EN ISO 9229:2020

Thermal insulation - Vocabulary (ISO 9229:2020)

This document provides a vocabulary of terms used in the field of thermal insulation that covers materials, products, components and applications. Some of the terms can have a different meaning when used in other industries or applications.

Wärmedämmung - Begriffe (ISO 9229:2020)

Dieses Dokument enthält Begriffsbestimmungen für die Anwendung im Bereich der Wärmedämmung von Materialien, Produkten, Bauteilen und Anwendungen. Einige der Begriffe können eine andere Bedeutung haben, wenn sie in anderen Industriezweigen oder Anwendungsbereichen benutzt werden.

Isolation thermique - Vocabulaire (ISO 9229:2020)

Le présent document fournit un vocabulaire de termes relatifs aux matériaux, produits, composants et applications utilisés dans le domaine de l'isolation thermique. Certains de ces termes peuvent avoir une signification différente lorsqu'ils sont utilisés par d'autres industries ou pour d'autres applications.

Toplotna izolacija - Slovar (ISO 9229:2020)

General Information

• Status: Published
• Publication Date: 16-Jun-2020
• Withdrawal Date: 30-Dec-2020
• ICS: 01.040.27 - Energy and heat transfer engineering (Vocabularies)
• ICS: 01.040.91 - Construction materials and building (Vocabularies)
• ICS: 27.220 - Heat recovery. Thermal insulation
• ICS: 91.120.10 - Thermal insulation of buildings
• Technical Committee: CEN/TC 88 - Thermal insulating materials and products
• Drafting Committee: CEN/TC 88/WG 2 - Coordinating group
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 17-Jun-2020
• Completion Date: 17-Jun-2020
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/103 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on thermal insulating products
• Ref Project: SIST EN ISO 9229:2020 - Thermal insulation - Vocabulary (ISO 9229:2020)

Relations

• Replaces: EN ISO 9229:2007 - Thermal insulation - Vocabulary (ISO 9229:2007)
• Effective Date: 02-Aug-2017

Overview

EN ISO 9229:2020 - Thermal insulation - Vocabulary (ISO 9229:2020) is a standardized glossary of terms used across the thermal insulation sector. Published by CEN as an endorsed version of ISO 9229:2020, this third edition replaces the 2007 edition and gives consistent terminology for materials, products, components, supply forms, systems, testing and certification related to thermal insulation. The standard helps remove ambiguity in specifications, procurement, test reports and technical communication across industries and languages.

Key topics

• Scope and structure: comprehensive vocabulary covering thermal insulation materials, products, components, forms of supply, systems and common testing/certification terms. No normative references.
• Material definitions: clear entries for cellular plastics (EPS, XPS), polyurethanes (PUR, PIR), phenolic foam (PF), cellular glass (CG), mineral and glass wool (MW, glass wool, stone wool), cellulose, cork, expanded perlite, vermiculite, carbon/graphite fibres, etc.
• Product and component terms: pipe sections (concentric, precision v-groove, cut, moulded), facings, vapour barriers and vapour retarders, external thermal insulation composite systems (ETICS) - with clarified and revised definitions in this edition.
• Forms of supply & applications: board, loose fill, mats, moulded elements, and product-specific supply forms.
• Testing and certification vocabulary: terminology used in test reports, conformity assessment and certification for insulation products and systems.
• Notable updates: revised ETICS definition, clarified vapour barrier/retarder terminology, corrected cross-references and resolved circular definitions.

Applications

Who uses EN ISO 9229:2020 and why:

• Manufacturers & product developers - for accurate product data sheets and labelling using standardized terms (EPS, XPS, PIR, PUR, mineral wool).
• Specifiers, architects & consulting engineers - to avoid ambiguity in technical specifications and tender documents.
• Testing laboratories & certification bodies - to align test reports and conformity statements with accepted vocabulary.
• Regulators & procurement teams - to reference consistent terminology in regulations and purchase contracts.
• Trainers and technical authors - for consistent teaching materials, manuals and multilingual documentation.

Practical benefits:

• Reduces misinterpretation between stakeholders
• Improves clarity in regulatory and contractual texts
• Facilitates international trade and cross-border projects by harmonizing terms

Related standards

• This document is an ISO standard prepared by ISO/TC 163 in collaboration with CEN/TC 88 and is adopted as EN ISO 9229:2020 by CEN members. It supersedes EN ISO 9229:2007.
• For implementation details and cross-references consult the ISO Online Browsing Platform (https://www.iso.org/obp).

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2020
Nadomešča:
SIST EN ISO 9229:2008
Toplotna izolacija - Slovar (ISO 9229:2020)
Thermal insulation - Vocabulary (ISO 9229:2020)
Wärmedämmung - Begriffe (ISO 9229:2020)
Isolation thermique - Vocabulaire (ISO 9229:2020)
Ta slovenski standard je istoveten z: EN ISO 9229:2020
ICS:
01.040.27 Prenos energije in toplote Energy and heat transfer
(Slovarji) engineering (Vocabularies)
01.040.91 Gradbeni materiali in gradnja Construction materials and
(Slovarji) building (Vocabularies)
27.220 Rekuperacija toplote. Heat recovery. Thermal
Toplotna izolacija insulation
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9229
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 01.040.27; 27.220 Supersedes EN ISO 9229:2007
English Version
Thermal insulation - Vocabulary (ISO 9229:2020)
Isolation thermique - Vocabulaire (ISO 9229:2020) Wärmedämmung - Begriffe (ISO 9229:2020)
This European Standard was approved by CEN on 9 June 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9229:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 9229:2020) 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 December 2020, and conflicting national standards
shall be withdrawn at the latest by December 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 ISO 9229:2007.
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 9229:2020 has been approved by CEN as EN ISO 9229:2020 without any modification.

INTERNATIONAL ISO
STANDARD 9229
Third edition
2020-06
Thermal insulation — Vocabulary
Isolation thermique — Vocabulaire
Reference number
ISO 9229:2020(E)
©
ISO 2020
ISO 9229:2020(E)
© ISO 2020
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved

ISO 9229:2020(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Thermal insulation materials . 1
3.2 Thermal insulation products . 5
3.3 Form of supply . 7
3.4 Thermal insulation, systems and applications .11
3.5 Thermal insulation components.13
3.6 Common terms .14
3.7 Testing and certification terms .16
Annex A (informative) Thermal insulation concept .18
Bibliography .19
ISO 9229:2020(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 Technical Committee ISO/TC 163, Thermal performance and energy
use in the built environment, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 88, Thermal insulating materials and products, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 9229:2007), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— revised ETICS definition;
— thorough review of cross-references with numerous new additions and corrections;
— double term entries have been either given their own terminology entries or identified as preferred
and accepted terms;
— circular definitions have been corrected;
— pipe section superordinate concept changed as parent term and subordinate terms expanded to
1) concentric pipe section, 2) precision v-groove pipe section, 3) cut pipe section, 4) moulded pipe
section;
— vapour barrier and vapour retarder definitions have been revised and clarified.
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 2020 – All rights reserved

INTERNATIONAL STANDARD ISO 9229:2020(E)
Thermal insulation — Vocabulary
1 Scope
This document provides a vocabulary of terms used in the field of thermal insulation that covers
materials, products, components and applications. Some of the terms can have a different meaning
when used in other industries or applications.
2 Normative references
There are no normative references in this document.
3 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 http:// www .electropedia .org/
3.1 Thermal insulation materials
3.1.1
thermal insulation material
substance that is intended to reduce heat transfer and that derives its insulation properties from its
chemical nature, its physical structure or both
3.1.2
cellular plastic
thermal insulation material (3.1.1) made from plastic, in which the density is reduced by the presence
of numerous small cavities (cells), which may be interconnecting or not, dispersed throughout the
material
3.1.2.1
expanded polystyrene
EPS
rigid cellular plastic (3.1.2) thermal insulation material (3.1.1) manufactured by moulding beads of
expandable polystyrene or one of its co-polymers and that has a substantially closed-cell structure,
filled with air
3.1.2.2
extruded polystyrene foam
XPS
rigid cellular plastic (3.1.2) thermal insulation material (3.1.1) made from polystyrene or one of its co-
polymers, which has a closed-cell structure and is produced through an extrusion process
3.1.2.3
flexible elastomeric foam
FEF
pliable thermal insulation product (3.2.1) made of natural or synthetic rubber, or a mixture of the two,
and containing other polymers and other chemicals that may be modified by organic or inorganic
additives
ISO 9229:2020(E)
3.1.2.4
phenolic foam
PF
rigid cellular plastic (3.1.2) thermal insulation material (3.1.1), the polymer structure of which is made
primarily from the poly-condensation of phenol, its homologues and/or derivatives with aldehydes
or ketones
3.1.2.5
polyethylene foam
PEF
semi-rigid or flexible cellular plastic (3.1.2) thermal insulation material (3.1.1) based on polymers
derived mainly from ethylene and/or propylene
3.1.2.6
polyurethane foam
PUR
rigid or semi-rigid cellular plastic (3.1.2) thermal insulation material (3.1.1) with a substantially closed-
cell structure based on polyurethanes
3.1.2.7
urea formaldehyde foam
UF
cellular plastic (3.1.2) thermal insulation material (3.1.1) with a substantially open-cell structure, based
on an amino resin made by the polycondensation of urea with formaldehyde
3.1.2.8
expanded polyvinyl chloride
rigid or semi-rigid cellular plastic (3.1.2) thermal insulation material (3.1.1) based on vinyl chloride
polymers expanded to form a cellular structure consisting substantially of closed cells
3.1.2.9
polyisocyanurate foam
PIR
rigid cellular plastic (3.1.2) thermal insulation material (3.1.1) with a substantially closed-cell structure
based on polymers mainly of the isocyanurate type
3.1.3
cellular glass
CG
rigid thermal insulation material (3.1.1) made from expanded glass with a closed-cell structure
3.1.4
calcium silicate
CS
thermal insulation material (3.1.1) comprised of calcium oxide and silicon dioxide, normally reinforced
by incorporating fibres
3.1.5
aluminosilicate wool
ASW
amorphous high temperature insulating wool (HTIW) predominantly produced by melting a
combination of Al O and SiO , and may contain ZrO and Cr O
2 3 2 2 2 3
3.1.6
magnesia
thermal insulation material (3.1.1), composed principally of basic magnesium carbonate that
incorporates fibre as a reinforcing agent
2 © ISO 2020 – All rights reserved

ISO 9229:2020(E)
3.1.7
expanded clay
lightweight granular thermal insulation material (3.1.1), having a cellular structure formed by expanding
clay minerals by heat
3.1.8
expanded perlite
perlite
lightweight granular thermal insulation material (3.1.1), manufactured from naturally occurring
volcanic rock, expanded by heat to form a cellular structure
3.1.9
exfoliated vermiculite
vermiculite
thermal insulation material (3.1.1) that results from expanding or exfoliating a natural micaceous
mineral by heating
3.1.10
diatomaceous insulation
thermal insulation material (3.1.1) composed mainly of the skeletons of diatoms (cellular siliceous
particles of microscopic size)
Note 1 to entry: It is available in the form of a powder, bonded or granular material. See diatomaceous brick
(3.2.10).
3.1.11
expanded rubber
cellular rubber thermal insulation material (3.1.1) having closed cells, made from a solid rubber
compound
3.1.12
cellulose insulation
CI
fibrous thermal insulation material (3.1.1) derived from paper, paperboard stock or wood
3.1.13
cork
protective layer of the cork oak tree (Quercus Suber L), which can be periodically removed from its
trunk and branches to provide the raw material for cork products
3.1.14
fibrous insulation
thermal insulation material (3.1.1) composed of naturally occurring or manufactured fibres
3.1.15
wood wool
WW
thermal insulation material (3.1.1) composed of long shavings of wood
3.1.16
hemp wool
HW
thermal insulation material (3.1.1) composed of hemp fibres
3.1.17
sheep wool
thermal insulation material (3.1.1) composed of sheep wool fibres
3.1.18
mineral fibre
thermal insulation material (3.1.1) composed of non-metallic inorganic fibres
ISO 9229:2020(E)
3.1.18.1
ceramic fibre
inorganic fibres manufactured from metal oxides or clays
3.1.19
mineral wool
MW
fibrous thermal insulation material (3.1.1) manufactured from molten rock, slag or glass
3.1.19.1
glass wool
mineral wool (3.1.19) manufactured predominantly from natural sand or molten glass
3.1.19.2
stone wool
mineral wool (3.1.19) manufactured predominantly from molten naturally occurring igneous rock
3.1.19.3
slag wool
mineral wool (3.1.19) manufactured predominantly from molten furnace slag
3.1.20
loose wool
mineral wool (3.1.19) or other materials of a woolly consistency, with or without a binder (3.5.8), and
having a random fibre orientation
3.1.21
polycrystalline wool
PCW
wool consisting of fibres produced by the sol-gel method, whose fibres are subsequently heat treated to
achieve the polycrystalline structure
3.1.22
alkaline-earth-silicate wool
AES
amorphous high temperature insulating wool (HTIW) predominantly produced by melting a
combination of CaO, MgO and SiO , with low biopersistence
3.1.23
asbestos fibre
fibre obtained by the separation into fine filaments of naturally occurring mineral silicates, which
possess a crystalline structure
WARNING — Asbestos fibres are not generally recommended for use in the manufacture of
thermal insulation products (3.2.1) because of their known health hazards. Refer to national
regulations.
Note 1 to entry: Products related to asbestos carry the names of chrysotile, crocidolite, amosite, tremolite,
actinolite and anthophyllite.
3.1.24
carbon fibre
organic fibres that have been carbonized, but not thermally stabilized, and consist essentially of carbon
3.1.25
cellular concrete
thermal insulation material (3.1.1) composed of concrete containing a substantial number of small air cells
3.1.25.1
insulating castable refractory
cellular concrete (3.1.25) that contains a suitably graded, insulating refractory aggregate
4 © ISO 2020 – All rights reserved

ISO 9229:2020(E)
3.1.26
foamed slag concrete
cellular concrete (3.1.25) with foamed slag as aggregate
3.1.27
foamed slag aggregate
furnace slag treated to produce lightweight aggregate (3.2.5)
3.1.28
graphite fibre
carbon fibre (3.1.24) that has been thermally stabilized at temperatures up to the graphitization
temperature
3.1.29
aerated autoclaved concrete
AAC
porous thermal insulation material (3.1.1) produced by solidifying a mortar consisting of silica sand
(pure quartz), cement, lime and water under high pressured steam
3.1.30
insulating concrete
concrete in the oven-dry condition having a density of not less than 800 kg/m and not more than
2 000 kg/m
Note 1 to entry: Insulating concrete may be cured by autoclaving.
[SOURCE: EN 206:2013+A1: 2016, 3.1.4.1]
3.1.31
insulating plaster
thermal insulation material (3.1.1) composed of plaster that contains lightweight aggregate (3.2.5)
3.1.32
perlite plaster
thermal insulation material (3.1.1) composed of plaster that contains expanded perlite (3.1.8) aggregate
3.1.33
microporous insulation
thermal insulation material (3.1.1) in the form of compacted powder or fibres with an average
interconnecting pore size comparable to or below the mean free path of air molecules at standard
atmospheric pressure
Note 1 to entry: Microporous insulation may contain opacifiers to reduce the amount of radiant heat transmitted.
3.1.34
unbonded insulation
loose thermal insulation material (3.1.1) manufactured without binder (3.5.8)
3.1.35
polyester fibre insulation
man-made fibrous thermal insulation material (3.1.1) made from polyester fibres, with or without the
addition of adhesive binders (3.5.8) applied during the manufacturing process
3.2 Thermal insulation products
3.2.1
thermal insulation product
thermal insulation material (3.1.1) in its finished form, including any facings (3.5.1) or coatings (3.5.4)
ISO 9229:2020(E)
3.2.2
composite insulation product
thermal insulation product (3.2.1) made from two or more layers of different thermal insulation materials
(3.1.1), in which each layer of insulation is bonded to the adjacent layer(s)
Note 1 to entry: See also composite insulation (3.4.13).
3.2.3
in‑situ thermal insulation product
thermal insulation product (3.2.1) produced or taking its final form at the site of application and that
achieves its properties after installation
3.2.3.1
blowing wool
granulated wool (3.2.3.2) or loose-fill insulation (3.3.22) for application or installation by pneumatic
equipment
3.2.3.2
granulated wool
thermal insulation product (3.2.1) obtained by mechanically processing mineral wool (3.1.19) or other
materials of a woolly consistency into pieces having a rounded but irregular shape
3.2.3.3
granulated cork
thermal insulation product (3.2.1) composed of fragments of cork (3.1.13) obtained by grinding and/or
milling raw cork, corkwood or cut pieces
3.2.3.4
spray-applied polyurethane
cellular polyurethane foam (3.1.2.6) thermal insulation product (3.2.1), which is foamed in‑situ
insulation (3.4.5)
3.2.3.5
spray-applied polyisocyanurate
polyisocyanurate foam (3.1.2.9) thermal insulation product (3.2.1), which is foamed in‑situ insulation (3.4.5)
3.2.3.6
injected urea formaldehyde foam
urea formaldehyde cellular plastic (3.1.2) thermal insulation product (3.2.1) [see UF (3.1.2.7)], which is
foamed in‑situ insulation (3.4.5)
3.2.4
lamella product
product made from fibrous materials in which the general orientation of the fibres is
perpendicular to the major surfaces
3.2.5
lightweight aggregate
material or product composed of porous expanded granules
3.2.6
expanded perlite board
EPB
rigid insulation board manufactured from expanded perlite (3.1.8), reinforcing fibres and binding agents
3.2.7
wood wool slab
WW slab
rigid thermal insulation product (3.2.1) manufactured from loose wood wool (3.1.15), bonded with a
binder (3.5.8) and compressed to its final thickness
6 © ISO 2020 – All rights reserved

ISO 9229:2020(E)
3.2.8
insulating cement
mixture of dry-fibrous and/or powdery materials that, when mixed with water, develop a plastic
consistency and dry in place
3.2.9
wood fibre product
thermal insulation product (3.2.1) manufactured from wood fibres, with or without the addition of a
bonding agent, compressed to its finished form with or without the a
...