Fire-resistance tests -- Elements of building construction

ISO 834-9:2002 specifies test procedures for determining the fire resistance of non-loadbearing ceiling elements, which possess fire resistance independent of any building element above them, when exposed to heating from below the ceiling. It is applicable to self-supporting ceilings and to ceilings suspended from, or fixed directly to, a supporting construction. It is not applicable to ceilings used as a horizontal fire barrier for the protection of a loadbearing element above, in which case performance is assessed as an integral part of the complete assembly using ISO 834-5.

Essais de résistance au feu -- Éléments de construction

General Information

Status
Published
Publication Date
02-Feb-2003
Current Stage
6060 - International Standard published
Start Date
21-Oct-2002
Completion Date
03-Feb-2003
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ISO 834-9:2003 - Fire-resistance tests -- Elements of building construction
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INTERNATIONAL ISO
STANDARD 834-9
First edition
2003-02-01
Fire-resistance tests — Elements of
building construction —
Part 9:
Specific requirements for non-loadbearing
ceiling elements
Essais de résistance au feu — Éléments de construction —
Partie 9: Exigences spécifiques relatives aux éléments non porteurs de
plafond
Reference number
ISO 834-9:2003(E)
© ISO 2003
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ISO 834-9:2003(E)
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ii ISO 2003 – All rights reserved
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ISO 834-9:2003(E)
Contents Page

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

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

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

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

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

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

7 Application of instrumentation .......................................................................................................................... 6

8 Test procedure .................................................................................................................................................. 7

9 Performance criteria ......................................................................................................................................... 7

10 Validity of test ................................................................................................................................................. 7

11 Expression of results ...................................................................................................................................... 7

12 Test report ...................................................................................................................................................... 7

Annex

A Direct application of results............................................................................................................................... 8

Bibliography........................................................................................................................................................... 10

ISO 2003 – All rights reserved iii
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ISO 834-9:2003(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.

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 part of ISO 834 may be the subject of patent

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

International Standard ISO 834-9 was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee

SC 2, Fire containment.

ISO834 consists of the following parts, under the general title Fire-resistance tests — Elements of building

construction:
— Part 1: General requirements
— Part 3: Commentary on test method and test data application
— Part 4: Specific requirements for loadbearing vertical separating elements
— Part 5: Specific requirements for loadbearing horizontal separating elements
— Part 6: Specific requirements for beams
— Part 7: Specific requirements for columns
— Part 8: Specific requirements for non-loadbearing vertical separating elements
— Part 9: Specific requirements for non-loadbearing ceiling elements
Annex A of this part of ISO 834 is for information only.
iv ISO 2003 – All rights reserved
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ISO 834-9:2003(E)
Introduction

This part of ISO 834 contains specific requirements for fire resistance testing which are unique to the elements of

building construction described as non-loadbearing elements. The requirements for these non-loadbearing elements

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

ISO 834-1.
ISO 2003 – All rights reserved v
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INTERNATIONAL STANDARD ISO 834-9:2003(E)
Fire-resistance tests — Elements of building construction —
Part 9:
Specific requirements for non-loadbearing ceiling elements

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 the test elements or structures, their testing and 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.
1 Scope

This part of ISO 834 specifies test procedures for determining the fire resistance of non-loadbearing ceiling elements

which possess fire resistance independent of any building element above them, when exposed to heating from below

the ceiling. It is applicable to self-supporting ceilings and to ceilings suspended from, or fixed directly to, a supporting

construction.

The application of this test to other untested forms of construction is acceptable when the construction complies with

the direct field of application as given in this part of ISO 834 or when subjected to an extended application analysis

[1]

in accordance with ISO/TR12470 . Since ISO/TR12470 gives only general guidelines, specific extended

application analyses are to be performed only by persons expert in fire-resistant constructions.

This part of ISO 834 is not applicable to ceilings used as a horizontal fire barrier for the protection of a loadbearing

element above, in which case performance is assessed as an integral part of the complete assembly using

ISO 834-5.
2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of

this part of ISO 834. For dated references, subsequent amendments to, or revisions of, any of these publications do

not apply. However, parties to agreements based on this part of ISO 834 are encouraged to investigate the possibility

of applying the most recent editions of the normative documents indicated below. For undated references, the latest

edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid

International Standards.

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

ISO 13943, Fire safety — Vocabulary
3 Terms and definitions

For the purposes of this part of ISO 834, the terms, definitions, symbols and abbreviations given in ISO 834-1, the

terms and definitions given in ISO 13943 and the following apply.
ISO 2003 – All rights reserved 1
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ISO 834-9:2003(E)
3.1
ceiling

non-loadbearing element of building construction designed to provide horizontal fire separation

3.2
ceiling grid
substructure or suspension system that supports the ceiling membrane
3.3
expansion device

typically, device built into the ceiling grid that allows for expansion of the grid without causing significant deformation

of the ceiling
3.4
plenum

concealed space between ceiling and floor or roof, often, but not necessarily, designed to accommodate air

movement
3.5
self-supporting ceiling
ceiling with span from wall to wall, without additional suspension support
3.6
services

devices penetrating the ceiling (e.g. lighting and ventilation systems) not otherwise covered by a specific fire test

3.7
span
distance between centres of support
3.8
suspended ceiling

non-loadbearing horizontal protective membrane suspended from a loadbearing horizontal separating element and

its supporting framework, including hangers, services, insulating materials, and access and inspection panels

3.9
test specimen

full ceiling specimen submitted for test, including hangers, fittings, insulating materials and features such as lighting,

ventilation and access and inspection panels
4 Test equipment

The test equipment employed in the conduct of this test shall consist of a furnace, restraint and support frames and

instrumentation in accordance with ISO 834-1.
5 Test conditions

The heating and pressure conditions, furnace atmosphere and the restraint and boundary conditions shall be in

accordance with ISO 834-1, in addition to the requirements of this part of ISO 834.

2 ISO 2003 – All rights reserved
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ISO 834-9:2003(E)
6 Test specimen preparation
6.1 Specimen design
6.1.1 Details of construction

The test specimen shall be designed to characterize the details of the construction for which the desired rating is

sought, such as longitudinal and transverse jointing systems. Differently constituted forms of the same detail shall be

avoided.
6.1.2 Alignment

When the longitudinal and transverse directions of the ceiling are constructed differently, and the performance of the

test specimen varies depending upon the direction aligned with the longitudinal axis, the ceiling shall be designed to

represent the more onerous orientation by arrangement of the more critical components parallel to the longitudinal

axis. When the more onerous condition cannot be identified, two separate tests shall be performed, with the

components arranged both parallel and perpendicular to the longitudinal axis.
6.1.3 Services

When ceilings incorporate services such as lighting or air handling systems, which are an integral part of the design

of the ceiling, these shall be included in the test specimen or in an additional specimen and distributed as in practice.

6.2 Specimen size

The exposed dimensions of the test specimen shall be at least 4m×3m, unless the construction it represents is

designed to have exposed dimensions of less than 4m×3m, in which case the actual exposed dimensions shall be

tested. The span of the ceiling shall be in the direction of the larger dimension.

6.3 Number of test specimens

The number of test specimens shall be in accordance with this part of ISO 834 and ISO 834-1.

6.4 Specimen conditioning

At the time of the test the strength and moisture content of the test specimens shall approximate the conditions

expected in normal service. This shall include any infills and jointing materials. All components and materials of the

test specimen shall be conditioned in accordance with ISO 834-1. After equilibrium has been achieved the moisture

content or state of cure shall be determined and recorded. Any supporting con
...

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