EN 1021-1:2006

SLOVENSKI STANDARD
01-marec-2006
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Furniture - Assessment of the ignitability of upholstered furniture - Part 1: Ignition source
smouldering cigarette
Möbel - Bewertung der Entzündbarkeit von Polstermöbeln - Teil 2: Eine einem
Streichholz vergleichbare Gasflamme als Zündquelle
Ameublement - Evaluation de l'allumabilité des meubles rembourrés - Partie 1 : Source
d'allumage : cigarette en combustion
Ta slovenski standard je istoveten z: EN 1021-1:2006
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
97.140 Pohištvo Furniture
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1021-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2006
ICS 13.220.40; 97.140 Supersedes EN 1021-1:1993
English Version
Furniture - Assessment of the ignitability of upholstered furniture
- Part 1: Ignition source smouldering cigarette
Ameublement - Evaluation de l'allumabilité des meubles Möbel - Bewertung der Entzündbarkeit von Polstermöbeln -
rembourrés - Partie 2 : Source d'allumage : flamme Teil 2: Eine einem Streichholz vergleichbare Gasflamme
équivalente à celle d'une allumette als Zündquelle
This European Standard was approved by CEN on 16 December 2005.
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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1021-1:2006: E
worldwide for CEN national Members.

Contents Page
Foreword. 3
Introduction . 4
1 Scope. 5
2 Terms and definitions . 5
3 Criteria of ignition. 5
4 Principle . 6
5 Health and safety of operators . 6
6 Apparatus. 7
7 Preparation and conditioning. 10
8 Test assembly. 10
9 Test procedure. 11
10 Test report. 14
Annex A (informative) Guidance notes for designers and specifiers . 16

Annex B (informative) Model report form. 18
Annex C (informative) Cleaning of a rig . 19
Annex D (normative) Water soak procedures . 20

Foreword
This European Standard (EN 1021-1:2006) has been prepared by Technical Committee CEN/TC 207
“Furniture”, the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by August 2006, and conflicting national standards shall be
withdrawn at the latest by August 2006.
This European Standard supersedes EN 1021-1:1993.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, 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.
Introduction
This European Standard is one of a series of standards concerned with the ignitability of upholstered
furniture using different ignition sources. The ignition source used in this European Standard is a
smouldering cigarette.
1 Scope
This European Standard specifies a test method to assess the ignitability of material combinations, such as
covers and fillings used in upholstered seating, when subjected to a smouldering cigarette as an ignition
source.
The test measures only the ignitability of a combination of materials used in upholstered seating and not
the ignitability of a particular finished item of furniture incorporating these materials. They give an indication
of, but cannot guarantee, the ignition behaviour of the finished item of furniture.
NOTE Test specimens prepared from materials taken from furniture that has been used may give different results
to the same materials before use.
2 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
2.1
progressive smouldering
exothermic oxidation, not accompanied by flaming, that is self-propagating, i.e. independent of the ignition
source. It may or may not be accompanied by incandescence
2.2
flaming
undergoing combustion in the gaseous phase with the emission of light
2.3 Cover
2.3.1
outer cover
outer layer of the upholstery
2.3.2
inner cover
thin layer of material used between the outer cover and the upholstery filling. Any inner cover greater than
nominally 2 mm thick is part of the filling for test purposes
NOTE The term “interliner” is no longer used because it is non-specific and has been applied to different
components within the composite.
2.4
filling
main upholstery material contained by the outer cover and (if used) the inner cover. It may consist of
several different materials including any inner cover nominally greater than 2 mm thick
3 Criteria of ignition
3.1 Progressive smouldering ignition
For the purposes of this European Standard, all the following types of behaviour are considered to be
progressive smouldering ignitions:
a) any test assembly that displays escalating combustion behaviour so that it is unsafe to continue the
test and active extinction is necessary;
b) any test assembly that smoulders until it is largely consumed within the test duration;
c) any test assembly that smoulders to the extremities of the specimen, viz. upper or lower margins,
either side or to its full thickness, within the duration of the test;
d) any test assembly that smoulders after one hour from the beginning of the test;
e) any test assembly that, on final examination (see 9.3), shows evidence of active smouldering.
NOTE In practice it has been found that there is usually a clear distinction between materials which may char
under the influence of the ignition source but which do not propagate further (non-progressive combustion) and those
where smouldering develops in extent and spreads (progressive combustion).
3.2 Flaming ignition
For the purposes of this European Standard, a flaming ignition is considered to be the occurrence of any
flames initiated by a smouldering source.
4 Principle
To subject an assembly of upholstery materials to a smouldering cigarette ignition source. The assembly is
arranged to represent in stylised form a junction between a seat and back (or seat and arm) such as might
occur in a typical chair. The ignitability of an assembly is determined by applying smokers materials such
as a cigarette. The test method measures the ignitability of the overall composite of materials, i.e. outer
cover, inner cover, filling etc., as constructed on the test rig. The results shall not be stated as being
applicable to the general behaviour of any individual component (see also Annex A).
5 Health and safety of operators
5.1 General
The test method specified in this European Standard presents a considerable hazard; suitable precautions
shall be taken.
5.2 Enclosure
For safety, the test should be conducted in a non-combustible fume cupboard. If such a cupboard is not
available, a test enclosure should be constructed (see 6.2) so that the operator is protected from the fumes.
5.3 Extinguishers
Adequate means of extinguishing the assembly should be provided bearing in mind that some
combinations may produce severe flaming during the test. A hand and/or fixed water spray which can be
directed over the burning area can be useful. Other means such as suitable fire extinguishers, fire blankets
and a bucket of water will assist.
In some cases smouldering may be difficult to extinguish completely and complete immersion in water may
be necessary.
6 Apparatus
6.1 Test rig
A suitable test rig is illustrated in Figures 1 and 2. It shall consist of two rectangular frames hinged together
and capable of being locked at right angles to each other.

Key
a) test rig
b) test rig with cover and fillings
c) vertical section
X detail of fitting cover to frame
1 filling
2 end plate of frame
3 cover
4 overlap 20 mm
5 clips
6 fold cover overlap under frame to touch the steel mesh supporting the filling and fasten with clips as
below
Figure 1 — Test rig assembly
Dimensions in millimetres
NOTE 1 Unless tolerances are indicated, dimensions are nominal.
NOTE 2 All parts are made of steel.
Key
1 end plate of frame 65 mm x 3 mm
2 edging section
3 expanded metal mesh size 28 mm x 6 mm (see 6.1)
4 side member of frame 25 mm x 3 mm
5 M10 bolt, nut and washers
6 Ø 10 hinge rod
Figure 2 — Test rig detail
The sides and hinge edges of the frames shall be made from nominal 25 mm x 3 mm steel flat bar and
shall securely hold mesh steel platforms set (6 ± 1) mm below the top edge of the frames. (Mesh size
should be such that an open mesh area of approximately 15 mm² to 150 mm exists).
The upper edge of the vertical frame and the front edge of the horizontal frame shall be steel end plates
450 mm x 65 mm x 3 mm to prevent the test filling moving during the assembly of the test specimen (see
Figures 1 and 2).
The internal width and height of the back frame shall be (450 ± 2) mm x (300 ± 2) mm and the width and
depth of the base frame (450 ± 2) mm x (150 ± 2) mm. A standard edging section may be used around the
mesh steel platform to give protection and greater rigidity.
The sides of the frame shall extend beyond the back of each frame to provide for the hinge holes and to
form the back legs. The hinge rod shall be of nominal 10 mm diameter steel, continuous across the back of
the rig and its axis (22,5 ± 0,5) mm beyond the back member of each frame.
The frames shall be lockable at right angles by a bolt or pin through each of the pairs of members forming
the back legs. The front legs may be welded across the front corners of the base frame. The height of the
legs shall be such as to leave a gap not less than 50 mm high between the base and frame and the
supporting surface.
For the tests the rigs shall be sited within the enclosure (see 6.2) and the testing shall be performed in a
basically draught-free environment permitting an adequate supply of air and removal of smoke from the
area of the apparatus.
6.2 Test enclosure
The test enclosure shall consist of either a room with a volume greater than 20 m (which contains
adequate oxygen for testing) or a smaller enclosure with a through flow of air. Inlet and extraction systems
providing an air flow rate of less than 0,2 m/s in the locality of the rig provide adequate oxygen without
disturbing the burning behaviour.
6.3 Clock
The clock shall be capable of measuring to at least 1 h with an accuracy of 1 s.
6.4 Ignition source smouldering cigarette
An un-tipped cylindrical cigarette complying with the following requirements shall be used:
 length: (68 ± 2) mm;
 diameter: (8 ± 0,5) mm;
 mass: (0
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