oSIST prEN 17140:2021
(Main)Thermal insulation products for buildings - Factory-made vacuum insulation panels (VIP) - Specification
Thermal insulation products for buildings - Factory-made vacuum insulation panels (VIP) - Specification
This document specifies characteristics of factory-made vacuum insulation panels (VIP) intended to be used for the thermal insulation of buildings (roofs, walls, ceilings and floors).
This document is applicable for all types of factory-made vacuum insulation panels (VIP), independent of the type of envelope (see 3.1.11), using the following core materials (see 3.1.10):
— organic fibres;
— inorganic fibres and particles (e.g. glass fibre, silica, etc.).
This document is applicable for factory-made vacuum insulation panels (VIP) with or without desiccants (see 3.1.12) and with and without evacuation valve (3.1.14).
The products covered by this document can be used in roofs, walls, ceilings and floors.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of factory-made vacuum insulation panels (VIP).
This document does not cover products:
— intended to be used for the thermal insulation of building equipment and industrial installations;
— intended to be used for civil engineering works;
— intended to be used as perimeter or foundation;
— intended to be used for acoustic applications;
— with a thermal resistance RD lower than 0,5 m2⋅K/W;
— that contain getters (3.1.13);
— that have protective layers (3.1.9).
Wärmedämmstoffe für Gebäude - Werksmäßig hergestellte Vakuumisolationspaneele (VIP) - Spezifikation
Dieses Dokument legt die Merkmale für werksmäßig hergestellte Vakuumisolationspaneele (VIP) fest, die für die Wärmedämmung von Gebäuden (Dächer, Wände, Decken und Böden) verwendet werden.
Dieses Dokument gilt für werksmäßig hergestellte Vakuumisolationspaneele (VIP), unabhängig von der Art der Hülle (siehe 3.1.11), für welche die folgenden Kernmaterialien verwendet werden (siehe 3.1.10):
- organische Fasern;
- anorganische Fasern und Partikel (z. B. Glasfaser, Kieselsäure).
Dieses Dokument gilt für werksmäßig hergestellte Vakuumisolationspaneele (VIP) mit oder ohne Trocknungsmittel (siehe 3.1.12) und mit oder ohne Evakuierungsventil (3.1.14).
Die von diesem Dokument abgedeckten Produkte können in Dächern, Wänden, Decken und Böden verwendet werden.
Dieses Dokument legt Verfahren zur Bewertung und Überprüfung der Leistungsbeständigkeit (AVCP) von Merkmalen von werksmäßig hergestellten Vakuumisolationspaneelen (VIP) fest.
Dieses Dokument gilt nicht für Produkte,
- die für die Wärmedämmung von Haustechnik und Betriebsanlagen vorgesehen sind;
- die für die Verwendung in Hoch- und Tiefbauten vorgesehen sind;
- die als Einfassung oder Fundament verwendet werden sollen;
- die für die Verwendung in Akustikanwendungen vorgesehen sind;
- die einen niedrigeren Wärmedurchlasswiderstand RD als 0,5 m2⋅K/W aufweisen;
- die Getter (3.1.13) enthalten;
- die mit Schutzschichten (3.1.9) versehen sind.
Produits isolants thermiques pour le bâtiment - Panneaux Isolants sous Vide produits de façon industrielle (PIV) - Spécification
Le présent document définit les caractéristiques pour les panneaux isolants sous vide (VIP) manufacturés, qui sont utilisés pour l’isolation thermique des bâtiments (toits, murs, plafonds et sols).
Le présent document s’applique aux panneaux d’isolation sous vide (VIP) manufacturés, indépendamment du type d’enveloppe (voir 3.1.11), en utilisant les matériaux de base suivants (voir 3.1.10) :
- fibres organiques ;
- fibres et particules inorganiques (par exemple, fibre de verre, silice, etc.).
Le présent document s’applique aux panneaux isolants sous vide (VIP) manufacturés, avec ou sans dessicant (voir 3.1.12) et avec ou sans soupape d’évacuation (3.1.14).
Les produits couverts par le présent document peuvent être utilisés dans le cadre de travaux sur des toitures, murs, plafonds et sols.
Le présent document définit le mode opératoire à suivre pour l’évaluation et la vérification de la constance des performances (EVCP) des caractéristiques des panneaux isolants sous vide (VIP) manufacturés.
Le présent document ne couvre pas les produits :
- conçus pour être utilisés pour l’isolation de l’équipement du bâtiment et des installations industrielles ;
- conçus pour être utilisés dans le cadre de travaux de génie civil ;
- conçus pour être utilisés en tant que périmètre ou fondation ;
- destinés à être utilisés pour des applications acoustiques ;
- dont la résistance thermique RD est inférieure à 0,5 m2·K/W ;
- qui contiennent des getters (3.1.13) ;
- qui disposent de couches de protection (3.1.9).
Toplotnoizolacijski proizvodi za stavbe - Industrijsko izdelani vakuumski izolacijski paneli (VIP) - Specifikacija
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 17140:2021
01-november-2021
Toplotnoizolacijski proizvodi za stavbe - Industrijsko izdelani vakuumski izolacijski
paneli (VIP) - Specifikacija
Thermal insulation products for buildings - Factory-made vacuum insulation panels (VIP)
- Specification
Wärmedämmstoffe für Gebäude - Werksmäßig hergestellte Vakuumisolationspaneele
(VIP) - Spezifikation
Produits isolants thermiques pour le bâtiment - Panneaux Isolants sous Vide produits de
façon industrielle (PIV) - Spécification
Ta slovenski standard je istoveten z: prEN 17140
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
oSIST prEN 17140:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17140:2021
DRAFT
EUROPEAN STANDARD
prEN 17140
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2021
ICS 91.100.60 Will supersede EN 17140:2020
English Version
Thermal insulation products for buildings - Factory-made
vacuum insulation panels (VIP) - Specification
Produits isolants thermiques pour le bâtiment - Wärmedämmstoffe für Gebäude - Werksmäßig
Panneaux Isolants sous Vide produits de façon hergestellte Vakuumisolationspaneele (VIP) -
industrielle (PIV) - Spécification Spezifikation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 88.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17140:2021 E
worldwide for CEN national Members.
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Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions, symbols, units and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviated terms . 8
4 Characteristics . 11
4.1 Reaction to fire . 11
4.2 Propensity to undergo continuous smouldering. 11
4.3 Release of VOCs . 12
4.4 Compressive strength . 12
4.5 Tensile strength perpendicular to faces . 12
4.6 Thermal resistance . 12
4.7 Durability aspects . 13
5 Assessment methods . 14
5.1 General . 14
5.2 Test methods . 15
6 Assessment and verification of constancy of performance - AVCP . 20
6.1 General . 20
6.2 Assessment of performance . 20
6.3 Verification of constancy of performance . 21
Annex A (normative) Determination of the expressed values of thermal resistance and
thermal conductivity . 24
Annex B (normative) Factory production control (FPC) . 26
Annex C (normative) Determination of the aged values of thermal resistance and thermal
conductivity including edge effect . 29
Annex D (normative) Measurement of p1/2 of core materials . 40
Annex E (normative) Barrier performance of the envelope . 42
Annex F (normative) Determination of desiccant service life time . 44
Annex G (normative) Measurement of inner pressure . 46
Annex H (normative) Mounting and fixing procedure for reaction to fire tests . 53
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 57
Bibliography. 61
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European foreword
This document (prEN 17140:2021) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 17140:2020.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral
part of this document.
3
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Introduction
This document specifies factory-made vacuum insulation panels (VIP). In the building environment,
these products are used for the thermal insulation of buildings and are used in components or within
systems that are applied to the building envelope. Therefore, the products in end use conditions are not
directly exposed to the environment and always covered by additional layers.
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1 Scope
This document specifies characteristics of factory-made vacuum insulation panels (VIP) intended to be
used for the thermal insulation of buildings (roofs, walls, ceilings and floors).
This document is applicable for factory-made vacuum insulation panels (VIP), independent of the type
of envelope (see 3.1.11), using the following core materials (see 3.1.10):
— organic fibres;
— inorganic fibres and particles (e.g. glass fibre, silica, etc.).
This document is applicable for factory-made vacuum insulation panels (VIP) with or without
desiccants (see 3.1.12) and with and without evacuation valve (3.1.14).
The products covered by this document can be used in roofs, walls, ceilings and floors.
This document specifies procedures for assessment and verification of constancy of performance
(AVCP) of characteristics of factory-made vacuum insulation panels (VIP).
This document does not cover products:
— intended to be used for the thermal insulation of building equipment and industrial installations;
— intended to be used for civil engineering works;
— intended to be used as perimeter or foundation;
— intended to be used for acoustic applications;
2
— with a thermal resistance R lower than 0,5 m ⋅K/W;
D
— that contain getters (3.1.13);
— that have protective layers (3.1.9).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 822:2013, Thermal insulating products for building applications - Determination of length and width
EN 823:2013, Thermal insulating products for building applications - Determination of thickness
EN 824:2013, Thermal insulating products for building applications - Determination of squareness
EN 825:2013, Thermal insulating products for building applications - Determination of flatness
EN 826:2013, Thermal insulating products for building applications - Determination of compression
behaviour
EN 1602:2013, Thermal insulating products for building applications - Determination of the apparent
density
EN 1604:2013, Thermal insulating products for building applications - Determination of dimensional
stability under specified temperature and humidity conditions
5
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EN 1605:2013, Thermal insulating products for building applications - Determination of deformation
under specified compressive load and temperature conditions
EN 1606:2013, Thermal insulating products for building applications - Determination of compressive
creep
EN 1607:2013, Thermal insulating products for building applications - Determination of tensile strength
perpendicular to faces
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 12667:2001, Thermal performance of building materials and products - Determination of thermal
resistance by means of guarded hot plate and heat flow meter methods - Products of high and medium
thermal resistance
EN 13238:2010, Reaction to fire tests for building products - Conditioning procedures and general rules
for selection of substrates
EN 13501-1:2018, Fire classification of construction products and building elements - Part 1:
Classification using data from reaction to fire tests
EN 13820:2003, Thermal insulating materials for building applications - Determination of organic
content
EN 13823:2020, Reaction to fire tests for building products - Building products excluding floorings
exposed to the thermal attack by a single burning item
EN 16516:2017+A1:2020, Construction products: Assessment of release of dangerous substances -
Determination of emissions into indoor air
EN 16733:2016, Reaction to fire tests for building products - Determination of a building product's
propensity to undergo continuous smouldering
EN ISO 1182:2020, Reaction to fire tests for products - Non-combustibility test (ISO 1182:2020)
EN ISO 1716:2018, Reaction to fire tests for products - Determination of the gross heat of combustion
(calorific value) (ISO 1716:2018)
EN ISO 10211:2017, Thermal bridges in building construction - Heat flows and surface temperatures -
Detailed calculations (ISO 10211:2017)
1
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)
EN ISO 11925-2:2020, Reaction to fire tests - Ignitability of products subjected to direct impingement of
flame - Part 2: Single-flame source test (ISO 11925-2:2020)
ISO 16269-6:2014, Statistical interpretation of data - Part 6: Determination of statistical tolerance
intervals
1
As impacted by EN ISO 10456:2007/AC:2009.
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3 Terms and definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1.1
vacuum insulation panel
VIP
insulation product made of a sealed barrier envelope containing a core material with an open porosity
structure, where the gas pressure inside the sealed barrier envelope is lowered below atmospheric
pressure
3.1.2
centre of panel
COP
area of the VIP whose thermal performance is not affected by the edge effect
3.1.3
edge effect
form of thermal bridging along the edge due to the higher thermal conductivity of the outer envelope,
both through the material of the envelope itself and the sealed folded envelope, compared to the core
3.1.4
inner pressure
total gas pressure within the VIP, measured in mbar
3.1.5
pressure compensation method
method of testing inner pressure of a VIP using a laminate-lift-off technique with a vacuum chamber or
suction bell
Note 1 to entry: In some literature also called foil-lift-off technique.
3.1.6
vacuum chamber
device to remove air or other gases from a volume around a VIP to determine the inner pressure of a
VIP by the pressure compensation method
3.1.7
suction bell
device to remove air or other gases from a volume connected to a part of a VIP to determine the inner
pressure of a VIP by the pressure compensation method
3.1.8
pressure sensor
device to measure the inner pressure of a VIP
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3.1.9
protective layer
functional surface material, e.g. paper, glass fibre textile or rubber, which is not considered as separate
thermal insulation layer to be added to the thermal resistance of the product, intended to improve the
handling of the product and protect it from damage
3.1.10
core material
insulation material with an open porosity structure constituting the main component inside the VIP
envelope
3.1.11
envelope
airtight and water-tight outer layer of the VIP securing the vacuum inside the VIP
3.1.12
desiccant
additive material different from the core material which intends to absorb or adsorb water vapour in
the sealed panel
3.1.13
getter
additive material different from the core material which intends to absorb or adsorb other gases than
water vapour in the sealed panel
3.1.14
evacuation valve
device to connect the VIP to a vacuum pump
3.2 Symbols and abbreviated terms
For the purposes of this document, the following symbols, units and abbreviated terms apply.
2
A surface area of the VIP m
2
A metering area of the GHP or HFM apparatus used for the m
m
measurement
b core width m
c
b working width m
w
CS(Y) compressive stress/strength(Y=yield) kPa
d thickness m
dambient thickness of the ventilated VIP m
d nominal thickness of the product m
N
f acceleration factor for dry air of the VIP envelope –
air
f acceleration factor for water vapour of the VIP envelope –
v
k factor related to the number of test results available –
l core length m
c
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l working length m
w
l length of the joints within the metering area m
ψ
N number of test results –
3 2
P air permeability of the VIP envelope m Pa/ (m ⋅s)
air
2
P water intake rate of the VIP envelope kg/(m ⋅s)
v
p pressure inside the VIP Pa
air
p maximum value of the inner pressure measured at least Pa
lim
24 h after production
p water vapour pressure inside the VIP Pa
v
p initial value of the inner pressure Pa
0
p inner pressure of a VIP, where λ increases by 1/2 of the Pa
1/2
thermal conductivity of still air.
2
R R at centre of panel plus ageing m ⋅K/W
COP,90/90aged 90/90
2
R expressed thermal resistance including ageing, edge- m ⋅K/W
D
effect and rounding rules
2
R mean thermal resistance m ⋅K/W
mean
2
R one test result of thermal resistance m ⋅K/W
i
2
R 90 % fractile with a confidence level of 90 % for the m ⋅K/W
90/90
thermal resistance
2
S top surface area (length x width) of the VIP m
S deviation from squareness on width or length mm/m
b
S deviation from flatness mm
max
S nominal perimeter of the product m
N
2
s estimate of the standard deviation of the thermal m ⋅K/W
R
resistance
s estimate of the standard deviation of the thermal W/(m⋅K)
λ
conductivity
s estimate of the standard deviation of the initial thermal W/(m⋅K)
λi
conductivity within 90 days of production
T temperature K
t time s
t service life time of the desiccant a
Des
Χ water content inside the VIP mass-%
X´ change of water content with time at 50°C 70 % RH mass-%/s
t,50/70
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X compressive creep mm
ct
X total thickness reduction mm
t
λ thermal conductivity W/(m⋅K)
λ thermal conductivity of a ventilated VIP at centre of the W/(m⋅K)
ambient
panel
λ thermal conductivity for centre of panel W/(m·K)
COP
λ (25years) average value of thermal conductivity over the first 25 W/(m⋅K)
COP,mean
years in use at centre of panel
λ , λ at centre of panel plus ageing W/(m⋅K)
COP 90/90,aged 90/90
λ expressed thermal conductivity including ageing, edge- W/(m⋅K)
D
effect and rounding rules
λ equivalent thermal conductivity including edge effects for W/(m·K)
eq ja
the specific joint assembly
λ mean value of thermal conductivity W/(m⋅K)
mean
λ one test result of thermal conductivity W/(m⋅K)
i
λ’ change of thermal conductivity with pressure W/(m⋅K⋅Pa)
p
λ’ change of thermal conductivity with time W/(m⋅K⋅s)
t
λ’ change of thermal conductivity with humidity W/(m⋅K)/mass-%
Χ
λ 90 % fractile with a confidence level of 90 % for the W/(m⋅K)
90/90
thermal conductivity
λ’ change of thermal conductivity with time at 23°C 50 % W/(m⋅K⋅a)
t, 23, 50
RH
’ change of thermal conductivity with time at 50°C 70 % W/(m⋅K⋅a)
λ
t, 50, 70
RH
λ(t) time-dependent thermal conductivity value W/(m⋅K)
λ(t) time dependent value of thermal conductivity at 23°C W/(m⋅K)
, 23, 50
50 % RH
λ* (t = 0) interpolated initial value of thermal conductivity W/(m⋅K)
σ compressive stress kPa
c
σ compressive strength kPa
m
σ tensile strength perpendicular to faces kPa
mt
σ compressive stress at 10 % deformation kPa
10
Φ relative humidity inside the VIP %
Φ’ change of relative humidity inside the VIP as function of (rel. humidity-
X
water content %)/(mass-%)
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Ψ linear thermal transmittance W/(m⋅K)
ψ linear thermal transmittance for the joints in the W/(m·K)
m
metering area
Abbreviated terms used in this document:
VIP vacuum insulation panel
COP centre of panel
AVCP assessment and verification of constancy of performance (previously named attestation of
conformity)
DoP declaration of performance
FPC factory production control
STP standard condition for temperature and pressure
RtF reaction to fire
ThIB thermal insulation for buildings
VOC volatile organic compounds
4 Characteristics
4.1 Reaction to fire
4.1.1 Determination
Reaction to fire classification shall be determined according to 5.2.1.
4.1.2 Expression
The reaction to fire shall be classified and expressed according to EN 13501-1:2018, Clause 11.
EXAMPLE Class E.
4.2 Propensity to undergo continuous smouldering
4.2.1 Determination
Propensity to undergo continuous smouldering of the core material shall be determined according to
5.2.2.
4.2.2 Evaluation and expression
Propensity to undergo continuous smouldering shall be expressed according to EN 16733:2016, Clause
11. If the test according to EN 16733:2016, Clause 11 has been passed, the result shall be expressed as
follows: “the product does not show propensity for continuous smouldering combustion”. If the test
according to EN 16733:2016, Clause 11 has been failed, the result shall be expressed as follows: “the
product shows propensity for continuous smouldering combustion”. If the assessment was not possible
according to EN 16733:2016, Clause 11, the result shall be expressed as follows: “assessment of the
propensity for continuous smouldering combustion is not possible”.
If a designation code is given, the following abbreviations shall be used:
— the product does not show propensity for continuous smouldering combustion: NoS
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— the product shows propensity for continuous smouldering combustion: S
— the assessment of the propensity for continuous smouldering combustion is not possible: ANP.
EXAMPLE NoS.
4.3 Release of VOCs
4.3.1 Determination
The release of VOCs into indoor air shall be determined according to 5.2.3.
4.3.2 Expression
The release of VOCs into indoor air shall be expressed as values in accordance with
EN 16516:2017+A1:2020.
4.4 Compressive strength
4.4.1 Determination
The compressive strength shall be determined according to 5.2.4.
4.4.2 Evaluation and expression
The compressive strength shall be expressed as a designation code CS(Y)i or CS(10)i, depending on the
result of the testing of 5.2.4. The test result i shall be rounded downwards in steps of 10 kPa.
EXAMPLE 1 CS(Y)120.
EXAMPLE 2 CS(10)120.
4.5 Tensile strength perpendicular to faces
4.5.1 Determination
The tensile strength perpendicular to faces, σ , shall be determined according to 5.2.5.
mt
4.5.2 Expression
The tensile strength perpendicular to faces, σ , shall be expressed as a designation code TRi. The value i
mt
of the tensile strength shall be rounded downwards in steps of 10 kPa.
EXAMPLE TR80.
4.6 Thermal resistance
4.6.1 Thermal resistance of the VIP
4.6.1.1 Determination
The thermal resistance shall be determined according to 5.2.6.1.
4.6.1.2 Expression
2
The thermal resistance shall be rounded downwards to the nearest 0,05 m ⋅K/W and be expressed as a
2
value in m ⋅K/W. It shall be expressed together with thermal conductivity rounded upwards in steps of
0,000 5 W/(m⋅K) and expressed as a value in W/(m⋅K). It shall be expressed together with the thickness
given as a value in mm.
2
EXAMPLE RD= 4,60 m ⋅K/W (λD= 0,0065 W/(m⋅K), d= 30 mm).
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4.6.2 Thermal resistance of the ventilated VIP under ambient pressure due to damage
4.6.2.1 Determination
The thermal resistance of the ventilated VIP under ambient pressure due to damage shall be
determined according to 5.2.6.2.
4.6.2.2 Expression
The thermal resistance of the ventilated VIP under ambient pressure due to damage shall be rounded
2 2
downwards to the nearest 0,05 m ⋅K/W and be expressed as a value in m ⋅K/W. It shall be expressed
together with the thickness given as a value in mm.
2
EXAMPLE R = 1,00 m ⋅K/W (d = 20 mm).
ambient, eff ambient
4.7 Durability aspects
4.7.1 Dimensional stability under specified temperature and humidity conditions
4.7.1.1 Determination
Dimensional stability under specified temperature or under specified temperature and humidity
conditions shall be determined according to 5.2.7.1.
4.7.1.2 Expression
Dimensional stability under specified temperature or under specified temperature and humidity
conditions shall be expressed as a code in the following way: If the relative changes in core length and
core width do not exceed 1 % and the relative reduction in thickness does not exceed 3 %, the code
shall be DS. Otherwise, the code shall be NoDS .
EXAMPLE DS.
4.7.2 Dimensional stability under specified compressive load and temperature conditions
4.7.2.1 Determination
Dimensional stability under specified compressive load and temperature conditions shall be
determined according to 5.2.7.2.
4.7.2.2 Expression
Dimensional stability under specified compressive load and temperature conditions shall be expressed
as a code in the following way: If the relative changes in thickness do not exceed 3 %, the code shall be
DSC. Otherwise, the code shall be NoDSC.
EXAMPLE DSC.
4.7.3 Compressive creep
4.7.3.1 Determination
The compressive creep shall be determined according to 5.2.7.3.
4.7.3.2 Expression
Compressive creep, X , shall be expressed as a designation code CC(i /i /y)σ together with the total
ct 1 2 c
thickness reduction, X . The value of the total thickness reduction i and the value of compressive creep
t 1
i after y years shall be given in steps of 0,1 mm and at the expressed stress σ .
2 c
EXAMPLE CC(2,5/2/10)50.
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oSIST prEN 17140:2021
prEN 17140:2021 (E)
5 Assessment methods
5.1 General
5.1.1 Sampling
Unlike other insulating materials, VIP cannot be cut to the sizes required by the test standards. They
shall be produced in the sizes stated in Table 1.
5.1.2 Conditioning
Conditioning of the test specimens shall be at least 24 h at (23 ± 5) °C unless otherwise specified in the
test standard. In case of dispute, the test specimens shall be stored at (23 ± 2) °C and (50 ± 5) % relative
humidity for at least 24 h prior to testing.
Table 1 — Characteristics and test specimens
Clause Test specimen
length and width
No Title
5.2.1 Reaction to fire See Annex H
Propensity to undergo continuous 800 x 300
5.2.2
smouldering
5.2.3 Release of VOCs Full-size
5.2.4 Compressive strength ≥ 200
5.2.5 Tensile strength perpendicular to faces ≥ 200
Thermal resistance and thermal ≥ 300
5.2.6
conductivity of the VIP
Inner pressure at least 24 h after ≥ 300
5.2.6
production
5.2.6 Length and width Full-size
5.2.6 Squareness on length and width Full-size
5.2.6 Flatness Full-size
5.2.6 Thickness Full-size
Dimensional stability according to ≥ 200
5.2.7
specified temperature conditions
Deformation under specified compressive ≥ 200
5.2.7
load and temperature conditions
5.2.7 Compressive creep ≥ 200
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oSIST prEN 17140:2021
prEN 17140:2021 (E)
5.2 Test methods
5.2.1 Reaction to fire
Reaction to fire classification shall be determined using the test standards referred to within
EN 13501-1:2018, Clause 8 for the claimed class. For specific tests, the mounting and fixing procedure
shall be as given in Annex H.
5.2.2 Propensity to undergo continuous smouldering
The propensity to undergo continuous smouldering of the VIP shall be tested on the core material. The
material shall be tested according to EN 16733:2016. The following conditions and parameters shall be
considered within the tests:
— organic content
...
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