4 Test equipment

4.1 The test equipment shall be as specified in ISO 834-1. The furnace used shall be related to the

orientation of the test specimen. For horizontal specimens, the floor furnace is applicable.

4.2 Measurement of heat flux from the unexposed surface of specimens shall be made as described in 9.4.

5 Test conditions

Test conditions require the application of the heating and pressure conditions of the standard test for a

loadbearing horizontal separating element as defined in ISO 834-1.
6 Test specimen
6.1 Size of specimen

The test specimen and all its components shall be full size. When this is restricted by the size of the

opening of the furnace (which is normally 3 m × 4 m), the door or shutter assembly shall be tested at

the maximum size possible and the fire resistance of the full-sized assembly shall be derived by an

extended application analysis. However, the minimum dimensions of the supporting construction shall

not be less than that prescribed in 7.3.1.
6.2 Design of specimen

6.2.1 The design of the test specimen and the choice of supporting construction shall take into account

the requirements of 7.3 if the widest field of direct application is to be achieved.

6.2.2 The test specimen shall be fully representative of the door or shutter assembly as intended for

use in practice, including any appropriate surface finishes and fittings which are an essential part of the

specimen and may influence its behaviour in a test construction.
2 © ISO 2016 – All rights reserved
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ISO 3008-3:2016(E)

6.2.3 If the test specimen is intended for use at an incline other than horizontal, the guidance for

inclined specimens in ISO 3009 shall be followed.
6.3 Verification

6.3.1 The sponsor shall provide a specification to a level of detail sufficient to allow the laboratory

to conduct a detailed examination of the specimen before the test and to agree on the accuracy of the

information supplied. ISO 834-1 provides detailed guidance on verification of the test specimen.

6.3.2 When the method of construction precludes a detailed survey of the specimen without having

to permanently damage it, or if it is considered that it will subsequently be impossible to evaluate

construction details from a post-test examination, then one of two options shall be exercised by the

laboratory, either:

— the laboratory oversees the manufacture of the door or shutter assembly(ies) that is to be the subject

of the test; or

— the sponsor, at the discretion of the laboratory, be requested to supply an additional assembly

or that part of the assembly which cannot be verified (e.g. a door leaf) in addition to the number

required for the testing. The laboratory shall then choose freely which of these shall be subjected to

the testing and which shall be used to verify the construction.
7 Installation of test specimen
7.1 General

7.1.1 The test specimen shall be installed in a manner as intended for use in practice, incorporating all

hardware and other items, which may influence the performance of the specimen.

7.1.2 The test specimen shall be mounted in a supporting construction, the field of application of which

covers the type (see 7.3.1) in which it is intended to be used. The design of the connection between the

test specimen and the supporting construction, including any fixings and materials used to make the

connection shall be as intended for use in practice and shall be regarded as part of the test specimen.

7.1.3 The whole area of the test specimen, together with at least the minimum dimensions of the

supporting construction required by 7.3.1 shall be exposed to the heating conditions.

7.2 Supporting construction

The fire resistance of any supporting construction shall not be determined from a test in conjunction

with a test specimen and shall be at least commensurate with that anticipated for the test specimen.

7.3 Test construction
7.3.1 Associated and supporting construction
The space between the specimen and the frame shall be filled with either
— associated construction, or
— supporting construction.

There shall be a minimum zone of supporting construction of 200 mm wide exposed within the furnace,

each side and over the top of the aperture into which the test specimen is to be fixed. The thickness

of the supporting construction may be increased outside of the 200-mm zone. The test construction

© ISO 2016 – All rights reserved 3
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ISO 3008-3:2016(E)

may incorporate more than one test specimen providing that there is minimum separation of 200 mm

between each specimen and between the specimens and the edge of the furnace.
7.3.2 Associated construction

When the test specimen is always installed in a specific, normally proprietary, form of construction,

that is permanently associated with its intended use in practice, then the specimen shall be installed in

a sample of this supporting construction.
7.3.3 Supporting construction

7.3.3.1 Where the test specimen is not permanently associated with a specific form of construction,

the area between the test specimen and the support frame shall be filled with a rigid or flexible standard

supporting construction as specified in ISO 834-5.

7.3.3.2 The choice of standard supporting construction shall reflect the range of intended use for

the door or shutter assembly. The rules governing the applicability of the chosen standard supporting

construction to other end use situations are given in Clause 13.
7.4 Gaps

7.4.1 The adjustment of the door leaf, leaves or shutter and gaps shall be within the tolerances of the

design values stipulated by the sponsor. These shall be representative of those used as intended for use

in practice so that appropriate clearances exist, e.g. between the fixed and moveable components.

7.4.2 In order to generate the widest field of direct application, the gaps shall be set between the

middle value and the maximum value within the range of gaps given by the sponsor.

8 Conditioning
8.1 Moisture content

The test specimen shall be conditioned in accordance with ISO 834-1. Requirements for conditioning of

supporting constructions are given in Annex A.
8.2 Mechanical

Some product standards exist for certification purposes that require mechanical testing before the start

of the fire test. Durability requirements are given in the relevant product standard. When mechanical

testing is required, the method used shall follow the requirements of the relevant product standard.

9 Application of instrumentation
9.1 Temperature measurements
9.1.1 Furnace temperature measuring instrument

Plate thermometers shall be provided in accordance with ISO 834-1. They shall be evenly distributed

over a horizontal plane, 100 mm from the nearest plane of the test construction. There shall be at least

one plate thermometer for every 1,5 m of the exposed surface area of the test construction, subject to

a minimum of four. The plate thermometer shall be oriented so that “side A” faces the back wall of the

furnace.
4 © ISO 2016 – All rights reserved
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ISO 3008-3:2016(E)
9.1.2 Unexposed face thermocouples

9.1.2.1 Where no evaluation against the insulation criteria is required of the door or shutter assembly,

or any part thereof, no temperature measurements are required.

9.1.2.2 Where compliance with the insulation criteria is required to be evaluated, thermocouples of

the type specified in ISO 834-1 shall be attached to the unexposed face for the purpose of obtaining the

average and maximum surface temperatures.

9.1.2.3 The temperature of the supporting construction in which the door or shutter assembly is

mounted is not required to be measured and therefore, no thermocouples are required.

9.1.2.4 No thermocouple shall be placed within 50 mm of any hardware.

9.1.2.5 Position five thermocouples (for single or double leaf doors), one at the centre of each specimen

leaf (single or multiple) and one at the centre of each quarter section. These shall not be located closer

than 50 mm to any joint, stiffener or through component, nor closer than 100 mm to the edge of the leaf.

9.1.2.6 For door or shutter assemblies which incorporate discrete areas of different thermal

insulation ≥0,1 m (e.g. glazed panels within a door leaf), extra thermocouples shall be evenly distributed

over the sum of the surface of those areas to determine the average temperature at a density of one

thermocouple per square metre or part thereof, subject to a minimum of two. The average insulation

performance of the sum of each area shall be determined.

9.1.2.7 When the total area of a single portion of the door or shutter assembly represents less than

0,1 m , it shall be disregarded for the purpose of ascertaining the average unexposed face temperature.

9.1.2.8 Temperature of door leaf or shutter.
Thermocouples shall be fixed to the face of each leaf or shutter as follows:
a) at mid-length, 100 mm in from the edges as specified below;
b) at mid-width, 100 mm from the edge as specified below;
c) 100 mm in from the edges as follows:

1) the inside edges of the clear opening for shutters or sliding doors installed on the exposed side

of the supporting construction;
2) the visible part of the edge of the door leaf for
i) hinged or pivoted doors opening away from the furnace,

ii) shutters or sliding doors installed on the unexposed side of the supporting construction.

If due to the narrow width of the leaf (leaves) or shutter(s) the thermocouples specified in b) and c) are

closer than 500 mm to each other, then those specified in b) are omitted.

If the leaf is <200 mm wide (e.g. as in a multi-leaf folding shutter), then the leaves will be treated

as if they were one leaf with respect to application of unexposed face thermocouples for evaluating

maximum temperature rise.

Additional thermocouples shall be fixed to other areas of the leaf or shutter, e.g. over any through

connection or position where the temperature might be expected to be higher than the mean for the

surface, subject to the limitations given in 9.1.2.9.
© ISO 2016 – All rights reserved 5
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ISO 3008-3:2016(E)
9.1.2.9 Temperature of other areas.

Thermocouples for determination of the maximum temperature rise of discrete panels of different

thermal insulation within the door leaf shall be applied as for door leaves. However, if there is more

than one other area of the same type then they shall be treated as one large area (as those for the

average temperature rise are). In such cases thermocouples shall avoid any framework adjacent to the

frame leaf.
9.1.2.10 Temperature of door frame.
Thermocouples shall be fixed at each of the following positions:
a) one at mid-length on each long dimension member;

b) one on each of the short dimension members of the frame at mid-width (100 mm away from the

door joint of a multi-leaf door on the primary leaf side);

c) one on each of the short dimension members of the frame 50 mm in from each corner of the leaf

opening.

At each of the positions, thermocouples shall be fixed as close as possible, i.e. with the centre of the disc

15 mm from the junction between the frame and the supporting construction. Irrespective of this, the

distance of these thermocouples from the inside edge of the frame shall not be greater than 100 mm.

For single leaf doors, if due to the narrow width of the opening, the thermocouples specified in b) and c)

are closer than 550 mm to each other, then that specified in b) is omitted.
9.2 Maximum temperature
9.2.1 The maximum temperat
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 3008-3
ISO/TC 92/SC 2 Secretariat: ANSI
Voting begins on: Voting terminates on:
2015-09-14 2015-12-14
Fire Resistance Test — Door and Shutter Assemblies —
Part 3:
Horizontally oriented
Essais de résistance au feu
ICS: 13.220.50; 91.060.50
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 3008-3:2015(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2015
---------------------- Page: 1 ----------------------
ISO/DIS 3008-3:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/WD 3008-3
Contents Page

Foreword ............................................................................................................................................................. v

Introduction ........................................................................................................................................................ vi

1 Scope ...................................................................................................................................................... 1

2 Normative References ........................................................................................................................... 1

3 Terms and definitions ........................................................................................................................... 1

4 Test equipment ...................................................................................................................................... 2

5 Test conditions ...................................................................................................................................... 2

6 Test specimen ........................................................................................................................................ 3

6.1 Size of specimen ................................................................................................................................... 3

6.2 Design of specimen ............................................................................................................................... 3

6.3 Verification ............................................................................................................................................. 3

7 Installation of test specimen ................................................................................................................ 3

7.1 General ................................................................................................................................................... 3

7.2 Supporting construction ....................................................................................................................... 4

7.3 Test construction .................................................................................................................................. 4

7.3.1 General ................................................................................................................................................... 4

7.4 Gaps ........................................................................................................................................................ 4

8 Conditioning .......................................................................................................................................... 4

8.1 Moisture content .................................................................................................................................... 4

8.2 Mechanical ............................................................................................................................................. 5

9 Application of instrumentation ............................................................................................................ 5

9.1 Temperature measurements ................................................................................................................ 5

9.1.1 Furnace temperature measuring instrument ...................................................................................... 5

9.1.2 Unexposed face thermocouples .......................................................................................................... 5

9.2 Maximum temperature .......................................................................................................................... 6

9.3 Pressure measurements ....................................................................................................................... 7

9.4 Heat flux measurement ......................................................................................................................... 7

9.4.1 General ................................................................................................................................................... 7

9.4.2 Apparatus ............................................................................................................................................... 7

9.4.3 Procedure ............................................................................................................................................... 8

9.4.4 Measurement ......................................................................................................................................... 8

9.5 Loading ................................................................................................................................................... 8

9.6 Deflection ............................................................................................................................................... 9

10 Test procedure ....................................................................................................................................... 9

10.1.1 Gap measurements ............................................................................................................................... 9

10.1.2 Test Measurements ............................................................................................................................... 9

11 Performance criteria ............................................................................................................................ 10

11.1 Integrity................................................................................................................................................. 10

11.2 Insulation .............................................................................................................................................. 10

11.3 Loadbearing capacity .......................................................................................................................... 10

12 Test report ............................................................................................................................................ 10

13 Field of direct application of test results .......................................................................................... 11

© ISO 2013 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/WD 3008-3

13.1 General ..................................................................................................................................................11

13.2 Timber constructions ..........................................................................................................................11

13.3 Steel constructions .............................................................................................................................12

13.4 Glazed constructions ..........................................................................................................................12

13.5 Fixings/Hardware .................................................................................................................................12

Annex A (normative) Conditioning requirements for supporting constructions .......................................13

A.1 General ..................................................................................................................................................13

A.2 Requirements .......................................................................................................................................13

Annex B (informative) Estimation of radiant heat flux using measured surface temperature and

Stefan-Boltzmann law .........................................................................................................................14

B.1 Introduction ..........................................................................................................................................14

B.2 Application ...........................................................................................................................................14

B.2.1 Specimen temperature measurement ...............................................................................................15

B.2.2 Specimen emissivity ...........................................................................................................................15

B.3 Example calculation ............................................................................................................................15

iv © ISO 2013 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/WD 3008-3
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical

committees. Each member body interested in a subject for which a technical committee has been established has

the right to be represented on that committee. International organizations, governmental and non-governmental,

in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical

Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 3008-3 was prepared by Technical Committee ISO/TC 92, Fire Standards, Subcommittee SC 2, Fire

Containment.

ISO 3008 consists of the following parts, under the general title Fire Resistance Test — Door and Shutter

Assemblies:
 Part 1: Door and Shutter Assemblies
 Part 2: Lift Landing Door Assemblies
 Part 3: Horizontally Oriented
© ISO 2013 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/WD 3008-3
Introduction

This document contains specific requirements for fire resistance testing which are unique to the elements of

building construction described as horizontally oriented doors and shutters. The requirements for these doors and

shutters are intended to be applied in appropriate conjunction with the detailed and general requirements

contained in the Standards ISO 834-1 and ISO 3008-1.
vi © ISO 2013 – All rights reserved
---------------------- Page: 6 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/WD 3008-3
Fire Resistance Test - — Door and Shutter Assemblies — Part 3:
Horizontally Oriented

CAUTION – The attention of all persons concerned with managinig and carrying out this fire-resistance test is

drawn to the fact that fire testing may be hazardous and that there is a possibility that toxic and/or harmful smoke

and gases may be evolved during the test. Mechanical and operatiponal hazards may also arise during the

construction of test elements or structures, their testing and disposal of test residues.

An assessment of all potential hazards and risks to health shall be made by the laboratory and safety precautioins

shall be identified and provided. Written safety instructions shall be issued. Appropriate training shall be given to

revelant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times.

1 Scope

This part of ISO 3008 specifies the method of test for determining the fire resistance of horizontally oriented door

and shutter assemlbies which may be exposed to a fire from the underside. The procedure applies to all types of

door and shutter assemblies installed in a horizontal orientation within floor or roof assemblies requiring fire-

resistance ratings in buildings.

The procedure allows for the measurement of integrity and, if required, the measurement of radiation and thermal

insulation. In addition, this method of test includes measurement of the load-carrying ability of the test specimens

subjected to a standard fire-resistance test.
2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references,

only the edition cited applies. For undated references, the latest edition of the referenced document (including any

amendments) applies.

ISO 834-1, Fire-resistance tests – Elements of building construction – Part 1: General requirements

ISO 834-5, Fire-resistance tests – Elements of building construction – Part 5: Specific requirements for

loadbearing horizontal separating elements
ISO 3008-1, Fire-resistance tests – Part 1 - Door and shutter assemblies

ISO 3009, Fire-resistance tests – Elements of building construction: Glazed Elements

ISO 13943, Fire safety – Vocabulary
3 Terms and definitions

For the purposes of this document, the following terms and definitions given in ISO 834-1, ISO 3008-1, ISO 13943

and the following apply
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3.1
Associated supporting construction

specific construction in which the door or shutter assembly is installed as intended for use in practice and which is

used to close off the furnace and provide the levels of restraint and thermal heat transfer to be experienced in

normal use
3.2
Door assembly

a combination of a door, a frame, hardware, closers, sealing materials and other accessories installed in a

horizontal plane, which together provide a specific degree of fire-resistance to a through opening in a fire-

resistance rated floor or roof.
3.3
Shutter assembly

a complete assembly consisting of rolling, folded or sliding panels or slats including guides, rollers, tracks, other

accessories, operating mechanism and housings intended for installation in a horizontal plane.

3.4
Standard supporting construction

form of construction used to close off the furnace and to support the door assembly being evaluated and has a

quantifiable influence on both the thermal heat transfer between the construction and the test specimen and

provides known resistance to thermal distortion.
3.5
Door length

the direction of the door panel, door assembly or shutter which has the greatest dimension.

3.6
Door width

the direction of the door panel, door assembly or shutter which has the shortest dimension.

4 Test equipment

4.1 The test equipment shall be as specified in ISO 834-1. The furnace used shall be related to the orientation

of the test specimen. For horizontal specimens, the floor furnace is applicable.

4.2 Measurement of heat flux from the unexposed surface of specimens shall be made as described in 9.4.

5 Test conditions

Test conditions require the application of the heating and pressure conditions of the standard test for a

loadbearing horizontal separating element as defined in ISO 834-1.
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6 Test specimen
6.1 Size of specimen

The test specimen and all its components shall be full size. When this is restricted by the size of the opening of

the furnace (which is normally 3 m x 4 m), the door or shutter assembly shall be tested at the maximum size

possible and the fire resistance of the full sized assembly shall be derived by an extended application analysis.

However, the minimum dimensions of supporting construction shall not be less than that prescribed in 7.3.1.1.

6.2 Design of specimen

6.2.1 The design of the test specimen and the choice of supporting construction shall take into account the

requirements of 7.3 if the widest field of direct application is to be achieved.

6.2.2 The test specimen shall be fully representative of the door or shutter assembly as intended for use in

practice, including any appropriate surface finishes and fittings which are an essential part of the specimen and

may influence its behaviour in a test construction.

6.2.3 If the test specimen is intended for use at an incline other than horizontal, the guidance for inclined

specimens in ISO 3009 shall be followed.
6.3 Verification

6.3.1 The sponsor shall provide a specification to a level of detail sufficient to allow the laboratory to conduct a

detailed examination of the specimen before the test and to agree on the accuracy of the information supplied.

ISO 834-1 provides detailed guidance on verification of the test specimen.

6.3.2 When the method of construction precludes a detailed survey of the specimen without having to

permanently damage it, or if it is considered that it will subsequently be impossible to evaluate construction details

from a post-test examination, then one of two options shall be exercised by the laboratory, either:

 The laboratory shall oversee the manufacture of the door or shutter assembly(ies) that is to be the subject of

the test; or

 The sponsor shall, at the discretion of the laboratory, be requested to supply an additional assembly or that

part of the assembly which cannot be verified (e.g. a door leaf) in addition to the number required for the

testing. The laboratory shall then choose freely which of these shall be subjected to the testing and which

shall be used to verify the construction.
7 Installation of test specimen
7.1 General

7.1.1 The test specimen shall be installed in a manner as intended for use in practice, incorporating all

hardware and other items, which may influence the performance of the specimen.

7.1.2 The test specimen shall be mounted in a supporting construction, the field of application of which covers

the type (see 7.3.1.1) in which it is intended to be used. The design of the connection between the test specimen

and the supporting construction, including any fixings and materials used to make the connection shall be as

intended for use in practice and shall be regarded as part of the test specimen.

7.1.3 The whole area of the test specimen, together with at least the minimum dimensions of the supporting

construction required by 7.3.1.1 shall be exposed to the heating conditions.
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7.2 Supporting construction

The fire resistance of any supporting construction shall not be determined from a test in conjunction with a test

specimen and shall be at least commensurate with that anticipated for the test specimen.

7.3 Test construction
7.3.1 General
7.3.1.1 Associated and supporting construction
The space between the specimen and the frame shall be filled with either
 associated construction or
 supporting construction.

There shall be a minimum zone of supporting construction of 200 mm wide exposed within the furnace, each side

and over the top of the aperture into which the test specimen is to be fixed. The thickness of the supporting

construction may be increased outside of the 200 mm zone. The test construction may incorporate more than

one test specimen providing that there is minimum separation of 200 mm between each specimen and between

the specimens and the edge of the furnace.
7.3.1.2 Associated construction

When the test specimen is always installed in a specific, normally proprietary, form of construction, that is

permanently associated with its intended use in practice, then the specimen shall be installed in a sample of this

supporting construction.
7.3.1.3 Supporting construction

7.3.1.3.1 Where the test specimen is not permanently associated with a specific form of construction, the area

between the test specimen and the support frame shall be filled with a rigid or flexible standard supporting

construction as specified in ISO 834-5.

7.3.1.3.2 The choice of standard supporting construction shall reflect the range of intended use for the door or

shutter assembly. The rules governing the applicability of the chosen standard supporting construction to other

end use situations are given in Clause 13.
7.4 Gaps

7.4.1 The adjustment of the door leaf, leaves or shutter and gaps shall be within the tolerances of the design

values stipulated by the sponsor. These shall be representative of those used as intended for use in practice so

that appropriate clearances exist, e.g. between the fixed and moveable components.

7.4.2 In order to generate the widest field of direct application, the gaps shall be set between the middle value

and the maximum value within the range of gaps given by the sponsor.
8 Conditioning
8.1 Moisture content

The test specimen shall be conditioned in accordance with ISO 834-1. Requirements for conditioning of

supporting constructions are given in Annex A.
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8.2 Mechanical

Some product standards exist for certification purposes that require mechanical testing before the start of the fire

test. Durability requirements are given in the relevant product standard. When mechanical testing is required, the

method used shall follow the requirements of the relevant product standard.
9 Application of instrumentation
9.1 Temperature measurements
9.1.1 Furnace temperature measuring instrument

Plate thermometers shall be provided in accordance with ISO 834-1. They shall be evenly distributed over a

horizontal plane 100 mm from the nearest plane of the test construction. There shall be at least one plate

thermometer for every 1,5 m of the exposed surface area of the test construction, subject to a minimum of four.

The plate thermometer shall be oriented so that ‘side A’ faces the back wall of the furnace.

9.1.2 Unexposed face thermocouples

9.1.2.1 Where no evaluation against the insulation criteria is required of the door or shutter assembly, or any

part thereof, no temperature measurements are required.

9.1.2.2 Where compliance with the insulation criteria is required to be evaluated, thermocouples of the type

specified in ISO 834-1 shall be attached to the unexposed face for the purpose of obtaining the average and

maximum surface temperatures.

9.1.2.3 The temperature of the supporting construction in which the door or shutter assembly is mounted is

not required to be measured and therefore, no thermocouples are required.
9.1.2.4 No thermocouple shall be placed within 50 mm of any hardware.

9.1.2.5 Position five thermocouples (for single or double leaf doors), one at the centre of each specimen

leaf(single or multiple) and one at the centre of each quarter section. These shall not be located closer than 50

mm to any joint, stiffener or through component, nor closer than 100 mm to the edge of the leaf.

9.1.2.6 For door or shutter assemblies which incorporate discrete areas of different thermal insulation  0,1 m

(e.g. glazed panels within a door leaf) extra thermocouples shall be evenly distributed over the sum of the surface

of those areas to determine the average temperature at a density of one thermocouple per square metre or part

thereof, subject to a minimum of two. The average insulation performance of the sum of each area shall be

determined.

9.1.2.7 When the total area of a single portion of the door or shutter assembly represents less than 0,1 m , it shall

be disregarded for the purpose of ascertaining the average unexposed face temperature.

9.1.2.8 Temperature of door leaf or shutter. Thermocouples shall be fixed to the face of each leaf or shutter as

follows:
1) at mid-length, 100 mm in from the edges as specified below,
2) at mid-width, 100 mm from the edge as specified below,
3) 100 mm in from the edges as follows:
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i) the inside edges of the clear opening for shutters or sliding doors installed on the exposed side of

the supporting construction, OR,
ii) the visible part of the edge of the door leaf for:
I) hinged or pivoted doors opening away from the furnace,

II) shutters or sliding doors installed on the unexposed side of the supporting construction.

NOTE 1 If due to the narrow width of the leaf (leaves) or shutter(s) the thermocouples specified in 2) and 3) are closer than

500 mm to each other, then those specified in 2) are omitted.

NOTE 2 If the leaf is < 200 mm wide (e.g. as in a multi-leaf folding shutter) then the leaves will be treated as if they were

one leaf with respect to application of unexposed face thermocouples for evaluating maximum temperature rise.

Additional thermocouples shall be fixed to other areas of the leaf or shutter, e.g. over any through connection or

position where the temperature might be expected to be higher than the mean for the surface, subject to the

limitations given in 9.1.2.9.

9.1.2.9 Temperature of other areas. Thermocouples for determination of the maximum temperature rise of

discrete panels of different thermal insulation within the door leaf shall be applied as for door leaves. However, if

there is more than one other area of the same type then they shall be treated as one large area (as those for the

average temperature rise are). In such cases thermocouples shall avoid any framework adjacent to the frame

leaf.
9.1.2.10 Temperature of door frame
Thermocouples shall be fixed at each of the following positions:
1) one at mid-height on each long dimension member,

2) one on each of the short dimension members of the frame at mid-width (100 mm away from the door

joint of a multi-leaf door on the primary leaf side),

3) one on each of the short dimension members of the frame 50 mm in from each corner of the leaf

opening.

At each of the positions, thermocouples shall be fixed as close as possible, i.e., with the centre of the disc 15 mm

from the junction between the frame and the supporting construction. Irrespective of this, the distance of these

thermocouples from the inside edge of the frame shall not be greater than 100 mm.

For single leaf doors, if due to the narrow width of the opening, the thermocouples specified in 2) and 3) are closer

than 550 mm to each other, then that specified in 2) is omitted.
9.2 Maximum temperature

9.2.1 The maximum temperature shall be determined from the five thermocouples fixed to determine the

average temperature rise (as given in 9.1.2.5), the roving thermocouple and from additional thermocouples fixed

as indicated in 9.2.2, 9.1.2.7, 9.1.2.8 and 9.1.2.9.

9.2.2 If the door or shutter assembly incorporates discrete areas of different thermal insulation  0,1 m (e.g.

glazed panels within a door or shutter area) which are evaluated separately with respect to average temperature

rise, then the evaluation of maximum unexposed face temperature of those areas shall also be undertaken

separately. This may require extra unexposed surface thermocouples to be applied as given in 9.1.2.6 and

9.1.2.7.
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9.3 Pressure measurements

9.3.1 The pressure in the furnace shall be measured by means of one of the designs of sensors shown in

Figure 4 of ISO 834-1.

9.3.2 The pressure measuring equipment shall be capable of operating within a range of – 20 Pa to + 30 Pa

with a tolerance of  2 Pa.

9.3.3 The pressure recording equipment shall be capable of recording data at 1-minute interval

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