EN ISO 16535:2019

SLOVENSKI STANDARD
01-oktober-2019
Nadomešča:
SIST EN 12087:2013
Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje
dolgotrajnega vpijanja vode s potapljanjem (ISO 16535:2019)
Thermal insulating products for building applications - Determination of long- term water
absorption by immersion (ISO 16535:2019)
Wärmedämmstoffe für das Bauwesen - Bestimmung der Wasseraufnahme bei
langzeitigem Eintauchen (ISO 16535:2019)
Produits isolants thermiques destinés aux applications du bâtiment - Détermination de
l'absorption d'eau à long terme par immersion (ISO 16535:2019)
Ta slovenski standard je istoveten z: EN ISO 16535:2019
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16535
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2019
EUROPÄISCHE NORM
ICS 91.100.60 Supersedes EN 12087:2013
English Version
Thermal insulating products for building applications -
Determination of long-term water absorption by
immersion (ISO 16535:2019)
Produits isolants thermiques destinés aux applications Wärmedämmstoffe für das Bauwesen - Bestimmung
du bâtiment - Détermination de l'absorption d'eau à der Wasseraufnahme bei langzeitigem Eintauchen (ISO
long terme par immersion (ISO 16535:2019) 16535:2019)
This European Standard was approved by CEN on 21 June 2019.

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, 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16535:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 16535:2019) has been prepared by Technical Committee ISO/TC 163 "Thermal
performance and energy use in the built environment" in collaboration with 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 January 2020, and conflicting national standards shall
be withdrawn at the latest by January 2020.
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.
This document supersedes EN 12087:2013.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
Endorsement notice
The text of ISO 16535:2019 has been approved by CEN as EN ISO 16535:2019 without any modification.

INTERNATIONAL ISO
STANDARD 16535
Second edition
2019-06
Thermal insulating products
for building applications —
Determination of long-term water
absorption by immersion
Produits isolants thermiques destinés aux applications du bâtiment —
Détermination de l'absorption d'eau à long terme par immersion
Reference number
ISO 16535:2019(E)
©
ISO 2019
ISO 16535:2019(E)
© 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 16535:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
4.1 Method 1: Partial immersion . 1
4.2 Method 2: Total immersion . 2
5 Apparatus . 2
6 Test specimens. 4
6.1 Dimensions of test specimens . 4
6.2 Number of test specimens . 4
6.3 Preparation of test specimens . 4
6.4 Conditioning of test specimens . 4
7 Procedure. 5
7.1 Test conditions . 5
7.2 Test procedure . 5
7.2.1 Long-term water absorption by partial immersion (method 1) . 5
7.2.2 Long-term water absorption by total immersion (method 2). 6
8 Calculation and expression of results . 7
8.1 General . 7
8.2 Long-term water absorption by partial immersion . 7
8.3 Long-term water absorption by total immersion . 8
9 Accuracy of measurement . 9
10 Test report . 9
Bibliography .11
ISO 16535:2019(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see: www .iso
.org/iso/foreword .html.
This document was prepared by the European Committee for Standardization (CEN) Technical
Committee CEN/TC 88, Thermal insulating materials and products, in collaboration with ISO Technical
Committee TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1,
Test and measurement methods, in accordance with the agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 16535:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— The content in 5.3, 6.4, 7.1 and 10 has been revised to reflect the conditions for tropical countries.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

INTERNATIONAL STANDARD ISO 16535:2019(E)
Thermal insulating products for building applications —
Determination of long-term water absorption by
immersion
1 Scope
This document specifies the equipment and procedures for determining the long-term water absorption
of test specimens. It is applicable to thermal insulating products.
This document specifies two methods:
— Method 1: Partial immersion;
— Method 2: Total immersion.
The long-term water absorption by partial immersion is intended to simulate the water absorption
caused by long-term water exposure.
The long-term water absorption by total immersion is not directly related to the conditions on site, but
has been recognized
...