ISO 18063-1:2016

Rough-terrain trucks — Visibility test methods and their verification — Part 1: Variable-reach trucks

ISO 18063-1:2016 applies to rough-terrain variable-reach trucks (hereinafter referred to as ?trucks') that have a specific seated operator's position on the left-hand side of the boom or centre position (excluding operator position on the right side of the boom). ISO 18063-1:2016 specifies a static test method for determining and evaluating the operator's visibility on a rectangular 1 m boundary around the rough-terrain variable-reach truck and on a 12 m radius visibility test circle. Performance requirements for visibility are specified in this document. ISO 18063-1:2016 does not apply to - trucks designed to handle freight containers (reach stackers), - articulated telescopic wheel loaders, - slewing trucks, or - lorry mounted trucks.

Chariots tout-terrain — Méthodes d'essai de la visibilité et leur vérification — Partie 1: Chariots à portée variable

General Information

• Status: Published
• Publication Date: 25-Oct-2016
• ICS: 53.060 - Industrial trucks
• Technical Committee: ISO/TC 110/SC 4 - Rough-terrain trucks
• Drafting Committee: ISO/TC 110/SC 4 - Rough-terrain trucks
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 06-Apr-2022

Relations

• Consolidated By: ISO 13588:2019 - Non-destructive testing of welds — Ultrasonic testing — Use of automated phased array technology
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 18063-1
First edition
2016-11-01
Corrected version
2017-02
Rough-terrain trucks — Visibility test
methods and their verification —
Part 1:
Variable-reach trucks
Chariots tout-terrain — Méthodes d’essai de la visibilité et leur
vérification —
Partie 1: Chariots à portée variable
Reference number
ISO 18063-1:2016(E)
©
ISO 2016

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ISO 18063-1:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

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ISO 18063-1:2016(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test apparatus . 5
4.1 Light source apparatus . 5
4.2 Vertical test object . 5
4.3 Observation mirror . 5
5 Truck test configuration . 5
5.1 Equipment of the truck . 5
5.2 Openings . 6
5.3 Position of the truck and load handling attachment . 6
6 Measurement procedure . 6
6.1 Test-surface marking and truck location on the test surface . 6
6.2 Positioning of the test apparatus . 7
6.3 Measurements of the maskings . 8
6.3.1 General. 8
6.3.2 Measurement at the visibility test circle . 8
6.3.3 Measurement at the rectangular 1 m boundary . 9
6.4 Requirements for derivative trucks .10
7 Evaluation method and performance criteria .10
7.1 Visibility performance criteria on the visibility test circle .10
7.2 Visibility performance criteria for the rectangular 1 m boundary .10
7.3 Visibility maskings that exceed the visibility performance criteria with direct view .10
8 Calculation method and computer simulation .10
9 Test report .10
9.1 Truck details .10
9.2 Drawing .11
10 Information for use .11
Annex A (informative) Light source spacing dimensions.13
Annex B (informative) Performance criteria for additional devices .14
Annex C (informative) Procedure for the determination of maskings at the visibility test
circle or the rectangular 1 m boundary.15
Annex D (informative) Examples of drawings for the test report .16
Bibliography .17
© ISO 2016 – All rights reserved iii

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ISO 18063-1:2016(E)

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 documents 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).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on 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 the following URL: www . i so .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 110, Industrial trucks, Subcommittee SC
4, Rough-terrain trucks.
This corrected version of ISO 18063-1:2016 incorporates the following corrections:
— the illustration of a load has been removed from Figure 3;
— the second and third title elements have been combined into a single element, Visibility test methods
and their verification;
— the listing of normative reference ISO 5053-1 has been transferred from the Bibliography to Clause 2.
— hyperlinked references to terminological databases have been added in Clause 3.
A list of all parts in the ISO 18063 series can be found on the ISO website.
iv © ISO 2016 – All rights reserved

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ISO 18063-1:2016(E)

Introduction
This document is a type-C standard as stated in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations or hazardous events
are covered are indicated in the Scope of this document.
When requirements of this type-C standard are different from those which are stated in type-A or -B
standards, the requirements of this type-C standard take precedence over the requirements of the
other standards for machines that have been designed and built according to the requirements of this
type-C standard.
© ISO 2016 – All rights reserved v

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INTERNATIONAL STANDARD ISO 18063-1:2016(E)
Rough-terrain trucks — Visibility test methods and their
verification —
Part 1:
Variable-reach trucks
1 Scope
This document applies to rough-terrain variable-reach trucks (hereinafter referred to as ‘trucks’) that
have a specific seated operator’s position on the left-hand side of the boom or centre position (excluding
operator position on the right side of the boom).
This document specifies a static test method for determining and evaluating the operator’s visibility
on a rectangular 1 m boundary around the rough-terrain variable-reach truck and on a 12 m radius
visibility test circle. Performance requirements for visibility are specified in this document.
This document does not apply to
— trucks designed to handle freight containers (reach stackers),
— articulated telescopic wheel loaders,
— slewing trucks, or
— lorry mounted trucks.
NOTE The method used does not capture all of the aspects of the operator’s visibility, but provides
information to assist in determining the acceptability of visibility from the truck.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5053-1, Industrial trucks — Terminology and classification — Part 1: Types of industrial trucks
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry — Seat
index point
ISO 12100, Safety of machinery — General principles for design — Risk assessment and risk reduction
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10896-1, ISO 5053-1 and
ISO 12100 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
© ISO 2016 – All rights reserved 1

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ISO 18063-1:2016(E)

3.1
test surface
area of compacted earth or firm surface that forms the ground reference plane for the visibility
measurements, with a gradient of (0 ± 2) %
3.2
light source position centre point
LSPCP
mid-point of the line between light sources, at 65 mm, 205 mm or 405 mm light source spacing, located
680 mm above and 20 mm in front of the seat index point (SIP)
Note 1 to entry: The seat index point is defined in ISO 5353, 3.1.
Note 2 to entry: See Figure 1.
Dimensions in millimetres
Key
LB light bar
LS light source spacing (see Annex A)
SIP seat index point
S seat
LSPCP light source position centre point
Figure 1 — Light source apparatus
3.3
test truck boundary
TTB
smallest rectangular boundary that can be placed around the vertical projection of the truck
Note 1 to entry: Truck dimensions do not include equipment such as working lights, mirrors, etc.
Note 2 to entry: See Figure 4.
3.4 Visibility-test locations
3.4.1
visibility test circle
VTC
circle with 12 m radius located on the ground reference plane with its centre vertically below the light
source position centre point (3.2), which is divided into six sectors of vision
Note 1 to entry: For the six sectors of vision, see 3.4.3 to 3.4.6.
2 © ISO 2016 – All rights reserved

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ISO 18063-1:2016(E)

Note 2 to entry: See Figure 2.
3.4.2
rectangular 1 m boundary
RB
line on the ground reference plane located at 1 m distance from the outside test truck boundary (3.3)
Note 1 to entry: See Figure 3 and Figure 4.
3.4.3
sector of vision A
segment of the visibility test circle (3.4.1) to the front of the truck, defined by a 9,5 m chord length for
the 12 m radius that is perpendicular to the longitudinal plane passing through the light source position
centre point (3.2) with the chord length bisected by the longitudinal plane
Note 1 to entry: See Figure 2.
3.4.4
sectors of vision B and C
segments of the visibility test circle (3.4.1) to the front of the truck outside sector of vision A (3.4.3) and
bounded by the transverse plane through the light source position centre point (3.2)
Note 1 to entry: See Figure 2.
3.4.5
sectors of vision D and E
segments of the visibility test circle (3.4.1) to the rear defined by an angle of 45° to both the right and left
sides of the longitudinal plane passing through the light source position centre point (3.2)
Note 1 to entry: See Figure 2.
3.4.6
sector of vision F
segment of the visibility test circle (3.4.1) to the rear between sectors of vision D and E (3.4.5)
Note 1 to entry: See Figure 2.
© ISO 2016 – All rights reserved 3

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ISO 18063-1:2016(E)

Key
VTC visibility test circle
LSPCP light source position centre point
RB rectangular 1 m boundary
TTB test truck boundary
X perpendicular to forward direction of the truck
Y forward direction of the truck
A, B, C, D, E, F sectors of vision
Figure 2 — Visibility test boundary
3.5
masking
shadow on the 12 m visibility test circle (3.4.1) or on the rectangular 1 m boundary (3.4.2) created
because parts of the base truck and/or its equipment block the light rays from the light sources
3.6
light source apparatus
test unit with at least two light sources that have adjustable light spacing, 360° rotatable, with its
rotation point at the light source position centre point (3.2) to simulate the range of eye positions for an
operator
Note 1 to entry: See Figure 1.
3.7
light source spacing
distance between the vertical centre axis of the considered light sources
3.8
light bar
rigid support on which the light sources are fixed and aligned
4 © ISO 2016 – All rights reserved

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ISO 18063-1:2016(E)

3.9
visibility performance criteria
criteria intended to minimize risk to persons in the vicinity of the truck during truck operation
Note 1 to entry: These visibility performance criteria are specified as maximum allowed maskings (3.5) at the
12 m visibility test circle (3.4.1) or at the rectangular 1 m boundary (3.4.2).
3.10 Direct and indirect visibility
3.10.1
direct visibility
visibility by direct line of sight as determined by the light from the light source
3.10.2
indirect visibility
visibility with the aid of mirrors or other visual aids, such as closed circuit TV (CCTV)
Note 1 to entry: For more information, see Annex B.
3.11
derivative truck
truck modified or fitted with equipment and/or attachments which can affect visibility
3.12
vertical test object
object used to evaluate the maskings (3.5) on the rectangular 1 m boundary (3.4.2), considered to be
two-dimensional, without depth
4 Test apparatus
4.1 Light source apparatus
The light source apparatus is capable of positioning a light bar horizontally with two light sources
(halogen light bulbs, laser, LEDs or equivalent). Each light source shall be horizontally movable on the
light bar from 32,5 mm up to 202,5 mm on each side of the light source position centre point. It shall
be possible to rotate the light bar through 360° around the light source position centre point. The light
source position centre point shall be located 680 mm above and 20 mm in front of the seat index point
(SIP) as described in ISO 5353. See Figure 1.
4.2 Vertical test object
The vertical test object shall be 1,5 m high, 100 mm wide and be maintained substantially perpendicular
to the tes
...

DRAFT INTERNATIONAL STANDARD
ISO/DIS 18063-1
ISO/TC 110/SC 4 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2015-08-05 2015-11-05
Rough-terrain trucks — Visibility — Test methods and
their verification —
Part 1:
Variable-reach trucks
Chariots tout-terrain — Visibilité — Méthodes d’essai et leur vérification —
Partie 1: Chariots à portée variable
ICS:
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 18063-1:2015(E)
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 SUPPORTING DOCUMENTATION. ISO 2015

---------------------- Page: 1 ----------------------
ISO/DIS 18063-1:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2015 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/WD 18063-1
Contents Page
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test apparatus . 5
4.1 Light source apparatus . 5
4.2 Vertical test object . 5
4.3 Observation mirror . 5
5 Truck test configuration . 5
5.1 Equipment of the truck . 5
5.2 Openings . 6
5.3 Position of the truck and load handling attachment . 6
6 Measurement procedure . 6
6.1 Test-surface marking and truck location on the test surface . 6
6.2 Positioning of the test apparatus . 7
6.3 Measurements of the maskings . 8
6.4 Requirements for derivative trucks . 10
7 Evaluation method and performance criteria . 10
7.1 Visibility performance criteria on the visibility test circle . 10
7.2 Visibility performance criteria for the rectangular 1 m boundary . 10
7.3 Visibility maskings that exceed the visibility performance criteria with direct view . 11
8 Calculation method and computer simulation . 11
9 Test report . 11
9.1 Truck details . 11
9.2 Drawing. 11
10 Information for use . 11
Annex A (informative) Light source spacing dimensions . 15
Annex B (informative) Performance criteria for additional devices . 16
B.1 Performance criteria for mirrors . 16
B.2 Performance criteria for CCTV system . 16
Annex C (informative) Procedure for the determination of maskings at the visibility test circle or
the rectangular 1 m boundary . 17
Annex D (informative) Examples of drawings for the test report . 18

© ISO 2011 – All rights reserved iii

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ISO/DIS 18063-1
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 documents 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).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment,
as well as information about ISO’s adherence to the WTO principles in the Technical Barriers to Trade (TBT)
see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 110, Industrial trucks, Subcommittee SC 4, Rough-
.
terrain trucks

ISO 18063 consists of the following parts, under the general title Rough-terrain trucks -- Visibility -- Test
methods and their verification
-- Part 1: Variable-reach trucks
-- Part 2: Rotating trucks

iv © ISO 2011 – All rights reserved

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ISO/WD 18063-1
Introduction
This ISO standard is a "Type C" standard as defined in ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and events are covered are
indicated in the scope of this standard.
Where there are provisions of this type-C standard which are different from those which are stated in type A or
B standards, the provisions of this type-C standard take precedence over the provisions of the other standards,
but only for trucks that have been designed and built in accordance with the provisions of this type-C standard.

© ISO 2011 – All rights reserved v

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ISO/WD 18063-1
Rough-terrain trucks — Visibility — Test methods and their
verification
1 Scope
This standard applies to rough-terrain variable-reach trucks (herein-after referred to as ‘trucks’) that have a
specific seated operator’s position, on the left hand side of the boom, or centre position (excluding operator
position on the right side of the boom).
For the purpose of this standard, where specified, truck dimensions do not include equipment such as working
lights, mirrors, etc.
This standard specifies a static test method for determining and evaluating the operator’s visibility on a
rectangular 1 m boundary close around the rough-terrain variable-reach truck and on a 12 m visibility test
circle. Performance requirements for visibility are specified in this standard.

This standard does not apply to
- trucks designed to handle freight containers (reach stackers)
- articulated telescopic wheel loaders
- slewing trucks
- lorry mounted trucks
Note: The method used does not capture all of the aspects of the operator’s visibility, but provides information
to assist in determining the acceptability of visibility from the truck.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3411, Earth-moving machinery — Human physical dimensions of operators and minimum operator space
envelope
ISO 5353, Earth-moving machinery, and tractors and machinery for agriculture and forestry — Seat index
point
ISO 10896-1:2012, Rough-terrain trucks - Safety requirements and verification - Part 1: Variable-reach trucks
ISO 12100:2010, Safety of machinery — Basic concepts, general principles for design — General principles
for design – Risk assessment and risk reduction

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10896-1, ISO 5053 and ISO 12100
and the following apply.
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ISO/DIS 18063-1
3.1
test surface
area of compacted earth or firm surface that forms the ground reference plane for the visibility measurements,
with a gradient of (0 ± 2) %
3.2
light source position centre point (LSPCP)
mid-point of the line between light sources, at 65 mm, 205 mm or 405 mm light spacing, located 680 mm
above and 20 mm in front of the seat index point (SIP) as defined in ISO 5353
NOTE 1 to entry see Figure 1
Dimensions in millimetres

Key
LB  light bar
LS  light source spacing (see Annex A)
SIP  seat index point
S  seat
LSPCP light source position centre point
Figure 1 — Light source apparatus

3.3
test truck boundary (TTB)
smallest rectangular boundary that can be placed around the vertical projection of the truck

NOTE 1 to entry see Figure 4
3.4 Visibility-test locations

3.4.1
visibility test circle (VTC)
circle with 12 m radius located on the ground reference plane with its centre vertically below the light source
position centre point. Circle is divided into six visibility sectors
NOTE 1 to entry see Figure 2

2 © ISO 2011 – All rights reserved

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ISO/WD 18063-1
3.4.2
rectangular 1 m boundary (RB)
line on the ground reference plane located at 1 m distance from the outside test truck boundary
NOTE 1 to entry see Figures 3 and 4
3.4.3
sector of vision A
segment of the visibility test surface to the front of the truck, defined by a 9,5 m chord length for the 12 m
radius that is perpendicular to the longitudinal plane passing through the light source position centre point with
the chord length bisected by the longitudinal plane
NOTE 1 to entry see Figure 2
3.4.4
sectors of vision B and C
segments of the visibility test surface to the front of the truck outside sector A and bounded by the transverse
plane through the light source position centre point
NOTE 1 to entry see Figure 2
3.4.5
sectors of vision D and E
segments of the visibility test surface to the rear defined by an angle of 45° to both the right and left sides of
the longitudinal plane passing through the light source position centre point
NOTE 1 to entry see Figure 2
3.4.6
sector of vision F
segment of the visibility test circle to the rear between sectors D and E
NOTE 1 to entry see Figure 2
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ISO/DIS 18063-1

Key
VTC visibility test circle
LSPCP light source position centre point
RB rectangular 1m boundary
TTB test truck boundary
X perpendicular to forward direction of the truck
Y forward direction of the truck
A, B, C, D, E, F sectors of vision
Figure 2 — Visibility test boundary

3.5
masking
shadow on the 12 m visibility test circle or on the rectangular 1 m boundary created because parts of the base
truck and/or its equipment block the light rays from the light sources
3.6
light source apparatus
test unit with at least two light sources, which are horizontally movable and 360° rotatable, with its rotation
point at the light source position centre point (LSPCP) intended to simulate the position of the operator eyes,
and the possible movements of their head
3.7
light source spacing
distance between the vertical centre axis of the considered light sources
3.8
light bar
rigid support on which the light sources are fixed and aligned
4 © ISO 2011 – All rights reserved

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ISO/WD 18063-1
3.9
visibility performance criteria
criteria for the design of trucks to enable an operator to see objects in the area around the truck during
operation and specified as maximum allowed maskings at the 12 m visibility test circle or at the rectangular 1
m boundary
3.10 Direct and indirect visibility

3.10.1
direct
visibility by direct line of sight as determined by the light from the light source
3.10.2
indirect
visibility with the aid of mirrors or other visual aids, such as closed circuit TV (CCTV)
NOTE 1 to entry for more information, see Annex B.
3.11
derivative truck
truck modified or fitted with equipment and/or attachments which can affect visibility
3.12
vertical test object
an object used to evaluate the maskings on the rectangular 1 m boundary and is considered as 2-dimensional,
without depth.

4 Test apparatus
4.1 Light source apparatus
The light source apparatus is capable of positioning a light bar horizontally with two light sources (halogen
light bulbs, laser, LEDs or equivalent). Each light source shall be horizontally movable on the light bar from
32,5 mm up to 202,5 mm on each side of the light source position centre point. It shall be possible to rotate
the light bar through 360° around the light source position centre point. The light source position centre point
shall be located 680 mm above and 20 mm in front of the seat index point (SIP) as described by ISO 5353
(see Figure 1).
4.2 Vertical test object
The vertical test object shall be 1,5 m high, 100 mm wide and be maintained substantially perpendicular to the
test surface throughout the tests.
4.3 Observation mirror
To determine the maskings on the visibility test circle or the rectangular 1 m boundary, a hand held mirror can
be used to detect the line-of-sight between the light source and the ground reference plane or vertical test
object. The observation mirror shall have a maximum size of 100 mm x 150 mm.
5 Truck test configuration
5.1 Equipment of the truck
The truck shall be equipped with standard fork arms and equipment according to the manufacturer’s standard
specification.
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ISO/DIS 18063-1
5.2 Openings
All truck openings, such as doors and windows, shall be closed.
5.3 Position of the truck and load handling attachment
The truck shall be positioned on the test surface according to Figure 2
The boom shall be fully retracted and its height adjusted so that dimension A (see Figure 3) is respected with
the upper face of the forks above and su
...