ISO 3536

Date: 2025-01
ISO/FDIS 3536:2025(en)
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
ISO/FDIS 3536:2025(en)
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ii
ISO/DISFDIS 3536:2025(en)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Index 8
iii
ISO/FDIS 3536:2025(en)
Foreword
PageISO (the International Organization for Standardization) is a worldwide federation of
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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.
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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))
ISO/FDIS 3536:2025(en)
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
...