SIST EN ISO 16534:2020

SLOVENSKI STANDARD
oSIST prEN ISO 16534:2019
01-maj-2019
7RSORWQRL]RODFLMVNLSURL]YRGL]DXSRUDERYJUDGEHQLãWYX'RORþDQMHOH]HQMDSRG
WODþQRREUHPHQLWYLMR,62',6
Thermal insulating products for building applications - Determination of compressive
creep (ISO/DIS 16534:2019)
Wärmedämmstoffe für das Bauwesen - Bestimmung des Langzeit-Kriechverhaltens bei
Druckbeanspruchung (ISO/DIS 16534:2019)
Produits isolants thermiques destinés aux applications du bâtiment - Détermination du
fluage en compression (ISO/DIS 16534:2019)
Ta slovenski standard je istoveten z: prEN ISO 16534
ICS:
91.100.60 0DWHULDOL]DWRSORWQRLQ Thermal and sound insulating
]YRþQRL]RODFLMR materials
oSIST prEN ISO 16534:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 16534:2019

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oSIST prEN ISO 16534:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 16534
ISO/TC 163/SC 1 Secretariat: DIN
Voting begins on: Voting terminates on:
2019-03-19 2019-06-11
Thermal insulating products for building applications —
Determination of compressive creep
Produits isolants thermiques destinés aux applications du bâtiment — Détermination du fluage en
compression
ICS: 91.100.60
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 16534:2019(E)
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. ISO 2019

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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved

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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Apparatus . 3
6 Test specimens. 4
6.1 Selection of test specimens . 4
6.2 Dimensions of test specimens . 4
6.3 Number of test specimens . 4
6.4 Preparation of test specimens . 4
6.5 Conditioning of test specimens . 5
7 Procedure. 5
7.1 Test conditions . 5
7.2 Stress selection . 5
7.3 Test procedure . 5
7.4 Duration of test . 7
8 Calculation and expression of results . 7
9 Accuracy of measurement . 7
10 Test report . 8
Annex A (normative) Calculation method . 9
Annex B (informative) Example of a linear regression analysis .12
Bibliography .16
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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 16534 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in
the built environment, Subcommittee SC 1, Test and measurement methods.
ISO 16534 includes the original EN 1606 prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, with the following clauses modified to reflect the conditions for
tropical countries:
— Clause 6.5: Conditioning of test specimens;
— Clause 7.1: Test conditions;
— Clause 10: Test report.
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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

Introduction
ISO 16534 is one of a series of existing European Standards on test methods which were adopted by
ISO. This group of International Standards comprises the following group of interrelated standards:
ISO Title Respective
EN
standard
ISO 12344 Thermal insulating products for building applications — Determination of EN 12089
bending behaviour
ISO 12968 Thermal insulation products for building applications — Determination of the EN 13495
pull-off resistance of external thermal insulation composite systems (ETICS)
(foam block test)
ISO 29465 Thermal insulating products for building applications — Determination of EN 822
length and width
ISO 29466 Thermal insulating products for building applications — Determination of EN 823
thickness
ISO 29467 Thermal insulating products for building applications — Determination of EN 824
squareness
ISO 29468 Thermal insulating products for building applications — Determination of EN 825
flatness
ISO 29469 Thermal insulating products for building applications — Determination of EN 826
compression behaviour
ISO 29470 Thermal insulating products for building applications — Determination of EN 1602
the apparent density
ISO 29471 Thermal insulating products for building applications — Determination of di- EN 1603
mensional stability under constant normal laboratory conditions (23 °C/50 %
relative humidity)
ISO 29472 Thermal insulating products for building applications — Determination of EN 1604
dimensional stability under specified temperature and humidity conditions
ISO 29764 Thermal insulating products for building applications — Determination of EN 1605
deformation under specified compressive load and temperature conditions
ISO 29765 Thermal insulating products for building applications — Determination of EN 1607
tensile strength perpendicular to faces
ISO 29766 Thermal insulating products for building applications — Determination of EN 1608
tensile strength parallel to faces
ISO 29767 Thermal insulating products for building applications — Determination of EN 1609
short-term water absorption by partial immersion
ISO 29768 Thermal insulating products for building applications — Determination of EN 12085
linear dimensions of test specimens
ISO 29769 Thermal insulating products for building applications — Determination of EN 12430
behaviour under point load
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ISO 29770 Thermal insulating products for building applications — Determination of EN 12431
thickness for floating-floor insulating products
ISO 29771 Thermal insulating materials for building applications — Determination of EN 13820
organic content
ISO 29803 Thermal insulation products for building applications — Determination of the EN 13497
resistance to impact of external thermal insulation composite systems (ETICS)
ISO 29804 Thermal insulation products for building applications — Determination of EN 13494
the tensile bond strength of the adhesive and of the base coat to the thermal
insulation material
ISO 29805 Thermal insulation products for building applications — Determination of EN 13496
the mechanical properties of glass fibre meshes
ISO 16534 Thermal insulating products for building applications — Determination of EN 1606
compressive creep
ISO 16535 Thermal insulating products for building applications — Determination of EN 12087
long-term water absorption by immersion
ISO 16536 Thermal insulating products for building applications — Determination of EN 12088
long-term water absorption by diffusion
ISO 16537 Thermal insulating products for building applications — Determination of EN 12090
shear behaviour
ISO 16546 Thermal insulating products for building applications —Determination of EN 12091
freeze–thaw resistance
ISO 16544 Thermal insulating products for building applications — Conditioning to EN 12429
moisture equilibrium under specified temperature and humidity conditions
ISO 16545 Thermal insulating products for building applications — Determination of EN 13793
behaviour under cyclic loading
A further group of existing European Standards on test methods for products used to insulate building
equipment and industrial installations comprises the following group of interrelated International
Standards:
ISO 12623 Thermal insulating products for building equipment and industrial installa- EN 13472
tions — Determination of short-term water absorption by partial immersion
of preformed pipe insulation
ISO 12624 Thermal insulating products for building equipment and industrial installa- EN 13468
tions — Determination of trace quantities of water soluble chloride, fluoride,
silicate, sodium ions and pH
ISO 12628 Thermal insulating products for building equipment and industrial installa- EN 13467
tions — Determination of dimensions, squareness and linearity of preformed
pipe insulation
ISO 12629 Thermal insulating products for building equipment and industrial installa- EN 13469
tions — Determination of water vapour transmission properties of preformed
pipe insulation
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oSIST prEN ISO 16534:2019
DRAFT INTERNATIONAL STANDARD ISO/DIS 16534:2019(E)
Thermal insulating products for building applications —
Determination of compressive creep
1 Scope
This document specifies the equipment and test method for determining the compressive creep of
specimens under various conditions of stress.
This document is applicable to thermal insulating products.
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.
ISO 29469, Thermal insulating products for building applications — Determination of compression
behaviour
ISO 29768, Thermal insulating products for building applications — Determination of linear dimensions of
test specimens
ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results — Part 2: Basic method
for the determination of repeatability and reproducibility of a standard measurement method
3 Terms and definitions
For the purposes of this document, the following definitions apply.
3.1
thickness
linear dimension measured perpendicular to the planes of length and widthd is the original product
thickness;d is the thickness of the test specimen;d is the thickness of the test specimen under the
S L
basic compressive stress of the loading device ('deadweight');d is the thickness of the test specimen
0
60 s after the beginning of the loading process;d is the thickness of the test specimen at a given time, t
t
3.2
compressive stress
σ
c
ratio of the compressive force to the initial cross sectional surface area of the test specimen
3.3
deformation
X
reduction in thickness of the test specimen
3.4
relative deformation
ε
ratio of the deformation of the test specimen X, and its thickness d , measured in the direction of loading
s
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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

3.5
compressive creep
X
ct
increase in deformation of the test specimen over time whilst under a constant stress, at specified
conditions of temperature and humidity
X = X − X
ct t 0
where
X is the deformation at time t;
t
X is the initial deformation (after 60 s from the beginning of loading)
0
An illustration of the different thicknesses and deformations is given in Figure 1
Key
d original product thickness
d initial thickness of the test specimen
s
d thickness of the test specimen under the basic compressive stress of the loading device (‘dead weight’)
L
d thickness of the test specimen 60 s after the beginning of the loading process
0
X the initial deformation (after 60 s from the beginning of loading).
0
X increase in deformation of the test specimen over time while under a constant stress, at specified conditions
ct
of temperature and humidity
X total the deformation at selected time t
t 3
t Time when dead wright is applied
1
t Time when selected load is uniformly applied
2
t Deformation at selected time
3
In the illustration, d is used as a reference value for deformation measurements. If d is used as the reference value,
L s
the illustration can be used, omitting the column for d (see 7.3).
L
Figure 1 — Illustration of the different thicknesses and deformations
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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

4 Principle
The compressive creep is determined by measuring the increase in deformation of a test specimen
under constant compressive stress and specified conditions of temperature, humidity and time.
5 Apparatus
5.1 Loading device, consisting of two flat plates, one of which shall be movable, arranged so that they
compress the test specimen in a vertical direction. The movable plate shall be guided in such a manner as
to be self-aligning. The plates shall be capable of being loaded smoothly and without distortion so that,
during the test, the static stress does not change by more than ± 5 %.
5.2 Measuring device (e.g. dial gauge), capable of determining the distance between the two plates,
i.e. the deformation of the test specimen, to an accuracy of 0,01 mm.
5.3 Suitable damping measures, to ensure the effects of external vibration are minimized (e.g. a
substantial foundation and anchoring of the apparatus support).
Examples of the testing apparatus are given in Figure 2.
a) b)
Key
1 displacement transducer or dial gauge 4 test specimen
2 loading bridge 5 support beam
3 load distribution plate (movable, self-aligning) 6 loading by weights
Figure 2 — Examples of test apparatus
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oSIST prEN ISO 16534:2019
ISO/DIS 16534:2019(E)

6 Test specimens
6.1 Selection of test specimens
The test specimens for determining the compressive creep shall be taken from the same sample, with
the same preparation as the test specimens used for the compression test as specified in EN 826.
The method for selecting the test specimens shall be as specified in the relevant product standard.
NOTE In the absence of a product standard or any other technical specification, the method for selection of
the test specimens can be agreed between parties.
6.2 Dimensions of test specimens
The thickness of test specimens shall be equal to the orig
...