ISO 3536:2026

International
Standard
ISO 3536
Fourth edition
Road vehicles — Safety glazing
2026-01
materials — Vocabulary
Véhicules routiers — Vitrages de sécurité — Vocabulaire
Reference number
© ISO 2026
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ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Index . 6

iii
Foreword
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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:
— 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
International Standard ISO 3536:2026(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 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
plastic safety glazing material
safety glazing material (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 conform
...