SIST EN 14434:2005

SLOVENSKI STANDARD
SIST EN 14434:2005
01-junij-2005
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Writing boards for educational institutions - Ergonomic, technical and safety
requirements and their test methods
Wandtafeln für Bildungseinrichtungen - Ergonomische, technische und
sicherheitstechnische Anforderungen und Prüfverfahren
Tableaux pour établissements d'enseignement - Exigences ergonomiques, techniques et
de sécurité et méthodes d'essai correspondantes
Ta slovenski standard je istoveten z: EN 14434:2004
ICS:
03.180 Vzgoja in izobraževanje Education
13.180 Ergonomija Ergonomics
97.140 Pohištvo Furniture
SIST EN 14434:2005 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 14434:2005

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SIST EN 14434:2005
EUROPEAN STANDARD
EN 14434
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 03.180; 13.180; 97.140
English version
Writing boards for educational institutions - Ergonomic, technical
and safety requirements and their test methods
Tableaux pour établissements d'enseignement - Exigences Wandtafeln für Bildungseinrichtungen - Ergonomische,
ergonomiques, techniques et de sécurité et méthodes technische und sicherheitstechnische Anforderungen und
d'essai correspondantes Prüfverfahren
This European Standard was approved by CEN on 15 November 2004.
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, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14434:2004: E
worldwide for CEN national Members.

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SIST EN 14434:2005
EN 14434:2004 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 General test conditions.6
5 Test equipment .7
6 General safety requirements .7
7 Surface tests and requirements for whiteboards.8
8 Surface tests and requirements for chalkboards.11
9 Structural tests and requirements .15
10 Ergonomic requirements .19
11 Test report .20
12 Installation instructions .20
13 Product information.20
Annex A (normative) Assessment scale for the ability to write - Five levels chalk scale.22
Annex B (informative) Terminology.24

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SIST EN 14434:2005
EN 14434:2004 (E)
Foreword
This document (EN 14434:2004) 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 June 2005, and conflicting national standards shall be withdrawn at
the latest by June 2005.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
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SIST EN 14434:2005
EN 14434:2004 (E)

1 Scope
This document specifies ergonomic, technical and safety requirements for wall mounted and free-standing
writing boards for use in rooms for educational and training purposes, e.g. classrooms, lecture theatres for
schools, universities etc.
It is intended to prevent serious injury through normal functional use, as well as misuse that might reasonably
be expected to occur.
This document applies to units after installation. Safety depending on the structure of the building is not
included, e.g. the strength of wall mounted boards includes only the board and its parts. The wall and the wall
attachment are not included.
Requirements concerning electrical safety are not included.
Annex A (normative) includes an assessment scale for the ability to write and erase.
Annex B (informative) includes terminology for display writing boards.
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.
EN 438-2:1991, Decorative high-pressure laminates (HPL) – Sheets based on thermosetting resins – Part 2:
Determination of properties (ISO 4586-2:1988, modified)
EN 1023-3, Office furniture – Screens – Part 3: Test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
board attachment
element by which the board is attached to the rail (see Annex B, Figure B.20)
3.2
chalkboard
writing board with a writing surface to be used for chalk
3.3
fixed board
board or assembly of boards fixed by various means (see Annex B, Figures B.2, B.3 and B.4)
3.4
fixing element
joint by which the rail is mounted to the wall
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SIST EN 14434:2005
EN 14434:2004 (E)
3.5
flip chart
one-sided board placed or fixed on an easel or a rail with the facility to attach a paper pad (see Annex B,
Figure B.16)
3.6
horizontally sliding board
board with or without wing with only horizontal board movements in the same plane, manually or power
operated
3.7
map holder
permanent system at the upper part of the board allowing maps, charts or other documents to be temporarily
hung in place (see Annex B, Figure 18)
3.8
mobile board
board or assembly of boards, which may be moved on the floor from one place to another (see Annex B,
Figures B.5, B.6 and B.7)
3.9
overall frame
outer frame or structure allowing movement of a sliding board
3.10
pivoting board
two-sided board articulated on its horizontal or vertical axis and standing on braced feet, with or without
castors (see Annex B, Figures B.5, B.6)
3.11
rail based board/system
board hanging and/or sliding on horizontally wall mounted rails (see Annex B, Figure B.20)
3.12
roller board (revolving surface board)
assembly with top and bottom horizontal rollers allowing a continuous loop of flexible writing surface to be
revolved between rollers. These boards may be wall mounted or mobile (see Annex B, Figure B.17)
3.13
sash board
assembly of one or two-sided boards sliding vertically, independent of each other and individually counter-
balanced (see Annex B, Figure B.10)
3.14
sliding board
board with horizontal and/or vertical movements in the same plane, manually or power operated. It does not
include a railed-based system (see Annex B, Figures B.9, B.10, B.11, B.12 and B.13)
3.15
tilting board
manually or power-operated inclinable one-sided board articulated on its lower horizontal edge, e.g. screens
for overhead projectors (see Annex B,Figure B.11)
3.16
to and fro system
assembly of one- or two-sided boards sliding vertically, counter-balancing each other in all positions (see
Annex B, Figure B.9).
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SIST EN 14434:2005
EN 14434:2004 (E)
3.17
transmission element
any means to transmit a movement such as to and fro, or sash
3.18
tray
ledge placed at the lower part of the board upon which writing implements may be placed (see Annex B,
Figure B.18)
3.19
vertically and horizontally sliding board
board with or without wing with vertical and horizontal movements in the same plane, manually or power
operated
3.20
vertically sliding board
board with or without wing, with only vertical movements in the same plane, manually or power operated (see
Annex B, Figures B.9, B.10, B.11, B.12 and B.13)
3.21
whiteboard
writing board with a writing surface of a light colour to be used for dry marker pen
3.22
wall mounted board
one-sided board fixed to the wall (see Annex B, Figure B.1)
3.23
wing
two-sided board mounted on a vertically hinged system
3.24
winged board
assembly comprising a one-sided board and one or more wings. Double-board, triple-board and book-leaf are
examples of winged boards (see Annex B, Figures B.2, B.3 and B.4)
3.25
writing board
board with one or more writing surfaces for the display of information
3.26
writing surface
surface for the display of information by means of writing and/or by other methods. The surface is erasable
and re-usable
4 General test conditions
4.1 Preliminary preparation
Before any of the tests are commenced, the item shall be old enough to ensure that it has developed its full
strength. In the case of surfaces and glued joints in timber and the like, at least four weeks in normal indoor
conditions shall have elapsed between manufacturing and testing.
All boards shall be tested as delivered. If of knock-down type, it shall be assembled according to the
instructions supplied with the board. If the board can be assembled or combined in different ways, the most
adverse combination shall be used for each test. The same is valid for units that can be combined with other
units or components.
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SIST EN 14434:2005
EN 14434:2004 (E)
The tests shall be carried out in indoor conditions, but if during a test the temperature is outside the range of
15 °C to 25 °C, the maximum and/or minimum temperature shall be recorded in the test report.
Tighten any assembly fittings before testing. Further retightening shall not take place unless it is specifically
required by the manufacturer.
4.2 Tolerances
Unless otherwise stated the following tolerances apply:
Masses: ± 0,5 % of the nominal mass;
Dimensions: ± 1,0 mm of the nominal dimension;
Angles: ± 2° of the nominal angle;
Forces: ± 5 % of the nominal force.
4.3 Test installation
For the structural tests in Clause 9, the board shall be installed according to the manufacturer’s instructions.
Wall mounted boards shall be mounted to a structure sufficiently strong and stiff to eliminate the possibility of
it affecting the results of the tests. The mounting of the structure shall be representative of the service
installation.
Where the manner of mounting is ambiguously defined, the manner of mounting shall be recorded in the test
report.
5 Test equipment
5.1 Floor surface, rigid, horizontal and flat.
5.2 Wall surface, rigid, vertical and flat.
5.3 Chalk, two types of white chalk:
a) made from calcium carbonate;
b) made from calcium sulphate.
5.4 Pen, red alcohol base, acrylic tipped dry marker.
6 General safety requirements
6.1 All boards
No part of the board shall constitute a risk of injury to the user during normal use. The board shall be such that
damages to clothing and soiling are avoided during normal use.
All accessible edges and corners shall be rounded or chamfered and shall have no burrs. Hollow ends shall
be capped or otherwise closed.
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SIST EN 14434:2005
EN 14434:2004 (E)
In order to avoid shearing and pinching, the distance between parts moving relative to each other shall have
safety distances, which shall always be less than 8 mm or more than 25 mm in any position during movement.
a) Shear and pinching points, which are held apart by rubber or plastic buffers are exempt from this
requirement provided that the gap produced by the buffer is at least 25 mm.
b) For winged boards, the gap between two parts of the board is exempt from this requirement.
c) For vertically sliding boards (sash boards, to and fro boards), where there is a risk of entrapment, the
requirement is applicable except between the boards. The gap between the boards shall be at least
25 mm.
NOTE For c) gaps of 50 mm or more are recommended.
For vertically sliding boards (sash boards, to and fro boards), there shall be at least 120 mm from the floor to
the board if no front protection is provided.
It shall not be possible to remove detachable parts inclusive end caps without the use of a tool.
No part attached to the rail system shall be detached unintentionally.
Counterweight mechanisms shall not be accessible during normal use.
It shall not be possible to operate controls inadvertently or accidentally.
If castors are provided as means of mobility, at least half of them shall be lockable.
6.2 Stability of mobile boards
This requirement is only applicable to mobile boards.
The board shall not overturn when tested according to EN 1023-3.
7 Surface tests and requirements for whiteboards
7.1 General
There are three performance levels specified in this Clause, Level 1, 2 and 3.
The minimum requirement for the writing surface is Level 1 (see also Clause 13).
The tests shall be carried out as specified in 7.2 to 7.6. Test samples shall have the same constitution as the
board to be tested, unless otherwise specified.
7.2 Ability to write and erase
7.2.1 Testing
Testing shall be carried out according to EN 438-2:1991, Clause 6, using CS 10 grindstone.
Three samples shall be tested, one for 500 cycles, one for 1 000 cycles and one for 2 000 cycles.
7.2.2 Method of marking the surface
By using a pen (5.4), two parallel straight lines shall be made over the abraded area (Figure 1).
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SIST EN 14434:2005
EN 14434:2004 (E)
The pen shall be fixed at 45° to the surface of the board with a vertical force F of 20 N acting on the pen
(Figure 2). The pen shall be pulled along a straight line at a speed of (20 ± 2) mm/s.
Assessment of the test result of the three samples shall be carried out after dry and wet cleaning as described
in EN 438-2:1991, 15.6.
Dry cleaning shall be carried out with paper tissue.
Wet cleaning shall be carried out with water based window cleaner containing alcohol and surfactants.

Key
1 Pen mark 1
2 Pen mark 2
3 Abrasion area
Figure 1 - Marking the surface over the abrasion area


Key

1 Pen
2 Board sample
D Direction of marking
Figure 2 — Marking the surface with a pen
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SIST EN 14434:2005
EN 14434:2004 (E)
7.2.3 Requirements
Table 1 — Ability to write and erase requirements for whiteboards
Requirement level Level 1 Level 2 Level 3
Test cycles 500 1 000 2 000
Assessment after dry min. 3 min. 3 min. 3
cleaning
Assessment after wet min. 5 min. 5 min. 5
cleaning

7.3 Scratch test and requirements
7.3.1 Testing
Testing shall be carried out according to EN 438-2:1991, Clause 14.
In order to carry out the test as specified, flexible surface materials shall be glued onto a substrate.
7.3.2 Requirements
Table 2 — Scratch requirements for whiteboards
Requirement level Level 1 Level 2 Level 3
Required force, F, in N
< 1 1 ≤ F < 7 ≥ 7

7.4 Impact test and requirements
7.4.1 Testing
Testing shall be carried out according to EN 438-2:1991, Clause 12.
7.4.2 Requirements
Table 3 — Impact requirements for whiteboards
Requirement level Level 1 Level 2 Level 3
Drop height
350 mm 500 mm 750 mm
Indentation without
Ø < 8 mm Ø < 8 mm Ø < 8 mm
cracks

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SIST EN 14434:2005
EN 14434:2004 (E)
7.5 Staining tests and requirements
7.5.1 Testing
Testing shall be carried out according to EN 438-2:1991, Clause 15 using the following liquids: Acetone,
ethanol, grease remover, ball pen ink, fountain pen ink, cleaning agent and permanent marker ink.
7.5.2 Requirements for each staining liquid
Table 4 — Staining requirements for whiteboards
Requirement level Level 1 Level 2 Level 3
Assessment 2 4 5

7.6 Colour degradation test and requirements
7.6.1 Testing
Testing shall be carried out according to EN 438-2:1991, Clause 16.
Assessment shall be carried out with both grey scale and blue scale.
7.6.2 Requirements
Table 5 — Colour degradation requirements for whiteboards
Requirement level Level 1 Level 2 Level 3
Blue scale I = 6 I = 6 I =
...