EN 14496:2005

SLOVENSKI STANDARD
01-april-2006
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Gypsum based adhesives for thermal/acoustic insulation composite panels and
plasterboards - Definitions, requirements and test methods
Kleber auf Gipsbasis für Verbundplatten zur Wärme- und Schalldämmung und
Gipsplatten - Begriffe, Anforderungen und Prüfverfahren
Adhésifs a base de plâtre pour complexes d'isolation thermique/acoustique en plaques
de plâtre et isolant - Définitions, spécifications et méthodes d'essai
Ta slovenski standard je istoveten z: EN 14496:2005
ICS:
83.180 Lepila Adhesives
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 14496
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2005
ICS 91.100.10; 91.120.10; 91.120.20

English Version
Gypsum based adhesives for thermal/acoustic insulation
composite panels and plasterboards - Definitions, requirements
and test methods
Adhésifs à base de plâtre pour complexes d'isolation Kleber auf Gipsbasis für Verbundplatten zur Wärme- und
thermique/acoustique en plaques de plâtre et isolant - Schalldämmung und Gipsplatten - Begriffe, Anforderungen
Définitions, spécifications et méthodes d'essai und Prüfverfahren
This European Standard was approved by CEN on 16 September 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14496:2005: E
worldwide for CEN national Members.

Contents
page
Foreword.4
Introduction .5
1 Scope .7
2 Normative references .7
3 Requirements.7
3.1 Fire behaviour .7
3.1.1 Reaction to fire.7
3.1.2 Fire resistance.7
3.2 Bond strength .8
3.3 Dangerous substances .8
3.4 Calcium sulfate content .8
3.5 End of utilisation time .8
4 Test methods.8
4.1 General.8
4.2 Determination of the calcium sulfate content.8
4.3 Determination of the water/adhesive ratio .8
4.4 Preparation of the paste for the tests.8
4.5 Determination of the end of utilisation time .8
4.5.1 Principle.8
4.5.2 Apparatus .9
4.5.3 Procedure .9
4.5.4 Expression of results .9
4.6 Determination of the bond strength.9
4.6.1 Principle.9
4.6.2 Apparatus .10
4.6.3 Procedure .12
4.6.4 Expressions of results .13
5 Evaluation of conformity.13
5.1 General.13
5.2 Type testing.13
5.2.1 General.13
5.2.2 Initial type testing .13
5.2.3 Further type testing .14
5.3 Factory production control.14
5.3.1 General.14
5.3.2 Personnel.14
5.3.3 Equipment .14
5.3.4 Raw materials and components.14
5.3.5 Product testing and evaluation .15
5.3.6 Traceability and marking .15
5.3.7 Non-conforming products .15
5.3.8 Corrective action.15
5.3.9 Other test methods.15
6 Designation .15
7 Marking, labelling and packaging .15
Annex A (informative) Sampling procedure for testing.17
A.1 General .17
A.2 Sampling procedure.17
A.2.1 General.17
A.2.2 Random sampling.17
A.2.3 Representative sampling .17
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
construction Products Directive .19
ZA.1 Scope and relevant characteristics .19
ZA.2 Attestation and declaration of conformity of products .20
ZA.3 CE marking and labelling.22
Bibliography.24
Foreword
This European Standard (EN 14496:2005) has been prepared by Technical Committee CEN/TC 241 "Gypsum and
gypsum based products", the secretariat of which is held by AFNOR.
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 May 2006, and conflicting national standards shall be withdrawn at the latest by
August 2007.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
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.
Introduction
Diagrams 1 and 2 show the relationship between this standard and the package of standards prepared to support
the family of gypsum and ancillary products.

Diagram 1 — Family of gypsum products
Diagram 2 — Family of ancillary products for use with gypsum products
1 Scope
This European standard specifies the characteristics and performances of gypsum based adhesives which are
composed of gypsum plasters defined in EN 13279-1 and of additives. These adhesives are used for fixing to walls
and partitions, gypsum plasterboard thermal/acoustic insulation composite panels according to EN 13950, gypsum
plasterboard linings according to EN 520 and other suitable products as reprocessed boards according to EN
14190 and cornices according to EN 14209. They assist in the construction of systems which provide thermal and
acoustic performance.
It covers the following performance characteristics: reaction to fire, fire resistance and bond strength to be
measured according to the corresponding European test methods.
It provides for the evaluation of conformity of the product to this standard.
This standard covers also additional technical characteristics that are of importance for the use and acceptance of
the product by the construction Industry and the reference tests for these characteristics.
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 196-1:1994, Methods of testing cement — Determination of strength
EN 13279-2:2004, Gypsum and gypsum plasters — Part 2 : Test methods
EN 13501-1, Fire classification of construction products and building elements — Part 1 : Classification using test
data from reaction to fire tests
EN 13501-2, Fire classification of construction products and building elements — Part 2 : Classification using data
from fire resistance tests, excluding ventilation services
EN 13823, Reaction to fire tests for building products — Building products excluding floorings exposed to the
thermal attack by a single burning item
3 Requirements
3.1 Fire behaviour
3.1.1 Reaction to fire
Gypsum building plaster is the main component of gypsum based adhesives. Therefore, gypsum based adhesives
are classified A.1 (no contribution to fire) without testing when they contain less than 1 % by weight or volume
(whichever is the more onerous) of organic material (Commission Decision 96/603/EEC as amended).
If they contain 1 % or more by weight or volume of organic material, they shall be determined and classified in
accordance with EN 13501-1.
When testing in EN 13823 is required, gypsum based adhesives shall be tested in their end use conditions.
3.1.2 Fire resistance
NOTE Resistance to fire is a characteristic dependant on an assembled system and not of the product in isolation.
When required, the fire resistance of a system including gypsum based adhesives for thermal/acoustic insulation
composite panels shall be determined and classified according to EN 13501-2.
3.2 Bond strength
The bond strength of the adhesive determined as described in 4.6 shall not be less than 0,06 MPa.
3.3 Dangerous substances
Materials used in products shall not release any dangerous substances in excess of the maximum permitted levels
specified in a relevant European Standard for the material or permitted in the national regulations of the member
state of destination.
3.4 Calcium sulfate content
The calcium sulfate content of the powder as a percentage by mass of the product shall not be less than 30 %
when calculated from the result of the test carried out in accordance with 4.2 of EN 13279-2:2004.
3.5 End of utilisation time
The end of utilisation time is determined as described in 4.5 shall be greater than the time declared by the
producer.
4 Test methods
4.1 General
This standard describes the specific test methods for gypsum based adhesives for thermal/acoustic insulation
composite panels and plasterboards.
General conditions of tests as well as test method which are common to gypsum plaster and gypsum based
adhesives are described in EN 13279-2.
Those test methods which enable the requirements of this European Standard to be evaluated are given below;
test methods for other properties, for examples particle size, may be used by agreement.
4.2 Determination of the calcium sulfate content
Test method is described in 4.2 of EN 13279-2:2004.
4.3 Determination of the water/adhesive ratio
Test method is described in 4.3.2 of EN 13279-2:2004.
4.4 Preparation of the paste for the tests
The paste used for the tests and for the preparation of test pieces is prepared as described in 4.3.2 of EN 13279-
2:2004.
4.5 Determination of the end of utilisation time
4.5.1 Principle
The depth of penetration of the conical penetrator (cone) into a gypsum based adhesive/water paste as the set
progresses shall be measured.
4.5.2 Apparatus
a) Vicat apparatus: see EN 13279-2:2004, Figures 1 and 2;
b) conical penetrator (cone): see EN 13279-2:2004, Figure 3;
c) glass plate : about 150 mm long and 150 mm wide;
d) Vicat ring : see EN 13279-2:2004, item b) in 4.3.2.2;
e) straight edge :140 mm length;
f) chronometer;
g) mixer and paddle: see 4.4 of EN 196-1:1994 (description in Annex A).

4.5.3 Procedure
The Vicat ring shall be placed on the glass plate with the larger opening in contact with the glass plate. The
gypsum based adhesive shall be mixed with the amount of water determined according to 4.3. The time at which
the adhesive is first added to the water is noted t . An excess of adhesive shall be transferred to the ring. Using a
sawing motion the vertically held straight edge is used to strike off the excess material. Lower the cone to the
surface of the adhesive using the spring plate of the release mechanism.

The guide bar shall be opened for testing using the release mechanism. The time between successive cone
penetration should be not greater than 1/20 of the utilisation time. The cone shall be cleaned and dried between
each penetration and there should be at least 12 mm between each penetration mark. The time at which the depth
of penetration achieved (35 ± 2) mm above the glass plate shall be noted t .
4.5.4 Expression of results
The end of utilisation time t is given by the following formula:

t = ( t − t ) x 0,8
where
t is the time at which the depth of penetration (35 ± 2) mm above the glass plate is achieved, in minutes
t is the time at which the adhesive is first added to the water, in minutes
4.6 Determination of the bond strength
4.6.1 Principle
The bond strength of an adhesive pad shall be measured by applying a force perpendicularly to the adhesion
interface.
NOTE Polystyrene is used as background as a typical insulating product.
4.6.2 Apparatus
a) Two blocks (gauges) 20 mm thickness, 200 mm length, 20 mm width;
b) five supports (racks) (150 × 150 × 60) mm (see Figure 1);
c) a non absorbent plate (e.g. PVC…);
d) five pieces of expanded moulded polystyrene (100 × 100 × 40) mm without surface treatment or cut expanded
polystyrene with similar surface (cohesion ≥ 0,14 MPa). Five pieces are required for each adhesive tested;
e) a taping knife (width ≥ 150 mm);
f) bowl, balance, stirrer, etc. for gauging;
g) a ventilated oven at (40 ± 2) °C;
h) five metal plates (100 × 100 × 10) mm;
i) double face adhesive tape (adhesion ≥ 0,15 MPa);
j) hot-melt adhesive (adhesion ≥ 0,15 MPa);
k) a dynamometer or an appropriate device to apply a convenient tensile force permitting readings to 10 N and
having a self-centring clamp (see Figure 2);
l) testing plate.
Dimensions in mm
Key
1 Metal plate
2 Polystyrene
3 Adhesive
4 Support (rack)
Figure 1 — Support (rack) for preparing specimens for adhesion strength test
Key
1 Operating device
2 Spherical head screw
3 Dynamometer
Figure 2 — Example of adhesion test apparatus
4.6.3 Procedure
NOTE Letters in brackets refer to 4.6.2.
Stick the metal plates (h) on the polystyrene pieces (d) with the adhesive tape (i). Gauge the appropriate quantity of
gypsum based adhesive for 5 pads (about 2 kg), homogenise the paste (no lumps or air bubbles) as indicated in
4.5.
Leave the paste to rest for 20 min and mix again before use.
Place on the supporting plate (c) the two blocks (a) of 20 mm thickness parallel and 110 mm apart.
Fill uniformly with the paste avoiding the production of air bubbles then eliminate the excess of paste.
Take off the two blocks (a) and adjust the length of the specimen to 100 mm.
Place the polystyrene piece into the rack and turn the rack over. Then place onto the adhesive to contact the
polystyrene. Press until the four feet of the rack are in contact with the supporting plate (c). Prepare five such
specimens.
After setting, take off the rack (b) a
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