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BRITISH STANDARD AUTOMOBILE SERIES

BS AU
209-4a:1 995
Incorp orating
Am endm ent No.

Vehicle security —
Part 4a: Specification for security
glazing for passenger cars and car
derived vehicles

IC S 43 . 0 40 . 60 ; 43 . 1 0 0

1


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BS AU 209-4a:1 995

Committees responsible for this
British Standard

The preparation of this British Standard was entrusted to Technical
Committee AUE/1 7, Vehicle security, upon which the following bodies were
represented:
Association of Car Fleet Operators
Automobile Association

Automotive Glazing Executive
British Security Industry Association
Consumer Policy Committee of BSI
Consumers’ Association
Department of Trade and Industry (Vehicles Division)
Department of Transport
Freight Transport Association
Home Office
Ice (Ergonomics)
Master Locksmiths Association
Metropolitan Police
Motor Industry Research Association
Road Haulage Association Ltd.
Royal Automobile Club
Society of Motor Manufacturers and Traders Limited

This British Standard, having
been prepared under the
direction of the Engineering
Sector Board, was published
under the authority of the
Standards Board and comes

Amendments issued since publication

into effect on
1 5 August 1 995
© BSI 04- 2000

Amd. No.


Date

Comments

9701

November

Indicated by a sideline in the margin

1 997
The following BSI references
relate to the work on this
standard:
Committee reference AUE/1 7
Draft for comment 94/708973 DC

ISBN 0 5 80 24629 9


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BS AU 209-4a:1 995

Contents

Page
Committees responsible


Inside front cover

Foreword

ii

1

Scope

1

2

Informative references

1

3

Definitions

1

4

Security glazing and resistance to removal by impact

1


Annex A (informative) Security glazing

2

Annex B (normative) Impact tests for the retention of
security glazing

2

Figure B. 1 — Impact test

4

Figure B. 2 — Impact points

5

Table A. 1 — Windscreens

2

List of references

© BSI 04- 2000

Inside back cover

i



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BS AU 209-4a:1 995

Foreword

This Part of BS AU 209 has been prepared by Technical Committee AUE/1 7, at
the request of the Department of Transport, and with the support of the Home
Office and organizations connected with law enforcement, the motor vehicle
construction industry, and vehicle users.
Hitherto, no standard has existed for the United Kingdom that defines the
performance and use of security glazing and its installation when used to prevent
or deter unauthorized entry into or removal of the motor vehicle.
It is recognized that this standard covers a relatively new area, not previously
standardized, and that it may be necessary to amend the requirements resulting
from initial experience of its use.
Other Parts of BS AU 209 are as follows.
— Part 0: Code of practice for the application of security devices /systems to
vehicles

1)

;

— Part 1 a: Specification for locking systems for passenger cars and car derived
vehicles;

— Part 2: Specification for security systems against theft of in-car equipment for
entertainment and communication purposes;


— Part 3: Specification for security marking of glazing for passenger cars and
car derived vehicles;

— Part 5b : Specification for central power locking systems for passenger cars
and car derived vehicles

1)

;

— Part 6a: Specification for dead locking systems for passenger cars and car
derived vehicles

1)

;

— Part 7: Specification for locking systems for goods vehicle drivers’
compartments.

It is envisaged that the following Parts will be published in due course.
— Part 8: Specification for locking systems for the load carrying compartment;
— Part 9: Specification for security of ancillary equipment on CVs;
— Part 1 0: Specification for immob ilizers.
A British Standard does not purport to include all the necessary provisions of a
contract. Users of British Standards are responsible for their correct application.
C ompliance with a British Standard does not of itself confer immunity
from legal obligations.

Summary of pages


This document comprises a front cover, an inside front cover, pages i and ii,
pages 1 to 6, an inside back cover and a back cover.
This standard has been updated (see copyright date) and may have had
amendments incorporated. This will be indicated in the amendment table on the
inside front cover.

1)

ii

In preparation.

© BSI 04- 2000


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BS AU 209-4a:1 995

1 Scope
This Part of BS AU 209 specifies the minimum

3.3
glass-plastics safety glazing material

requirements for the performance of security

a product consisting of glazing material which


glazing and its installation in order to deter

comprises one or more layers of glass and one or

unauthorized entry into, or use of, passenger cars

more layers of plastics in which a plastics surface of

and car derived vehicles. Provisions for security

the product faces inwards towards the passenger

glazing are covered in Annex A.

compartment when installed into the vehicle

2 Informative references
This Part of BS AU 209 refers to other publications
that provide information or guidance. Editions of
these publications current at the time of issue of this
standard are listed on the inside back cover, but

4 Security glazing and resistance to
removal by impact
NOTE

Security glazing requirements are given in legislation

(see Annex A) .


4.1 When tested in accordance with Annex B, the

reference should be made to the latest editions.

installed security glazing surrounding the

3 Definitions

to the requirements of 4.2 and 4.3 .

passenger compartment of the vehicle shall conform

For the purposes of this Part of BS AU 209, the
following definitions apply.
3.1
security glazing

4.2 There shall be no separation between the

glazing and the body aperture large enough to
permit the free passage of a sphere 40 mm

± 2 mm

in diameter.
4.3 It shall not be possible to pass a

± 2 mm in diameter freely through

safety glazing material or glass- plastics safety


sphere 40 mm

glazing material so constructed and installed in a

any tear or split which develops within the glazing

vehicle in such a manner as to deter unauthorized

materials.

entry into the vehicle

4.4 If any piece of installed glazing fails to conform

3.2

to the requirements of 4.2 or 4.3 , two further

safety glazing material

separate, but identical pieces, shall be tested in

a product consisting of organic and/or inorganic
materials so constructed or treated to reduce in

accordance with Annex B and both shall conform to
the requirements of 4.2 and 4.3 .

comparison with annealed sheet, plate or float glass,

the likelihood of inj ury to persons as a result of
contact with the safety glazing materials when used
in a vehicle, whether they are broken or unbroken
and for which special requirements regarding
visibility, strength and abrasion resistance are laid
down

© BSI 04- 2000

1


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BS AU 209-4a:1 995

Annex A (informative)
Security glazing

Annex B (normative)
Impact tests for the retention of
security glazing

A.1 General

The safety provisions of security glazing are covered B.1 Apparatus
in A.2 to A.4 and include established safety
B.1 .1 General. The apparatus shall be adjustable to
requirements for vehicle glazing and enhanced
enable a range of doors or complete vehicles to be

resistance to penetration of the glazing when
tested. An adjustable rigid support shall be used.
subject to attack from outside the vehicle.
Provision shall be made to interpose a rubber strip
of thickness 25 mm and 50 IRHD between the door
A.2 For use as a front windscreen
or closure and the support during the testing to
The glazing is covered by one of the following
represent the door or closure seal, adjacent to the
annexes to ECE Regulation 43 or
glazing
area (see Figure B.1). The apparatus shall
EC Directive 92/22/EEC as given in Table A.1.
be
as
shown
in Figure B.1 and shall be as described
Table A.1 — Windscreens
in B.1 .2 and B.1 .3 .
B.1 .2 A pendulum , consisting of a mild steel 75 mm
diameter cylindrical head with hemispherical ends
Ordinary
Annex 6
Annex II B
of 75 mm diameter attached to a length of 16 mm
laminated glass
diameter steel rod. The total mass of the pendulum
shall be 9.5 kg ± 0.2 kg.
Treated
Annex 8

Annex II C
B.1 .3 An adjustable rigid support , to enable the
laminated glass
glazing to be mounted either by its in-vehicle rubber
Plastics-coated Annex 9
Annex II K
seal or by a strip to simulate such a seal.
safety glazing
NOTE As an alternative, testing may be conducted on a whole
Glass-plastics Annex 10
Annex II D
vehicle.
Type of

windscreen

ECE Regulation 43

EC Directive
92/22/EEC

A.3 For use in locations where driving

B.2 Test conditions

Tests shall be carried out under the following
visibility is required other than in a front
conditions:
windscreen
a) temperature: 20 °C ± 5 °C;

The glazing is covered by either:
b) pressure: 960 mbar ± 100 mbar;
a) A.2 of this standard except that the provisions
c) relative humidity: 60 % ± 20 %.
of Annex 3 in ECE Regulation 43, or 9.2 and 9.3
in Annex II A of EC Directive 92/22/EEC do not B.3 Procedure
apply; or
B.3.1 Carry out the test on each piece of suitably
b) category A of BS AU 182:1982 if it is not used sized external glazing in the vehicle (see B.3.3 ).
wholly or partly on either side of the driver’s seat. Where the left hand side and the right hand side of
the vehicle are symmetrically glazed, it is only
A.4 For use in locations where driving
necessary to test one side.
visibility is not required, including sun roofs
B.3.2 Position the pendulum in such a way that, at
The glazing is covered by either:
a) A.2 of this standard except that the provisions the point of impact, the hammer head is normal to
the surface of the glazing.
of Annex 3 in EC Regulation 43, or 9.1 , 9.2
and 9.3 in Annex II A of EC Directive 92/22/EEC Subject each piece of glazing to five impacts from a
vertical drop height of 700 mm ± 10 mm with a
do not apply; or
single
impact at each point of the pattern shown
b) category D of BS AU 182:1982.
in Figure B.2 c), the outer points of which form a
square of side 70 mm ± 5 mm, which has one
diagonal in the horizontal plane.
Position the centre of the pattern as follows:
a) for symmetrical glazing: 150 mm ± 10 mm

from the top of the exterior visible glazing on the
vertical plane of symmetry, as shown in
Figure B.2 a);

2

© BSI 04-2000


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BS AU 209-4a:1 995

b) for asymmetrical glazing: within 1 0 mm of the
mid- point of the minimum radius of curvature of
a line 1 50 mm from and parallel to the top and
sloping edges of the exterior visible glazing, as
shown in Figure B. 2 b) .

B.3.3 For small glazed areas, such as sixthlights
where the dimensions are too small to accommodate
the impact pattern shown in Figure B. 2 c) , carry out
a single impact at any point which is further
than 1 00 mm from the daylight opening.
NO TE

If the glazing area is so small that no such point exists,

the requirements of 4.1 do not apply.


©

BSI 04- 2 000

3


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4

©

BSI 04- 2 000

Figure B.1 — Impact test

BS AU 209-4a:1 995


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BSI 04- 2 000

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©

5


Figure B.2 — Impact points

BS AU 209-4a:1 995


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6

blank


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BS AU 209-4a:1 995

List of references

(see clause 2 )

Informative references

BSI publications
BRITISH STANDARDS INSTITUTION, London

BS AU 1 82: 1 982,

Specification for plastics safety glazing materials for use in road vehicles.

Other references


Uniform provisions concerning the approval of safety glazing and glazing materials
(as amended by supplements 1 to 3)2) .
ECE Regulation 43,

Council Directive 92/22/EEC,

2)

Obtainable from HMSO.

© BSI 04- 2000

Safety glazing and glazing materials on motor vehicles and their trailers 2) .


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BS AU
209-4a:1 995

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