Gypsum binders and gypsum plasters - Part 1: Definitions and requirements

This European Standard specifies the characteristics and performance of powder products based on gypsum binder for building purposes. This includes premixed gypsum building plasters for plastering of walls and ceilings inside buildings where they are applied as a finishing material which can be decorated. These products are specially formulated to meet their application requirements by the use of additives/admixtures, aggregates and other binders. Gypsum and gypsum based building plasters for manual and mechanical applications are included.
This European Standard also applies to gypsum binders both for direct use on site and for further processing into gypsum blocks, gypsum plasterboards, gypsum boards with fibrous reinforcement, gypsum fibrous plasterwork and gypsum ceiling elements. Gypsum mortar for internal not load bearing partitions not exposed to water is also included.
Calcium sulfate used as binder for floor screeds is not covered by this European Standard.
This European Standard defines the reference tests for technical characteristics and provides for the evaluation of conformity of the products covered by this European Standard.
Building lime, as calcium hydroxide, can be used as an additional binder together with gypsum binder. If gypsum binder is the principle active binding component in a plaster then this plaster is covered by this European Standard. If building lime is the principle active binding component in a plaster then the plaster is covered by EN 998-1.

Gipsbinder und Gips-Trockenmörtel - Teil 1: Begriffe und Anforderungen

Diese Europäische Norm legt die Eigenschaften und Leistungsmerkmale pulverförmiger Produkte auf Gipsbinderbasis für Anwendungen in Bauwerken fest. Dies schließt werkgemischte Gips-Trockenmörtel (Werktrockenmörtel) zum Verputz von Decken und Wänden innerhalb von Gebäuden ein, die eine fertige Oberfläche bilden, die weiter behandelt werden kann. Diese Produkte werden unter Verwendung von Zusatzstoffen/Zusatzmitteln, Zuschlägen und anderen Bindemitteln anforderungsbezogen hergestellt. Die Norm umfasst Gips Putztrockenmörtel und gipshaltige Putztrockenmörtel für die manuelle und mechanische Verarbeitung.
Diese Europäische Norm gilt auch für Gipsbinder sowohl zur Direktanwendung auf der Baustelle als auch zur Weiterverarbeitung zu Gips Wandbauplatten, Gipsplatten, faserverstärkten Gipsplatten, Formteilen aus faserverstärktem Gips und Gipselementen für Unterdecken sowie für Gipsmörtel für nichttragende Trennwände im Inneren von Gebäuden, die nicht mit Wasser in Berührung kommen.
Calciumsulfat Binder für Estriche werden von dieser Europäischen Norm nicht erfasst.
Diese Europäische Norm legt die Referenzprüfverfahren für technische Merkmale fest und schafft die Voraussetzung für die Bewertung der Konformität der von dieser Norm erfassten Produkte.
Baukalk (als Calciumhydroxyd) kann als zusätzliches Bindemittel zusammen mit Gipsbinder verwendet werden. Wenn Gipsbinder das aktive Hauptbindemittel ist, wird der betreffende Gips-Putztrockenmörtel von dieser Europäischen Norm erfasst. Ist Baukalk das aktive Hauptbindemittel gilt für den Putztrockenmörtel die Norm EN 998-1.

Liants-plâtres et enduits à base de plâtre - Partie 1 : Définitions et exigences

La présente Norme européenne spécifie les caractéristiques et les performances des produits en poudre à base de liant plâtre utilisés dans le domaine du bâtiment. Sont inclus les plâtres de construction pré-mélangés utilisés comme enduits sur les murs et plafonds à l’intérieur des constructions, appliqués sous forme de finitions aptes à recevoir une décoration. Ces produits sont formulés spécialement pour répondre aux exigences de l’utilisation grâce à l’ajout d’additifs/adjuvants, de granulats et d’autres liants. La norme couvre les plâtres de construction et les enduits à base de plâtre destinés aux applications manuelles et mécaniques.
La présente Norme européenne s’applique également aux liants-plâtres destinés à l’usage direct sur le chantier et à la transformation ultérieure en carreaux, plaques de plâtre, plaques de plâtre armées de fibres, ouvrages en staff et éléments de plafonds en plâtre. Le mortier de plâtre utilisé pour le montage de cloisons intérieures non porteuses et non exposées à l’eau est également inclus.
La présente Norme européenne ne concerne pas le sulfate de calcium utilisé comme liant pour les chapes de sols.
La présente Norme européenne définit les essais de référence concernant les caractéristiques techniques et permet l’évaluation de la conformité des produits couverts par la présente Norme européenne.
La chaux de construction, sous forme d’hydroxyde de calcium, est utilisable comme liant complémentaire avec un liant-plâtre. Si ce dernier constitue l’élément principal actif d’un enduit, alors cet enduit est couvert par la présente Norme européenne. Si la chaux de construction constitue l’élément principal actif de l’enduit, alors cet enduit est couvert par l’EN 998-1.

Mavčna veziva in mavčni notranji ometi - 1. del: Definicije in zahteve

General Information

Status
Not Published
Public Enquiry End Date
19-Oct-2017
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
06-Aug-2019
Due Date
11-Aug-2019
Completion Date
06-Aug-2019

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Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 13279-1:2017
01-oktober-2017
0DYþQDYH]LYDLQPDYþQLQRWUDQMLRPHWLGHO'HILQLFLMHLQ]DKWHYH
Gypsum binders and gypsum plasters - Part 1: Definitions and requirements
Gipsbinder und Gips-Trockenmörtel - Teil 1: Begriffe und Anforderungen
Liants-plâtres et enduits à base de plâtre - Partie 1 : Définitions et exigences
Ta slovenski standard je istoveten z: prEN 13279-1
ICS:
01.040.91 Gradbeni materiali in gradnja Construction materials and
(Slovarji) building (Vocabularies)
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
oSIST prEN 13279-1:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13279-1:2017

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oSIST prEN 13279-1:2017


DRAFT
EUROPEAN STANDARD
prEN 13279-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2017
ICS 01.040.91; 91.100.10 Will supersede EN 13279-1:2008
English Version

Gypsum binders and gypsum plasters - Part 1: Definitions
and requirements
Liants-plâtres et enduits à base de plâtre - Partie 1 : Gipsbinder und Gips-Trockenmörtel - Teil 1: Begriffe
Définitions et exigences und Anforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 241.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13279-1:2017 E
worldwide for CEN national Members.

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oSIST prEN 13279-1:2017
prEN 13279-1:2017 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Types of gypsum binders and gypsum plasters . 7
5 Requirements . 8
5.1 Requirements linked to the end use conditions . 8
5.1.1 Reaction to fire . 8
5.1.2 Fire resistance . 9
5.1.3 Acoustic performance . 9
5.1.4 Thermal resistance . 9
5.1.5 Dangerous substances . 10
5.2 Requirements for gypsum binders . 10
5.3 Requirements for gypsum plasters . 10
5.4 Requirements for gypsum plasters for special purposes . 11
6 Assessment and verification of constancy of performance — AVCP . 12
6.1 General . 12
6.2 Type testing . 13
6.2.1 General . 13
6.2.2 Test samples, testing and compliance criteria . 13
6.2.3 Test reports . 14
6.2.4 Shared other party results . 14
6.2.5 Cascading determination of the product type results . 15
6.3 Factory production control (FPC) . 16
6.3.1 General . 16
6.3.2 Requirements . 16
6.3.3 Product specific requirements . 19
6.3.4 Initial inspection of factory and of FPC . 19
6.3.5 Continuous surveillance of FPC (only for products covered by AVCP system 1+, 1 and
2+) . 20
6.3.6 Procedure for modifications . 20
6.3.7 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 20
7 Designation of gypsum binders and gypsum plasters . 21
8 Marking, labelling and packaging . 21
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No. 305/2011 . 22
ZA.1 Scope and relevant characteristics . 22
ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 22
ZA.3 Assignment of AVCP tasks . 23
Bibliography . 24

2

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European foreword
This document (prEN 13279-1:2017) has been prepared by Technical Committee CEN/TC 241 “Gypsum
and gypsum based products”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13279-1:2008.
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 Regulation (EU)
No. 305/2011.
For relationship with Regulation (EU) No. 305/2011, see informative Annex ZA, which is an integral
part of this document.
The main technical changes that have been made in this new edition of EN 13279-1 are the following:
a) Introduction and Figure 1 deleted;
b) normative references updated;
c) Clause 6 and Annex ZA updated in line with the CPR;
d) deletion of fineness in Table 4;
e) designation of gypsum binders and gypsum plasters.
This European Standard on gypsum binders and gypsum plasters consists of two parts:
— Part 1: Definitions and requirements;
— Part 2: Test methods.
3

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1 Scope
This European Standard specifies the characteristics and performance of powder products based on
gypsum binder for building purposes. This includes premixed gypsum building plasters for plastering of
walls and ceilings inside buildings where they are applied as a finishing material which can be
decorated. These products are specially formulated to meet their application requirements by the use of
additives/admixtures, aggregates and other binders. Gypsum and gypsum based building plasters for
manual and mechanical applications are included.
This European Standard also applies to gypsum binders both for direct use on site and for further
processing into gypsum blocks, gypsum plasterboards, gypsum boards with fibrous reinforcement,
gypsum fibrous plasterwork and gypsum ceiling elements. Gypsum mortar for internal not load bearing
partitions not exposed to water is also included.
Calcium sulfate used as binder for floor screeds is not covered by this European Standard.
This European Standard defines the reference tests for technical characteristics and provides for the
evaluation of conformity of the products covered by this European Standard.
Building lime, as calcium hydroxide, can be used as an additional binder together with gypsum binder. If
gypsum binder is the principle active binding component in a plaster then this plaster is covered by this
European Standard. If building lime is the principle active binding component in a plaster then the
plaster is covered by EN 998-1.
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.
EN 12664:2001, Thermal performance of building materials and products — Determination of thermal
resistance by means of guarded hot plate and heat flow meter methods — Dry and moist products of
medium and low thermal resistance
EN 13279-2:2014, Gypsum binders and gypsum plasters — Part 2: Test methods
EN 13501-1:2007+A1:2009, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13501-2:2016, Fire classification of construction products and building elements — Part 2:
Classification using data from fire resistance tests, excluding ventilation services
EN ISO 354:2003, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003)
EN ISO 717-1:2013, Acoustics — Rating of sound insulation in buildings and of building elements —
Part 1: Airborne sound insulation (ISO 717-1:2013)
prEN ISO 6946:2015, Building components and building elements — Thermal resistance and thermal
transmittance — Calculation method (ISO/DIS 6946:2015)
EN ISO 10140-3:2010, Acoustics — Laboratory measurement of sound insulation of building elements —
Part 3: Measurement of impact sound insulation (ISO 10140-3:2010)
EN ISO 10456:2007, Building materials and products — Hygrothermal properties —Tabulated design
values and procedures for determining declared and design thermal values (ISO 10456:2007)
4

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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
gypsum binder
binder consisting of calcium sulfate in its various hydration phases
EXAMPLE Hemihydrate (CaSO · 0,5 H O) and anhydrite (CaSO ).
4 2 4
Note 1 to entry: Gypsum binder can be obtained by calcination of calcium sulfate dihydrate (CaSO · 2H O).
4 2
Note 2 to entry: When mixed with water, gypsum binder is used to hold solid particles together in a coherent
mass by a setting process.
3.2
gypsum plaster (premixed gypsum building plaster)
all kinds of gypsum building plaster, gypsum based building plaster and gypsum-lime building plaster
used in buildings
3.3
gypsum building plaster
gypsum plaster consisting of at least 50 % calcium sulfate as the principle active binding component
and not more than 5 % lime (calcium hydroxide)
Note 1 to entry: Additives and aggregates can be added by the manufacturer.
3.4
gypsum based building plaster
gypsum plaster consisting of less than 50 % calcium sulfate as the principle active binding component
and not more than 5 % lime (calcium hydroxide)
Note 1 to entry: Additives and aggregates can be added by the manufacturer.
3.5
gypsum-lime plaster
gypsum building plaster according to 3.3 or gypsum based building plaster according to 3.4 with more
than 5 % building lime (calcium hydroxide)
Note 1 to entry: Additives and aggregates can be added by the manufacturer.
3.6
lightweight gypsum building plaster
gypsum plasters in accordance with gypsum building plaster, gypsum based building plaster and
gypsum-lime plaster that incorporate either lightweight inorganic aggregates, such as expanded perlite
or vermiculite, or lightweight organic aggregates
Note 1 to entry: Additives and aggregates can be added by the manufacturer.
3.7
gypsum building plaster with enhanced surface hardness
gypsum plaster specially formulated to satisfy requirements for plasterwork with enhanced surface
hardness
5

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3.8
gypsum plaster for fibrous plasterwork
specially manufactured plaster for production and assembly of fibrous gypsum casts
3.9
gypsum mortar
specially formulated plaster used for production of gypsum mortar to assemble bricks for non-load
bearing walls and partitions not exposed to water
3.10
gypsum acoustic plaster
specially manufactured plaster for sound absorption purposes
3.11
gypsum thermal insulation plaster
specially manufactured plaster for thermal insulation purposes
3.12
gypsum fire protection plaster
specially manufactured plaster for fire exposed situations
3.13
gypsum thin coat plaster
specially manufactured plaster usually applied to thicknesses of 3 mm to 6 mm
3.14
additives and admixtures
materials (not aggregates or binders), such as fillers, fibres, pigments, building lime (< 5 %), retarders,
air entraining, water retaining and plasticizing agents added to gypsum plaster to improve its
properties or to achieve particular properties
3.15
aggregates
natural, synthetic or recycled materials suitable for use in buildings, e. g. lightweight aggregates such as
perlite or vermiculite or aggregates such as siliceous sand or calcareous crushed stone sand
3.16
lightweight aggregates
3
aggregates with a bulk density lower than 800 kg/m
3.17
manual gypsum plaster
gypsum plaster formulated for manual application, batch mixed with water and applied manually to the
background
3.18
projection gypsum plaster
gypsum plaster formulated for mechanical application, mixed with water to the required consistency
and applied by projection machine to the background
3.19
one coat plaster system
gypsum plaster applied in one coat which fulfils all the functions of an undercoat and a final coat
6

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3.20
multi-coat plaster system
plaster system requiring at least two layers of plaster including final coat
3.21
undercoat
lower plaster layer(s) of a plastering system which needs a final coat
3.22
final coat
upper (last) layer in a multi-coat plastering system
3.23
finishing compound
gypsum finishing product for final application with thicknesses of 0,1 mm to 3,0 mm, to obtain a smooth
surface
4 Types of gypsum binders and gypsum plasters
The designation of the gypsum binders and gypsum plasters shall be in accordance with Table 1.
7

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Table 1 — Types of gypsum binders and gypsum plasters
Designation Notation
Gypsum binders e.g.: A
gypsum binders for direct use or further processing (dry powder products) A1
gypsum binders for direct use on site A2
gypsum binders for further processing (e.g. for gypsum blocks, gypsum
plasterboards, gypsum elements for suspended ceilings, gypsum boards with fibrous A3
reinforcement)
Gypsum plaster: B
gypsum building plaster B1
gypsum based building plaster B2
gypsum-lime building plaster B3
lightweight gypsum building plaster B4
lightweight gypsum based building plaster B5
lightweight gypsum-lime building plaster B6
gypsum building plaster with enhanced surface hardness B7
Gypsum plaster for special purposes: C
gypsum plaster for fibrous plasterwork C1
gypsum mortar C2
acoustic plaster C3
thermal insulation plaster C4
fire protection plaster C5
thin coat plaster C6
finishing compound C7
5 Requirements
5.1 Requirements linked to the end use conditions
5.1.1 Reaction to fire
Gypsum binders and gypsum plasters are classified as reaction to fire Class A1 (no contribution to the
development of a fire) without testing, when they contain ≤ 1 % by weight or volume (whichever is the
more onerous) of organic material.
NOTE See the Commission Decision 96/603/EC as amended.
If the products contain > 1 % by weight or volume of organic material, they shall be tested and then
classified in accordance with EN 13501-1.
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5.1.2 Fire resistance
NOTE Fire resistance is a characteristic dependent on an assembled system and not of the product in
isolation.
In end use conditions, gypsum and gypsum based building plasters provide specific levels of fire
resistance. Where relevant, (especially fire protection plaster) they shall be tested and then classified in
accordance with EN 13501-2.
5.1.3 Acoustic performance
5.1.3.1 Direct airborne sound insulation
NOTE Direct airborne sound insulation is a characteristic dependent on an assembled system and not of the
product in isolation.
When required, the direct airborne sound insulation of an installed system including gypsum plaster
and/or binder shall be determined according to EN ISO 10140-3 and EN ISO 717-1 as appropriate.
5.1.3.2 Acoustic absorption
NOTE Acoustic absorption is a characteristic dependent on an assembled system and not of the product in
isolation.
When required, (especially acoustic plaster) the manufacturer shall declare the sound absorption
performance in the end-use condition as tested according to EN ISO 354.
5.1.4 Thermal resistance
When required, (especially thermal insulation plaster) the thermal resistance of the assembled system
of gypsum binders and gypsum plasters in the end use condition shall be calculated using the formula
given in prEN ISO 6946:2015, 6.7.1.2.
The design values of thermal conductivity required for this calculation may be used as given Table 2.
For gypsum plasters and gypsum binders where the quantity of aggregates is sufficient to cause a
significant deviation from the values given in Table 2, the thermal conductivity shall be determined
according to EN 12664.
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Table 2 — Design values of thermal conductivity of hardened gypsum binders and gypsum
plasters
Density of the material
Thermal conductivity λ
10.dry,mat
(net dry density)
W/(m·K)
3
kg/m
a P = 90 %

P = 50 %
200 0,074 0,081
300 0,086 0,094
400 0,10 0,11
500 0,12 0,13
600 0,14 0,15
700 0,16 0,17
800 0,18 0,20
900 0,21 0,23
1 000 0,25 0,27
1 200 0,33 0,36
1 400 0,45 0,49
1 600 0,61 0,66
1 800 0,82 0,89
2 000 1,11 1,21
a
Calculations in support of the Energy Performance of Buildings Directive are related
to buildings and not to individual products. U-values used in such calculations are based
on the mean thermal resistance of masonry elements. Therefore the recommended
material λ value is the 50 % fractile.
P … percentile

The values given in Table 2 are taken from EN 1745:2012, Table A.12. The reference values concern dry
material used inside. When the material is wet, these values shall be adjusted using EN ISO 10456.
5.1.5 Dangerous substances
Where required the release of dangerous substances shall be declared.
5.2 Requirements for gypsum binders
Calcium sulphate content shall be at least 50 %. The properties of gypsum binders shall be determined
in accordance with EN 13279-2.
NOTE Other agreements can be defined in a specific contract between producer and user.
5.3 Requirements for gypsum plasters
The properties of gypsum plasters when determined in accordance with EN 13279-2 shall conform to
the values given in Table 3.
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Table 3 — Requirements for gypsum plasters
Initial setting time
Gypsum
Adhesive
min
Flexural Compressive Surface
Gypsum binder
strength
strength strength hardness
manual projection
plasters content
2 2 2
2
N/mm N/mm N/mm
N/mm
gypsum gypsum
%
plaster plaster
B1 ≥ 50
Fracture occurs
within the
B2 < 50
background or
B3 a
the gypsum

≥ 1,0 ≥ 2,0 −
plaster, when
b
B4 ≥ 50 > 50
> 20
fracture occurs in
interface
B5 < 50
gypsum/backgro
B6 a

und the value
shall be ≥ 0,1.
B7 ≥ 50 ≥ 2,0 ≥ 6,0 ≥ 10
a
According to 3.3, 3.4, 3.5 and 3.6.
b
For some manual applications a lower value than 20 min is permitted. In that case the initial setting time shall

be declared by the producer.
5.4 Requirements for gypsum plasters for special purposes
The properties of gypsum plasters for special purposes when determined in accordance with
EN 13279-2 shall conform to the values given in Table 4.
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Table 4 — Requirements for gypsum plasters for special purposes
Gypsum
Initial setting Flexural Compressive Surface
binder
time strength strength hardness
content
Gypsum plaster
2 2 2
% min
N/mm N/mm N/mm
a a b
 Vicat Knife 7d
2h 2h 7d
Fibrous
b
C1 plaster > 50 — > 8 ≥ 1,5 — > 4,0 > 10
≥ 3,0
works
gypsum
C2 > 50 > 30 — — — ≥ 2,0 — —
mortar
Acoustic
c
C3 — — — — — — —
> 20
plaster
Thermal
c
C4 insulation — — — — — — —
> 20
plaster
Deviatio
Fire n from
c
C5 protection nominal — — — - — —
> 20
plaster content
< 10 %
Thin coat
c
C6 > 50 — — ≥ 1,0 ≥ 2,0 — —
> 20
plaster
c
C7 Finishing > 50 — — ≥ 1,0 ≥ 2,0 — —
> 20
a
After conditioning for 2 h after the final setting time under the conditions specified in EN 13279–2:2014, 3.1.
b
After conditioning for 7 d in a humid atmosphere ((20 ± 2) °C and (95 ± 5) % of relative humidity), followed
by drying to constant mass at (40 ± 2) °C.
c
For some manual applications, a lower value than 20 min is permitted. In that case the initial setting time
shall be declared by the producer.
6 Assessment and verification of constancy of performance — AVCP
6.1 General
The compliance of gypsum binders and gypsum plasters with the requirements of this standard and
with the performances declared by the manufacturer in the DoP shall be demonstrated by:
— determination of the product type
— factory production control by the manufacturer, including product assessment.
The manufacturer shall always retain the overall control and shall have the necessary means to take
responsibility for the conformity of the product with its declared performance(s).
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6.2 Type testing
6.2.1 General
All performances related to characteristics included in this standard shall be determined when the
manufacturer intends to declare the respective performances unless the standard gives provisions for
declaring them without performing tests (e.g. use of previously existing data, CWFT and conventionally
accepted performance).
Assessment previously performed in accordance with the provisions of this standard, may be taken into
account provided that they were made to the same or a more rigorous test method, under the same
AVCP system on the same product or products of similar design, construction and functionality, such
that the results are applicable to the product in question.
NOTE Same AVCP system means testing by an independent third party (applies only for products covered by
system 1+, 1 and 3), under the responsibility of a notified product certification body (applies only for products
covered by system 1+ and 1).
For the purposes of assessment, the manufacturer's products may be grouped into families, where it is
considered that the results for one or more characteristics from any one product within the family are
representative for that same characteristics for all products within that same family.
Products may be grouped in different families for different characteristics.
Reference to the assessment method standards should be made to allow the selection of a suitable
representative sample.
In addition, the determination of the product type shall be performed for all characteristics included in
the standard for which the manufacturer declares the performance:
— at the beginning of the production of a new or modified gypsum binders and gypsum plasters
(unless a member of the same product range), or
— at the beginning of a new or modified method of production (where this may affect the stated
properties); or
they shall be repeated for the appropriate characteristic(s), whenever a change occurs in the gypsum
binders and gypsum plasters design, in the raw material or in the supplier of the components, or in the
method of production (subject to the definition of a family), which would affect significantly one or
more of the characteristics.
Where components are used whose characteristics have already been determined, by the component
manufacturer, on the basis of assessment methods of other product standards, these characteristics
need not be re-assessed. The specifications of these components shall be documented.
Products bearing regulatory marking in accordance with appropriate harmonized European
specifications may be presumed to have the performances declared in the DoP, although this does not
replace the responsibility on the gypsum binders and gypsum plasters manufacturer to ensure that the
gypsum binders and gypsum plasters as a whole is correctly manufactured and its component products
have the declared performance values.
6.2.2 Test samples, testing and compliance criteria
The number of samples of gypsum binders and gypsum plasters to be tested/assessed shall be in
accordance with Table 5.
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oSIST prEN 13279-1:2017
prEN 13279-1:2017 (E)
Table 5 — Number of samples to be tested and compliance criteria
Assessment Compliance
Characteristic Requirement No. of samples
method criteria
According to
Reaction to fire
5.1.1 5.1.1 EN 13279–2:2014, 5.1.1
(for exposed situations)
Clause 3
Direct airborne sound
According to
insulation
5.1.3.1 5.1.3.1 EN 13279–2:2014, 5.1.3.1
a
Clause 3
...

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