SIST EN 17101:2018
(Main)Thermal insulation products for buildings - Methods of identification and test methods for one-component PU adhesive foam for External Thermal Insulation Composite Systems (ETICS)
Thermal insulation products for buildings - Methods of identification and test methods for one-component PU adhesive foam for External Thermal Insulation Composite Systems (ETICS)
This European Standard specifies methods of identification and test methods for the performance evaluation of one-component PU foams used as adhesive according to the ETICS specification (see WI 00088330).
Other foams are not covered by this European Standard.
Wärmedämmstoffe für Gebäude - Methoden der Identifizierung und Testmethoden für Ein-Komponenten-PU-Klebstoffschaum für Wärmedämmverbundsysteme (WDVS)
Diese Europäische Norm bestimmt Nachweisverfahren und Prüfverfahren für die Leistungsbeurteilung von Einkomponenten-PU-Schäumen (1K PU Schäume), die nach ETICS Spezifikation (siehe WI00088330) als Kleber verwendet werden.
Andere Schäume sind von dieser Europäischen Norm nicht abgedeckt.
Produits isolants thermiques pour le bâtiment - Méthodes d'identification et méthodes d'essai des mousses PU adhésives monocomposant pour systèmes d'isolation thermique extérieure par enduit sur isolant (ETICS)
La présente Norme européenne spécifie des méthodes d'identification et des méthodes d'essai pour l'évaluation des performances des mousses PU monocomposant utilisées comme colles conformément à la spécification des ETICS (voir le WI00088330).
Les autres mousses ne sont pas couvertes par la présente Norme européenne.
Toplotnoizolacijski proizvodi za stavbe - Metode za identifikacijo in metode preskušanja enokomponentne poliuretanske (PU) lepilne pene za kontaktne fasadne toplotnoizolacijske sisteme (ETICS)
Ta evropski standard določa metode za identifikacijo in metode preskušanja za oceno zmogljivosti enokomponentnih poliuretanskih (PU) lepilnih pen v skladu s specifikacijo za zunanje sestavljene toplotnoizolacijske sisteme (ETICS) (glejte WI 00088330).
Druge pene niso zajete v tem evropskem standardu.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 17101:2018
01-oktober-2018
Toplotnoizolacijski proizvodi za stavbe - Metode za identifikacijo in metode
preskušanja enokomponentne poliuretanske (PU) lepilne pene za kontaktne
fasadne toplotnoizolacijske sisteme (ETICS)
WLRQDQGWHVWPHWKRGVIRU7KHUPDOLQVXODWLRQSURGXFWVIRUEXLOGLQJV0HWKRGVRILGHQWLILFD
PSRVLWHRQHFRPSRQHQW38DGKHVLYHIRDPIRU([WHUQDO7KHUPDO,QVXODWLRQ&R
6\VWHPV (7,&6
Wärmedämmstoffe für Gebäude - Methoden der Identifizierung und Testmethoden für
Ein-Komponenten-PU-Klebstoffschaum für Wärmedämmverbundsysteme (WDVS)
Produits isolants thermiques pour le bâtiment - Méthodes d'identification et méthodes
d'essai des mousses PU adhésives monocomposant pour systèmes d'isolation
thermique extérieure par enduit sur isolant (ETICS)
Ta slovenski standard je istoveten z: EN 17101:2018
ICS:
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
SIST EN 17101:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 17101:2018
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SIST EN 17101:2018
EN 17101
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2018
EUROPÄISCHE NORM
ICS 91.100.60
English Version
Thermal insulation products for buildings - Methods of
identification and test methods for one-component PU
adhesive foam for External Thermal Insulation Composite
Systems (ETICS)
Produits isolants thermiques pour le bâtiment - Wärmedämmstoffe für Gebäude - Methoden der
Méthodes d'identification et méthodes d'essai des Identifizierung und Testmethoden für Ein-
mousses PU adhésives monocomposant pour systèmes Komponenten-PU-Klebstoffschaum für
d'isolation thermique extérieure par enduit sur isolant Wärmedämmverbundsysteme (WDVS)
(ETICS)
This European Standard was approved by CEN on 23 April 2018.
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 CEN-CENELEC Management Centre 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17101:2018 E
worldwide for CEN national Members.
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SIST EN 17101:2018
EN 17101:2018 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and units . 5
5 Test methods . 6
5.1 General . 6
5.2 Common rules applicable to all tests . 7
5.2.1 General . 7
5.3 Foam density . 7
5.3.1 Test apparatus and materials . 7
5.3.2 Test procedure (see Figures 1 to 3) . 8
5.3.3 Calculation of results . 9
5.4 Tack free time . 9
5.4.1 Test apparatus and materials . 9
5.4.2 Test procedure (see Figures 1 to 3) . 9
5.4.3 Calculation of results . 10
5.5 Cutting time . 10
5.5.1 Test apparatus and materials . 10
5.5.2 Test procedure . 11
5.5.3 Calculation of results . 11
5.6 Post application expansion behaviour . 12
5.6.1 Test apparatus and materials . 12
5.6.2 Test procedure . 13
5.6.3 Calculation of test results . 13
5.7 Cohesion strength . 15
5.7.1 Test apparatus and materials . 15
5.7.2 Test procedure . 16
5.7.3 Calculation of test results . 19
5.8 Shear strength . 20
5.8.1 Test apparatus and materials . 20
5.8.2 Conditioning . 20
5.8.3 Preparation of the three test specimen . 20
5.8.4 Test procedure . 21
5.8.5 Calculation of test results . 22
6 Test report . 23
2
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SIST EN 17101:2018
EN 17101:2018 (E)
European foreword
This document (EN 17101:2018) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
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 March 2019, and conflicting national standards shall
be withdrawn at the latest by March 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United Kingdom.
3
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SIST EN 17101:2018
EN 17101:2018 (E)
Introduction
This European Standard covers moisture curing one-component PU foams (1C-PU foams) dispensed
from pressurized containers and used as adhesive foam.
4
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SIST EN 17101:2018
EN 17101:2018 (E)
1 Scope
This document specifies methods of identification and test methods for the performance evaluation of
one-component PU foams used as adhesive foam.
Other foams are not covered by this document.
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 312, Particleboards — Specifications
EN ISO 9229, Thermal insulation — Vocabulary (ISO 9229)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
PU adhesive foam
moisture curing one component polyurethane (PU) foam dispensed from pressurised containers
3.2
foam density
density of the free expanded and cured PU adhesive foam
3.3
tack free time
time period between dispensing and formation of an adhesion-free surface of a PU adhesive foam
3.4
cutting time
time period between dispensing of the PU adhesive foam and when it can be clean cut, without
destroying the foam structure
3.5
post application expansion behaviour
increase of the distance between the substrate and the applied insulation board from dispensing of the
PU adhesive foam until full curing is achieved
4 Symbols and units
For the purposes of this document, the following symbols and units apply.
b is the width in mm
d is the thickness in mm
5
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SIST EN 17101:2018
EN 17101:2018 (E)
3
ρ is the foam density in kg/m
a
m is the mass in g
V is the volume level of water before the specimen immersion in ml
0
V is the volume level of water and specimen following immersion in ml
1
t is the time in min
F is the force in N
2
S is the area in mm
τ is the shear strength in kPa
5 Test methods
5.1 General
Measureable attributes of polyurethane adhesive foam are:
— foam density;
— tack-free time;
— cutting time;
— post application expansion behaviour;
— cohesion strength;
— shear strength;
Table 1 provides the clause number for each test method, specimen sizes, conditioning and test
conditions and the number of measurements required to evaluate each characteristic.
6
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SIST EN 17101:2018
EN 17101:2018 (E)
Table 1 — Test methods, test specimens and conditions
Clause Dimensions of the test Minimum number of Conditioning and
specimen measurements to test
obtain one test result temperature/
relative humidity
5.3 — Foam density Diameter strings: (20 to 5
30) mm
Length: 200 mm ± 15 mm
5.4 — Tack free time Diameter (20 to 30) mm 3
5.5 — Cutting time Diameter (20 to 25) mm 3
(23 ± 2) °C
5.6 — Post (500 ± 2) mm × (500 ± 2) mm 1 (Derived from 6 time
application interval measurements) (50 ± 5) % r.h.
Spacers: 8 mm ± 0,5 mm thick
expansion behaviour
5.7 — Cohesion (50 ± 1) mm × (50 ± 1) mm 5
strength
Spacers: 8 mm ± 0,5 mm thick
5.8 — Shear strength (100 ± 1) mm × (100 ± 1) mm 3
Spacers: 8 mm ± 0,5 mm thick
5.2 Common rules applicable to all tests
5.2.1 General
a) Canisters from the same batch shall be used to evaluate all properties, as detailed in 5.3 to 5.8.
b) The application of PU adhesive foams for testing shall be performed using the adapter or the gun as
specified by the test sponsor.
c) The test canister(s) shall be conditioned at (23 ± 2) °C, (50 ± 5) % r.h. for at least 24 h prior to the
test.
d) Each canister shall be shaken vigorously at least 20 times just before application and the first
(50 ± 5) g of PU adhesive foam shall be discarded.
e) The test specimen shall be prepared and conditioned at (23 ± 2) °C, (50 ± 5) % r.h.
f) All tests shall be performed at (23 ± 2) °C, (50 ± 5) % r.h.
5.3 Foam density
5.3.1 Test apparatus and materials
5.3.1.1 Canister(s), with PU adhesive foam for evaluation.
5.3.1.2 Application substrate, e.g. PolyEthylene-foil, paper or cardboard.
5.3.1.3 Sharp and clean cutting knife, e.g. scalpel or craft knife with thin blade.
5.3.1.4 Balance, with an accuracy of 0,1 g.
5.3.1.5 Measuring cylinder graduated in increments no greater than 10 ml.
7
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SIST EN 17101:2018
EN 17101:2018 (E)
5.3.1.6 Tap water.
5.3.2 Test procedure (see Figures 1 to 3)
a) Five cylindrically shaped strings of PU adhesive foam, each with a diameter between 20 mm to
30 mm and a length of approximately 200 mm are dispensed onto the application substrate at a
rate of 50 mm/s to 100 mm/s. The nozzle should be at a distance of (10 ± 5) mm above the
substrate to avoid touching the dispensed foam.
b) After a minimum curing time of 24 h, the strings are trimmed at both ends to an overall length of
between 100 mm to 150 mm to form the test specimens.
c) The mass of each test specimen m shall be measured in grams with an accuracy of 0,1 g.
d) The measuring cylinder shall be filled to approximately 50 % of its capacity with tap water and the
reference volume V shall be recorded.
0
e) Each test specimen shall be submerged below the water surface in the measuring cylinder using the
blade of the cutting knife. The increased volume V shall be recorded immediately.
1
Figure 1 — Dispensed strings
Key
a overall length of the trimmed strings between 100 mm and 150 mm (see b))
Figure 2 — Trimmed strings
8
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SIST EN 17101:2018
EN 17101:2018 (E)
Figure 3 — Measurement
5.3.3 Calculation of results
The density of each of the five test specimens shall be determined using the following formula:
m
ρ × 1000 (1)
a
VV−
10
where
ρ is the foam density in kg/m3;
a
m is the mass of the specimen in g;
V is the volume level of water before the specimen immersion in ml;
0
V is the volume level of water and specimen following immersion in ml.
1
3 3
Each measurement is expressed in kg/m to an accuracy of 0,1 kg/m . The test result is the mean value
of five measurements.
3
If any measurement deviates more than ± 5 kg/m from the mean value, the test result shall be
discarded.
5.4 Tack free time
5.4.1 Test apparatus and materials
5.4.1.1 Canister, with PU adhesive foam for evaluation.
5.4.1.2 Application substrate, e.g. PolyEthylene-foil, paper or cardboard.
5.4.1.3 Small rod or tube made of PolyEthylene, e.g. a straw.
5.4.1.4 Stopwatch or clock capable of measuring in seconds.
5.4.2 Test procedure
a) One cylindrically shaped string of PU adhesive foam with a diameter of 20 mm to 30 mm is
dispensed onto the application substrate at a rate of 50 mm/s to 100 mm/s. The nozzle should be a
distance of (10 ± 5) mm above the substrate to avoid touching the dispensed foam. Record the time
at which dispensing started (t ).
0
b) The surface of the string shall be touched gently with the side of the small PolyEthylene rod/tube
without penetrating the skin (see Figure 4).
9
=
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SIST EN 17101:2018
EN 17101:2018 (E)
c) For every contac
...
SLOVENSKI STANDARD
oSIST prEN 17101:2017
01-maj-2017
Toplotnoizolacijski proizvodi za stavbe - Poliuretanska (PU) adhezivna pena za
zunanje sestavljene toplotnoizolacijske sisteme (ETICS)
Thermal insulation products for buildings - PU adhesive foam for External Thermal
Insulation Composite Systems (ETICS)
Wärmedämmstoffe für Gebäude - PU-Klebstoffschaum für Wärmedämmverbundsysteme
(WDVS)
Produits isolants thermiques pour le bâtiment - Mousse PU adhésive pour systèmes
d'isolation thermique extérieure par enduit sur isolant (ETICS)
Ta slovenski standard je istoveten z: prEN 17101
ICS:
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
oSIST prEN 17101:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17101:2017
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oSIST prEN 17101:2017
DRAFT
EUROPEAN STANDARD
prEN 17101
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 91.100.60
English Version
Thermal insulation products for buildings - PU adhesive
foam for External Thermal Insulation Composite Systems
(ETICS)
Produits isolants thermiques pour le bâtiment - Wärmedämmstoffe für Gebäude - PU-Klebstoffschaum
Mousse PU adhésive pour systèmes d'isolation für Wärmedämmverbundsysteme (WDVS)
thermique extérieure par enduit sur isolant (ETICS)
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, 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 17101:2017 E
worldwide for CEN national Members.
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and units . 6
5 Test methods . 6
5.1 General . 6
5.2 Common rules applicable to all tests . 7
5.2.1 General . 7
5.3 Foam density . 7
5.3.1 Test apparatus and materials . 7
5.3.2 Test procedure (see Figures 1 to 3) . 8
5.3.3 Calculation of results . 9
5.4 Tack Free Time. 9
5.4.1 Test apparatus and materials . 9
5.4.2 Test procedure (see Figures 1 to 3) . 9
5.4.3 Calculation of results . 10
5.5 Cutting Time . 10
5.5.1 Test apparatus and materials . 10
5.5.2 Test procedure . 10
5.5.3 Calculation of results . 11
5.6 Post Application Expansion Behaviour . 12
5.6.1 Test apparatus and materials . 12
5.6.2 Test procedure . 13
5.6.3 Calculation of test results . 13
5.7 Cohesion strength (Pull-off) test . 15
5.7.1 Test apparatus and materials . 15
5.7.2 Tensile testing machine . 15
5.7.3 Calculation of test results . 19
5.8 Shear strength . 19
5.8.1 Test apparatus and materials . 19
5.8.2 Conditioning . 19
5.8.3 Preparation of the three test specimen . 19
5.8.4 Test Procedure . 20
5.8.5 Calculation of test results . 21
6 Test report . 22
Bibliography . 23
2
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
European foreword
This document (prEN 17101:2017) 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.
3
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
Introduction
This European Standard covers moisture curing one-component PU foams (1C-PU foams) dispensed
from pressurized containers and used as adhesive according to the ETICS specification (see
WI 00088330).
4
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
1 Scope
This European Standard specifies methods of identification and test methods for the performance
evaluation of one-component PU foams used as adhesive according to the ETICS specification (see
WI 00088330).
Other foams are not covered by this European Standard.
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 312, Particleboards - Specifications
EN ISO 139, Textiles - Standard atmospheres for conditioning and testing (ISO 139)
EN ISO 9229, Thermal insulation - Vocabulary (ISO 9229)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229 and the following
apply.
3.1
PU adhesive foam
moisture curing one component polyurethane (PU) foam dispensed from pressurised containers
3.2
foam density
density of the free expanded and cured PU adhesive foam
3.3
tack free time
time period between dispensing and formation of an adhesion-free surface of a PU adhesive foam
3.4
cutting time
time period between dispensing of the PU adhesive foam and when it can be clean cut, without
destroying the foam structure
3.5
post application expansion behaviour
increase of the distance between the substrate and the applied insulation board from dispensing of the
PU adhesive foam until full curing is achieved
5
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
4 Symbols and units
For the purposes of this document, the following symbols and units apply.
b is the width in mm
d is the thickness in mm
3
ρ is the apparent density in kg/m
a
m is the mass in g
V is the volume level of water before the specimen immersion in ml
0
V is the volume level of water and specimen following immersion in ml
1
t is the time in min
F is the force in N
2
S is the area in mm
τ is the shear strength in kPa
5 Test methods
5.1 General
Measureable attributes of polyurethane adhesive foam for use with External Thermal Insulation
Composite Systems (ETICS) are:
— post foaming density (density);
— time period after foaming for a tack-free surface to form (tack-free time);
— time period between foaming and ability to be clean cut (cutting time);
— post expansion behaviour;
— cohesion;
— shear strength;
Table 1 provides the clause number for each test method, specimen sizes, conditioning and test
conditions and the number of measurements required to evaluate each characteristic.
6
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
Table 1 — Test methods, test specimens and conditions
Clause Dimensions of the test Minimum Conditioning and test
specimen number of temperature/relative
measurements to humidity
obtain one test
result
5.3 - Foam density Diameter strings: (20 to 30) mm 5 (23 ± 2) °C
Length: 200 mm (50 ± 5) r.h.
5.4 - Tack Free Time Diameter (20 to 30) mm 1 (23 ± 2) °C
(50 ± 5) r.h.
5.5 - Cutting Time Diameter (20 to 25) mm 1 (23 ± 2) °C
(50 ± 5) r.h.
5.6 - Post Application (500 × 500) mm 1 (Derived from 6 (23 ± 2) °C
Expansion Behaviour time interval
Spacers: 8 mm thick (50 ± 5) r.h.
measurements)
5.7 - Cohesion strength (50 × 50) mm 5 (23 ± 2) °C
(Pull-off) test
Spacers: 8 mm thick (50 ± 5) r.h.
5.8 - Shear strength (100 × 100) mm 3 (23 ± 2) °C
Spacers: 8 mm thick (50 ± 5) r.h.
5.2 Common rules applicable to all tests
5.2.1 General
a) Canisters from the same batch shall be used to evaluate all properties, as detailed in 5.3 to 5.8.
b) The application of PU adhesive foams for testing shall be performed using the adapter or the gun as
specified by the test sponsor.
c) The test canister(s) shall be conditioned at (23 ± 2) °C, (50 ± 5) % r.h. for at least 24 h prior to the
test.
d) Each canister shall be shaken vigorously at least 20 times before application and the first (50 ± 5) g
of PU adhesive foam shall be discarded.
e) All tests shall be performed at (23 ± 2) °C, (50 ± 5) % r.h.
5.3 Foam density
5.3.1 Test apparatus and materials
5.3.1.1 Canister(s), with PU adhesive foam for evaluation.
5.3.1.2 Application substrate, e.g. PE-foil, paper or cardboard.
5.3.1.3 Sharp and clean cutting knife, e.g. scalpel or craft knife with thin blade.
5.3.1.4 Balance, with an accuracy of 0,1 g.
7
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
5.3.1.5 Measuring cylinder graduated in increments no greater than 10 ml.
5.3.1.6 Tap water.
5.3.2 Test procedure (see Figures 1 to 3)
a) Five cylindrically shaped strings of PU adhesive foam, each with a diameter between 20 mm to
30 mm and a length of approximately 200 mm are dispensed onto the application substrate at a
rate of 50 mm/s to 100 mm/s. The nozzle should be at a distance of (10 ± 5) mm above the
substrate to avoid touching the dispensed foam.
b) After a minimum curing time of 24 h, the strings are trimmed at both ends to an overall length of
between 100 mm to 150 mm.
c) The mass of each sample m shall be measured in grams with an accuracy of 0,1 g.
d) The measuring cylinder shall be filled to approximately 50 % of its capacity with tap water and the
reference volume V shall be recorded.
0
e) Each sample shall be submerged below the water surface in the measuring cylinder using the blade
of the cutting knife. The increased volume V shall be recorded immediately.
1
Figure 1 — Dispensed strings
Key
a overall length of the trimmed strings (see b))
Figure 2 — Trimmed strings
8
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oSIST prEN 17101:2017
prEN 17101:2017 (E)
Figure 3 — Measurement
5.3.3 Calculation of results
The density of each of the five foam samples shall be determined using the following formula:
m
ρ × 1 000 (1)
a
VV−
10
where
3
ρ is the apparent density in kg/m ;
a
m is the mass of the specimen in g;
V is the volume level of water before the specimen immersion in ml;
0
V is the volume level of water and specimen following immersion in ml.
1
3 3
Each measurement is expressed in kg/m to an accuracy of 0,1 kg/m . The test result is the mean value
of five measurements.
3
If any individual measurement deviates more than ±5 kg/m from the mean value, the test result shall
be discarded.
5.4 Tack Free Time
5.4.1 Test apparatus and materials
5.4.1.1 Canister, with PU adhesive foam for evaluation.
5.4.1.2 Application substrate, e.g. PE-foil, paper or cardboard.
5.4.1.3 Small rod or tube made of PE, e.g. a straw.
5.4.1.4 Stopwatch (or clock capable of measuring in seconds).
5.4.2 Test procedure (see Figures 1 to 3)
a) One cylindrically shaped string of PU adhesive foam with a diameter of 20 mm to 30 mm is
dispensed onto the application substrate at a rate of 50 mm/s to 100 mm/s. The nozzle should be a
distance of (10 ± 5) mm above the substrate to avoid touching the dispensed foam. Record the time
at which dispensing started (t0).
b) The surface of the string shall be touched gently with the side of the small PE rod/tube without
penetrating the skin (see Figure 4).
9
=
...
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