ISO/FDIS 3536
(Main)Road vehicles — Safety glazing materials — Vocabulary
Road vehicles — Safety glazing materials — Vocabulary
ISO 3536:2016 defines terms relating to safety glazing materials for road vehicles.
Véhicules routiers — Vitrages de sécurité — Vocabulaire
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FINAL DRAFT
International
Standard
ISO/TC 22/SC 35
Road vehicles — Safety glazing
Secretariat: UNI
materials — Vocabulary
Voting begins on:
Véhicules routiers — Vitrages de sécurité — Vocabulaire 2025-10-03
Voting terminates on:
2025-11-28
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WITH THEIR COMMENTS, NOTIFICATION OF ANY
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INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 22/SC 35
Road vehicles — Safety glazing
Secretariat: UNI
materials — Vocabulary
Voting begins on:
Véhicules routiers — Vitrages de sécurité — Vocabulaire
Voting terminates on:
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 SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Index . 6
iii
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 22, Road vehicles, Subcommittee SC 35,
Lighting and visibility.
This fourth edition cancels and replaces the third edition (ISO 3536:2016), which has been technically
revised.
The main changes are as follows:
— Clause 2 “Normative references” added, resulting in renumbering of the subsequent clauses;
— definition of security glazing (3.10) modified (mechanical attack added);
— definition of bullet resistant glazing material (3.19) modified (special type of security glazing);
— new precise definition of height of segment (3.21);
— new precise definition of opaque obscuration (3.28).
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
FINAL DRAFT International Standard ISO/FDIS 3536:2025(en)
Road vehicles — Safety glazing materials — Vocabulary
1 Scope
This document defines terms relating to safety glazing materials for road vehicles.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminology 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
safety glazing material
glazing material consisting of organic and/or inorganic materials constructed or treated to minimize the
likelihood of injury to persons as a result of contact when used in a vehicle and which complies with specified
requirements for visibility, strength and durability
3.2
toughened safety glass
glazing material consisting of a single layer of glass which has been subjected to special thermal or chemical
treatment to increase its mechanical strength and to condition its fragmentation after shatter
Note 1 to entry: The term “tempered safety glass” may also be used as an alternative to “toughened safety glass”.
3.3
laminated safety glass
glazing material consisting of two or more layers of glass held together by one or more interlayers (3.4)
Note 1 to entry: The following two types are recognized:
— ordinary: when none of the layers of glass, of which it is composed, have been treated, i.e. normal annealed glass;
— treated: when at least one of the layers of glass, of which it is composed, is a toughened safety glass (3.2) or glass which
has been treated in any controlled process in order to give it increased resistance to mechanical and thermal stress.
3.4
interlayer
plastic material designed to be used to permanently bond together the component layers of laminated safety
glass (3.3)
3.5
glass-plastic glazing material
glazing material which may be comprised of one
...
Date: 2025-01
ISO/TC 22/SC 35
Secretariat: UNI
Date: 2025-09
Road vehicles — Safety glazing materials — Vocabulary
Véhicules routiers —Vitrage Vitrages de sécurité — Vocabulaire
FDIS stage
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
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO/DISFDIS 3536:2025(en)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Index 8
iii
Foreword
PageISO (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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 22, Road vehicles, Subcommittee SC 35, Lighting
and visibility.
This fourth edition cancels and replaces the third edition (ISO 3536:2016), which has been technically revised.
The main changes are as follows:
— 2— Chapter 2 “Normative references” added, resulting in renumbering of the subsequent chaptersclauses;
— — Chapter 3.10: Definitiondefinition of “security glazing (3.10”) modified (mechanical attack added));
— — Chapter 3.19: Definitiondefinition of “bullet resistant glazing material (3.19”) modified (special type
of security glazing));
— — Chapter 3.21: Newnew precise definitionsdefinition of heightsheight of segment (3.21);
— — Chapter 3.28: Newnew precise definition of opaque obscuration (3.28).
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
DRAFT International Standard ISO/DIS 3536:2025(en)
Road vehicles — Safety glazing materials — Vocabulary
1 Scope
This document defines terms relating to safety glazing materials for road vehicles.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
ISO and IEC maintain terminology 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 3.1
safety glazing material
glazing material consisting of organic and/or inorganic materials constructed or treated to minimize the
likelihood of injury to persons as a result of contact when used in a vehicle and which complies with specified
requirements for visibility, strength, and durability
3.2 3.2
toughened safety glass
glazing material consisting of a single layer of glass which has been subjected to special thermal or chemical
treatment to increase its mechanical strength and to condition its fragmentation after shatter
Note 1 to entry: The term “tempered safety glass” may also be used as an alternative to “toughened safety glass”.
3.3 3.3
laminated safety glass
glazing material consisting of two or more layers of glass held together by one or more interlayers (3.4(3.4))
Note 1 to entry: The following two types are recognized:
— — ordinary: when none of the layers of glass, of which it is composed, hashave been treated, i.e. normal annealed
glass;
— — treated: when at least one of the layers of glass, of which it is composed, is a toughened safety glass (3.2(3.2)) or
glass which has been treated in any controlled process in order to give it increased resistance to mechanical and
thermal stress.
3.4 3.4
interlayer
plastic material designed to be used to permanently bond together the component layers of laminated safety
glass (3.3(3.3))
3.5 3.5
glass-plastic glazing material
glazing material which may comprisebe comprised of one layer of glass and one or more layers of plastic in
which a plastic surface faces inward towards the vehicle passenger compartment when installed in the vehicle
3.6 3.6
plastic safety glazing material
safety glazing material (3.1(3.1)) that contains, as an essential ingredient, one or more layers of organic
polymeric substances
Note 1 to entry: The following two types are recognized:
— — rigid plastic: organic polymeric material which maintains its structural stiffness over the intended use range;
— — flexible plastic: organic polymeric material which remains conformable over the intended use range.
3.7 3.7
double glazed unit
assembly of two glazing materials permanently assembled in manufacture and separated by a uniform gap
Note 1 to entry: The following two types are recognized:
— — symmetrical: where the two components are identical, e.g. both toughened glass;
— — asymmetrical: where the two components are not identical, e.g. one unit is toughened glass and the other is
laminated glass, or where the two components are not of the same thickness.
3.8 3.8
double window
assembly of two individual glazing materials separately installed within the same opening in the vehicle
3.9 3.9
safety glass faced with plastics
uniformly toughened saf
...
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