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AS/NZS 2293.3:1995 EMERGENCY EVACUATION LIGHTING FOR BUILDINGS - EMERGENCY LUMINAIRES AND EXIT SIGNS

AS/NZS 2293.3:1995 EMERGENCY EVACUATION LIGHTING FOR BUILDINGS - EMERGENCY LUMINAIRES AND EXIT SIGNS

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AS/NZS 2293.3:1995
This Joint Australian/New Zealand Standard was prepared by Joint Technical
Committee LG/7, Emergency Lighting in Buildings. It was approved on behalf of
the Council of Standards Australia on 31 May 1995 and on behalf of the Council of
Standards New Zealand on 29 May 1995. It was published on 5 September 1995.

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The following interests are represented on Committee LG/7:
Administrative Services Department, Queensland
Association of Consulting Engineers Australia
Australian Building Codes Board
Australian Construction Services — Department of Administrative Services
Australian Electrical and Electronic Manufacturers Association
Australian Institute of Building Surveyors
Building Industry Authority, New Zealand
Building Management Authority of Western Australia
Building Owners and Managers Association of Australia
Department of Housing and Urban Development, South Australia
Department of Planning and Development, Victoria
Electricity Supply Association of Australia
Illuminating Engineering Society of Australia and New Zealand
National Electrical Contractors Association of Australia
New South Wales Fire Brigades
New South Wales Public Works
New Zealand Electrical Regulatory Authorities
New Zealand Manufacturers Federation
WorkCover Authority of New South Wales

Review of Standards. To keep abreast of progress in industry, Joint Australian/
New Zealand Standards are subject to periodic review and are kept up to date by the
issue of amendments or new editions as necessary. It is important therefore that
Standards users ensure that they are in possession of the latest edition, and any
amendments thereto.
Full details of all Joint Standards and related publications will be found in the Standards
Australia and Standards New Zealand Catalogue of Publications; this information is
supplemented each month by the magazines ‘The Australian Standard’ and ‘Standards
New Zealand’, which subscribing members receive, and which give details of new
publications, new editions and amendments, and of withdrawn Standards.
Suggestions for improvements to Joint Standards, addressed to the head office of either
Standards Australia or Standards New Zealand, are welcomed. Notification of any
inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be
made without delay in order that the matter may be investigated and appropriate action
taken.

This Standard was issued in draft form for comment as DR 92202.

AS/NZS 2293.3:1995

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Australian/New Zealand Standard
Emergency evacuation lighting
for buildings
Part 3: Emergency luminaires
and exit signs

PUBLISHED JOINTLY BY:
STANDARDS AUSTRALIA
1 The Crescent,
Homebush NSW 2140 Australia
STANDARDS NEW ZEALAND
Level 10, Radio New Zealand House,
155 The Terrace,
Wellington 6001 New Zealand
ISBN 0 7262 9883 2

AS / NZS 2293.3:1995

2

PREFACE
This Standard was prepared by the Joint Standards Australia/Standards New Zealand
Committee LG/7, Emergency Lighting in Buildings, to supersede, in part,
AS 2293.1—1987* and, in part, NZS 6742:1971†.
This Standard sets out requirements for emergency luminaires and exit signs that form
part of an emergency evacuation lighting system for a building. The objective of these
requirements is to ensure the safe and effective functioning of the emergency luminaires
and exit signs under operational and environmental conditions representative of those
which can reasonably be expected to apply in service.
Arising from a review of the 1987 edition of AS 2293.1, opportunity has been taken to
collect together the requirements for emergency luminaires and exit signs to form a
separate part (Part 3) of the AS/NZS 2293 series, leaving AS/NZS 2293.1‡ to cover
requirements for the overall system design, installation and operation.

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The requirements in this Standard are essentially the same as those which existed in
AS 2293.1—1987*. Changes of significance that have been made include the following:
(a)

Revision of the form of specifying the colours of exit signs (see Clause 3.6).

(b)

Revision of the requirements for the provision of a test switch, for self-contained
emergency luminaires and exit signs (see Clause 4.3.2).

(c)

Addition of a requirement for battery circuits to be protected from excessive
discharge currents in the event of fault conditions (see Clause 4.4.4).

(d)

Alteration of the requirements for battery chargers, including a new test to assess
performance under short circuit condititions (see Clause 4.5 and Paragraph D4,
Appendix D).

(e)

The inclusion of requirements for self-contained emergency luminaires and exit
signs with automatic discharge testing facilities (see Clause 4.8 and Paragraph D3
of Appendix D).

(f)

Modification of the photometric testing conditions and the associated requirements
for establishing luminaire classifications (see Paragraphs C2.1 and C3 of
Appendix C).

Different requirements apply in Australia and in New Zealand with respect to the form
and dimensions of exit signs (see Clause 3.4). The differences arise from differing
regulatory practices in the respective countries. It is anticipated that these differences will
be reconciled in the near future by adoption of exit signs of the pictogram type (i.e.
symbolic outline of a person moving towards an open door), when requirements for
internally illuminated forms of these signs are agreed internationally.
With reference to requirements for radio interference suppression (see Clause 1.5),
compliance with AS/NZS 4051§ is already mandatory in New Zealand under regulations
issued by the Ministry of Commerce. In Australia, the Spectrum Management Agency has
declared that compliance with AS/NZS 4051 will be required under Commonwealth
legislation from 1 January 1996.

* AS 2293.1 — 1987 Emergency evacuation lighting in buildings
Part 1: Design and installation
† NZS 6742:1971 Code of practice for emergency lighting in buildings
‡ AS/NZS 2293.1:1995 Emergency evacuation lighting for buildings
Part 1: System design, installation and operation
§ AS/NZS 4051:1992

Limits and methods of measurement of radio interference characteristics of
fluorescent lamps and luminaires.

3

AS / NZS 2293.3:1995

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The terms ‘normative’ and ‘informative’ have been used in this Standard to define the
application of the appendix to which they apply. A ‘normative’ appendix is an integral
part of a Standard, whereas an ‘informative’ appendix is only for information and
guidance.

Originated in Australia as part of AS 2293.1 — 1979.
Previous edition 1987.
Originated in New Zealand as part of NZS 6742:1971.
AS 2293.1 — 1987 and NZS 6742:1971 jointly revised
in part and redesignated AS/NZS 2293.3:1995.
Incorporating:
Amdt 1—1998

© Copyright STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND
Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software.
Except where the Copyright Act allows and except where provided for below no publications or software produced by
Standards Australia or Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any means
without prior permission in writing from Standards Australia or Standards New Zealand. Permission may be conditional on an
appropriate royalty payment. Australian requests for permission and information on commercial software royalties should be directed to
the head office of Standards Australia. New Zealand requests should be directed to Standards New Zealand.
Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of the
Standard without payment of a royalty or advice to Standards Australia or Standards New Zealand.
Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programs
are used exclusively in-house by the creators of the programs.
Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard
is amended or revised. The number and date of the Standard should therefore be clearly identified.
The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial
contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time.

AS / NZS 2293.3:1995

4

CONTENTS

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SECTION 1 SCOPE AND GENERAL
1.1 SCOPE . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 APPLICATION . . . . . . . . . . . . . . . . . . .
1.3 REFERENCED DOCUMENTS . . . . . . . .
1.4 DEFINITIONS . . . . . . . . . . . . . . . . . . . .
1.5 RADIO INTERFERENCE SUPPRESSION

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SECTION 2 GENERAL REQUIREMENTS FOR EMERGENCY
2.1 COMPLIANCE WITH AS 3137 . . . . . . . . . . . . . . . .
2.2 LUMINAIRE CLASSIFICATION . . . . . . . . . . . . . . .
2.3 ILLUMINATION AT SWITCH ON . . . . . . . . . . . . . .
2.4 IDENTIFICATION SYMBOL . . . . . . . . . . . . . . . . . .
2.5 MARKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LUMINAIRES
...........
...........
...........
...........
...........

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SECTION 3 GENERAL REQUIREMENTS
3.1 GENERAL . . . . . . . . . . . . . . . .
3.2 COMPLIANCE WITH AS 3137 .
3.3 GENERAL PRESENTATION . . .
3.4 FORM AND DIMENSIONS . . . .
3.5 ILLUMINATION . . . . . . . . . . . .
3.6 COLOUR . . . . . . . . . . . . . . . . .
3.7 MARKING . . . . . . . . . . . . . . . .

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. 9
. 9
. 9
. 9
. 9
. 11
. 11

SECTION 4 PARTICULAR REQUIREMENTS FOR SELF-CONTAINED
EMERGENCY LUMINAIRES AND EXIT SIGNS
4.1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 SUITABILITY FOR OPERATING TEMPERATURES . . . . . . . . . . . . . .
4.3 ARRANGEMENT AND CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4 BATTERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5 BATTERY CHARGERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6 CONTROL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7 ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8 SELF-CONTAINED AUTOMATIC DISCHARGE TESTING FACILITIES
4.9 MARKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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FOR EXIT SIGNS
..............
..............
..............
..............
..............
..............
..............

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APPENDICES
A ESSENTIAL DATA AND PREFERRED FORMAT FOR TEST REPORTS
FOR EMERGENCY LUMINAIRES AND EXIT SIGNS . . . . . . . . . . . . . . .
B SAMPLE DECLARATION OF COMPLIANCE FOR EMERGENCY
LUMINAIRES AND EXIT SIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C CLASSIFICATION OF EMERGENCY LUMINAIRES . . . . . . . . . . . . . . . .
D TYPE TESTING OF SELF-CONTAINED EMERGENCY LUMINAIRES AND
EXIT SIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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5

AS / NZS 2293.3:1995

STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND
Australian / New Zealand Standard
Emergency evacuation lighting for buildings
Part 3: Emergency luminaires and exit signs
S E C T I O N

1

S C O P E

A N D

G E N E R A L

1.1 SCOPE This Standard specifies requirements for the design, construction,
performance and testing of emergency luminaires and exit signs. It applies both to
emergency luminaires and exit signs which are centrally supplied, and to emergency
luminaires and exit signs of the self-contained type.

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Different requirements are specified for application in Australia and New Zealand with
respect to exit signs (see Section 3).
NOTES:
1 Requirements for the installation and operation of emergency luminaires and exit signs are
specified in AS/NZS 2293.1. Requirements for the periodic inspection and maintenance of
emergency luminaires and exit signs are set out in AS/NZS 2293.2.
2 Appendix A lists the essential data and preferred format of test reports for emergency
luminaires and exit signs. Such information may be required (e.g. by purchasers or
inspecting authorities) to substantiate compliance with the requirements of this Standard.
3 A sample declaration of the compliance of emergency luminaires and exit signs with this
Standard is given in Appendix B.

1.2 APPLICATION The requirements of this Standard apply to emergency luminaires
and exit signs as follows:
(a)

Centrally-supplied emergency luminaires—Section 2.

(b)

Centrally-supplied exit signs—Section 3.

(c)

Self-contained emergency luminaires—Sections 2 and 4.

(d)

Self-contained exit signs—Sections 3 and 4.

Where an exit sign is also designed to serve as an emergency luminaire, the applicable
combination of the above requirements shall apply.
1.3 REFERENCED DOCUMENTS
Standard:

The following documents are referred to in this

AS
1102
Graphical symbols for electrotechnology
1102.8 Part 8: Symbols for location diagrams
1319

Safety signs for the occupational environment

1680
Interior lighting
1680.3 Part 3: Measurement, calculation and presentation of photometric data
2633

Guide to the specification of colours

2752

Preferred numbers and their use

3100

Approval and test specification — General requirements for electrical equipment

3137

Approval and test specification — Luminaires (lighting fittings)
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AS / NZS 2293.3:1995

6

AS/NZS
2293
Emergency evacuation lighting for buildings
2293.1 Part 1: System design, installation and operation
2293.2 Part 2: Inspection and maintenance
4051
IEC
285
896

Limits and methods of measurement of radio disturbance characteristics of
electrical lighting and similar equipment
Alkaline secondary cells and batteries — Sealed nickel-cadmium cylindrical
rechargeable single cells
Stationary lead-acid batteries — General requirements and methods of test

1056
Portable lead-acid cells and batteries (valve-regulated types)
1056-1 Part 1: General requirements, functional characteristics — Methods of test
ISO
3864

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CIE*
107

Safety colours and safety signs
Review of the official recommendations of the CIE for the colours of signal
lights.

1.4 DEFINITIONS For the purpose of this Standard, the definitions given in
AS/NZS 2293.1 apply.
1.5 RADIO INTERFERENCE SUPPRESSION† Emergency luminaires and exit
signs shall be provided with radio interference suppression as necessary to ensure
compliance with AS/NZS 4051.

* International Commission on Illumination, Vienna.
† For application in New Zealand, this Clause forms part of the Standard as at the date of publication. For
application in Australia, this Clause forms part of the Standard on 1 January 1996.
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S E C T I O N

2
G E N E R A L R E Q U I R E M E N T S
E M E R G E N C Y L U M I N A I R E S

AS / NZS 2293.3:1995

F O R

2.1 COMPLIANCE WITH AS 3137 Emergency luminaires shall comply with the
requirements of AS 3137 unless otherwise specified in this Standard.
NOTE: For self-contained emergency luminaires, see also the requirements of Clause 4.7.

2.2 LUMINAIRE CLASSIFICATION Emergency luminaires shall be classified in
accordance with Appendix C and shall be appropriately marked.

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NOTE: The regulatory authority may require evidence to be supplied in support of the
classification marked on the luminaire, e.g. a test report from an appropriately accredited
laboratory.

2.3 ILLUMINATION AT SWITCH ON
2.3.1 Maximum delay Emergency luminaires shall provide a light output of at least—
(a) 10% of the reference value within 1 s of loss of the normal supply; and
(b) 80% of the reference value within 15 s of loss of the normal supply.
The reference value shall be taken as the luminous intensity assigned in terms of the
classification procedure of Paragraph C3.2 of Appendix C.
The requirements of Items (a) and (b) shall apply both when the emergency luminaires are
initially switched on (i.e. cold start) and when the emergency luminaires are switched on
immediately after operation for a period of 15 min (i.e. hot start).
NOTE: The provision of a light output of at least 10% of the reference value within 1 s of
energization is specified to minimize the possibility of panic occurring among the occupants of
the building.

2.3.2 Conditions for assessing compliance with Clause 2.3.1 For the purpose of
assessing compliance with the requirements of Clause 2.3.1, the following conditions shall
apply:
(a) Before the emergency luminaires are operated they shall be conditioned by
connection to the normal supply in an ambient atmosphere at 25 ±2°C for a period
of at least 1 h.
(b) Centrally-supplied emergency luminaires shall be operated at their rated voltage or,
where marked for operation within a range of voltages, the lowest marked voltage.
(c) Self-contained emergency luminaires shall utilize their in-built battery supply but
the battery shall be in the fully charged state at the commencement of each
assessment.
For the assessment of light output required following a 15 min period of operation, the
battery shall be in the fully charged state at the commencement of that period of
operation. Loss of supply shall be simulated immediately afterwards for assessment of
compliance with the light output criteria.
2.4 IDENTIFICATION SYMBOL The identification symbol illustrated in Figure 2.1
shall be displayed on each emergency luminaire in a position where it will be visible
when installed. It shall not be fixed to the diffuser or other optical control media.
The symbol shall be at least 10 mm in diameter, black on a white background, as shown
in Figure 2.1.
Notwithstanding the above, the symbol need not be displayed on the luminaire if this is
impractical because of the nature of the luminaire or its construction, e.g. certain forms of
recessed luminaire for use in suspended ceilings where no element of the luminaire body
is displayed on the underside of the ceiling surface.
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AS / NZS 2293.3:1995

8

NOTE: The symbol is that recommended for emergency luminaires in AS 1102.8.

FIGURE 2.1

IDENTIFICATION SYMBOL FOR EMERGENCY LUMINAIRES

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2.5 MARKING In addition to the information required by AS 3137, each emergency
luminaire shall be legibly and durably marked with the following information, as
applicable:
(a)

Luminaire classification(s) determined in accordance with Appendix C.

(b)

Marking to identify the orientation of the C 0 plane through the luminaire (see
Appendix C) where the luminaire has a different classification in the C0 and C90
planes.

(c)

The identification symbol specified in Clause 2.4.

(d)

Information necessary to ensure correct lamp replacement.

(e)

Warning notice regarding isolation of the electrical supply or supplies, if necessary,
to ensure the safety of persons working on the emergency luminaire or the integrity
of operation of the emergency luminaire.

The marking required by Item (b) shall be clearly visible during installation and
subsequent inspection of the completed lighting system. The C 0 plane may be designated
by the location of the identification symbol of Figure 2.1 at the appropriate position on
the surroundings of the luminaire body.

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S E C T I O N

3

G E N E R A L R E Q U I R E M E N T S
E X I T S I G N S

AS / NZS 2293.3:1995

F O R

3.1 GENERAL This Section refers to two basic types of exit sign, namely, internallyilluminated and externally-illuminated. Requirements relating to the use of these exit signs
are set out in Section 5 of AS/NZS 2293.1
3.2 COMPLIANCE WITH AS 3137 Exit signs shall comply with the requirements of
AS 3137 unless otherwise specified in this Standard.
NOTE: For self-contained exit signs, see also the requirements of Clause 4.7.

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3.3 GENERAL PRESENTATION
3.3.1 In Australia Exit signs shall only bear the legend ‘EXIT’ together with
directional arrows, where required. Where used, directional arrows shall be positioned in
such a way that—
(a) the projection of the arrow will not intersect any part of the legend; and
(b) a clearance of at least 25 mm is provided between the arrow and the legend.
NOTE: The adoption of exit signs of the pictogram form, without the legend ‘EXIT’, is under
consideration (see Preface).

3.3.2 In New Zealand The general presentation of exit signs shall comply with
Approved Document F8 of the New Zealand Building Code.
3.4 FORM AND DIMENSIONS
3.4.1 In Australia
3.4.1.1 Internally-illuminated exit signs Internally-illuminated exit signs shall comprise
a contrasting transilluminated legend and background of the form and dimensions given in
Figure 3.1.
NOTE: Exit signs of the dimensions specified in Figure 3.1 are suitable for viewing distances of
up to 24 m. Proportionately larger signs may be required where longer viewing distances apply
(see Section 5 of AS/NZS 2293.1).

3.4.1.2 Externally-illuminated exit signs For externally-illuminated exit signs, the form
and dimensions of the lettering shall comply with either Figure 3.1 or AS 1319. However,
the letter height and background dimensions shall be not less than those specified in
Figure 3.1.
3.4.2 In New Zealand The form and dimensions of exit signs shall comply with
Approved Document F8 of the New Zealand Building Code.
3.5 ILLUMINATION
3.5.1 General Exit signs and directional arrows, where incorporated, shall be
illuminated in accordance with Clause 3.5.2 or Clause 3.5.3, as appropriate. The sign shall
present a uniform appearance when viewed from within the range of directions from
which it is required to be seen.
Exit signs shall comply with the requirements of Clause 2.3 but the reference value shall
be taken as the luminance of the sign when stable photometric conditions have been
attained.
3.5.2 Internally-illuminated exit signs Internally-illuminated exit signs shall be of a
type which complies with the following requirements:
(a) For exit signs with a white legend and green background —
(i)
the luminance of the background in the area within 25 mm of the legend
shall be not less than 8 cd/m 2;
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AS / NZS 2293.3:1995

(b)

10

(ii)

the ratio of the luminance of the legend to that of the adjacent background
shall be not less than 4:1; and

(iii)

the variation in luminance within the legend and within the background shall
be not more than 5:1.

For exit signs with a green legend and an opaque background —
(i)

the luminance of the legend shall lie within the range 2 cd/m2 to 25 cd/m2;
and

(ii)

the variation in luminance within the legend shall be not more than 5:1.

The above requirements shall apply when the exit sign is operated under the most
unfavourable conditions, i.e. immediately after being tested for compliance with the
requirements for illumination at switch on in Clause 2.3 or at the voltage which applies
after operation for the initial duration specified in Section 2 of AS/NZS 2293.1:
Luminances shall be measured within 5° from the normal to the plane containing the
legend, with a meter which provides a circular measurement field having a diameter of
between 75% and 85% of the letter stroke thickness of the legend.

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3.5.3

Externally-illuminated exit signs

NOTE: Requirements for externally-illuminated exit signs are specified in Section 5 of
AS/NZS 2293.1, not in this Standard, because the illumination of these signs is a function of
how they are installed, being dependent on the light output distribution of the luminaires used
and arrangement of the luminaires relative to the signs.

NOTES:
1

The dimensions illustrated are minima; larger signs may be required but the dimensions, including the
background, should be increased in proportion to those specified (see Section 5 of AS/NZS 2293.1).

2

The tail of the arrow is optional. The arrow position shown is illustrative only.
DIMENSIONS IN MILLIMETRES

FIGURE 3.1

FORM AND DIMENSIONS OF EXIT SIGNS (IN AUSTRALIA)
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