ISO 6563

Rear load carrier for wheeled vehicles — Requirements and test methods

Porte-charges arrière pour véhicules à roues — Exigences et méthodes d'essai

General Information

• Status: Not Published
• ICS: 43.040.60 - Bodies and body components
• ICS: 43.100 - Passenger cars. Caravans and light trailers
• Technical Committee: ISO/TC 22/SC 40 - Specific aspects for light and heavy commercial vehicles, busses and trailers
• Drafting Committee: ISO/TC 22/SC 40 - Specific aspects for light and heavy commercial vehicles, busses and trailers
• Current Stage: 6000 - International Standard under publication
• Start Date: 30-May-2025
• Completion Date: 31-May-2025

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 6563
ISO/TC 22/SC 40
Rear load carrier for wheeled
Secretariat: UNI
vehicles — Requirements and test
Voting begins on:
methods
2025-04-03
Porte-charges arrière pour véhicules à roues — Exigences et
Voting terminates on:
méthodes d'essai
2025-05-29
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 6563:2025(en) © ISO 2025

FINAL DRAFT
ISO/FDIS 6563:2025(en)
International
Standard
ISO/FDIS 6563
ISO/TC 22/SC 40
Rear load carrier for wheeled
Secretariat: UNI
vehicles — Requirements and
Voting begins on:
test methods
Porte-charges arrière pour véhicules à roues — Exigences et
Voting terminates on:
méthodes d'essai
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 SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 6563:2025(en) © ISO 2025

ii
ISO/FDIS 6563:2025(en)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification related to the fastening . 3
5 Requirements and test methods . 4
5.1 General test conditions .4
5.1.1 Measurement uncertainties .4
5.1.2 Description and test load .4
5.1.3 Interfaces to the vehicle .4
5.1.4 Test samples and sequence .5
5.2 Lighting – Signalling .7
5.3 Rear license plate on vehicle .7
5.4 External projections .7
5.5 Materials .7
5.5.1 General material requirements .7
5.5.2 Corrosion resistance .8
5.5.3 Weather resistance .8
5.5.4 Cold resistance of plastic parts and attachment elements .9
5.5.5 Heat resistance of plastic parts (apart from transport containers) .9
5.5.6 Functional safety of transport containers .9
5.6 Static load bearing capacity (vertical force F , longitudinal force F and lateral force F ) .10
z x y
5.6.1 General requirements .10
5.6.2 Test setup for static tension tests .10
5.6.3 Test loads .10
5.6.4 Test implementation .11
5.7 Dynamic test . 12
5.7.1 Load state during dynamic tests . 12
5.7.2 General requirements . 12
5.7.3 Test methods for “Belgian pavé” . . 12
5.7.4 Lane change test . 13
5.7.5 Crash simulation test . 13
5.7.6 Brake test . 15
5.7.7 Resistance when driving over a speed bump (sleeping policeman) . 15
5.8 Resistance of straps and mechanical fixing parts for attaching bicycles to the rear load
carrier in respect to the elongation force F .16
s
5.8.1 Resistance of textile straps, belts, metallic straps .16
5.8.2 Resistance of other elements fixing load to the carrier (clamps, clips, etc.) .17
6 Product marking .18
6.1 Requirement .18
6.2 Testing .18
7 User information .18
7.1 Assembly instructions .18
7.2 User instructions .19
Annex A (normative) Test bicycle .20
Annex B (normative) Construction specification for “Belgian pavé” test rack .22
Annex C (informative) Types of rear load carriers .24
Annex D (informative) Rear license plate .28
Annex E (informative) Measurement of displacements .30
Annex F (informative) Classification of coupling balls for towing hitches .34

iii
ISO/FDIS 6563:2025(en)
Annex G (informative) Typical test setup for the static and crash test .35
Bibliography .39

iv
ISO/FDIS 6563:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 40, Specific
aspects for light and heavy commercial vehicles, busses and trailers.
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.ht
...

ISO/DISFDIS 6563:2023(E)
ISO/TC 22/SC 40
Secretariat: UNI
Date: 2025-03-20
Rear load carrier for wheeled vehicles — Requirements and test
methods
Porte-charges arrière pour véhicules à roues — Exigences et méthodes d'essai
FDIS stage
ISO/DISFDIS 6563:2023(E2025(en)
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
Fax: [phone]
EmailE-mail: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ii
ISO/DISFDIS 6563:2023(E2025(en)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification related to the fastening . 4
5 Requirements and test methods . 5
5.1 General test conditions . 5
5.2 Lighting – Signalling . 9
5.3 Rear license plate on vehicle . 9
5.4 External projections . 9
5.5 Materials . 10
5.6 Static load bearing capacity (vertical force F , longitudinal force F and lateral force F ) . 12
z x y
5.7 Dynamic test . 15
5.8 Resistance of straps and mechanical fixing parts for attaching bicycles to the rear load
carrier in respect to the elongation force F . 20
s
6 Product marking . 23
6.1 Requirement . 23
6.2 Testing . 24
7 User information . 24
7.1 Assembly instructions . 24
7.2 User instructions . 25
Annex A (normative) Test bicycle . 26
Annex B (normative) Construction specification for “Belgian pavé” test rack . 29
Annex C (informative) Types of rear load carriers . 31
Annex D (informative) Rear license plate . 41
Annex E (informative) Measurement of displacements . 45
Annex F (informative) Classification of coupling balls for towing hitches. 55
Annex G (informative) Typical test setup for the static and crash test . 57
Bibliography . 62

iii
ISO/DISFDIS 6563:2023(E2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, 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 www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 40, Specific
aspects for light and heavy commercial vehicles, busses and trailers.
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 © ISO 2023 – All rights reserved
iv
DRAFT INTERNATIONAL STANDARD ISO/DIS 6563:2023(E)

Rear load carrier for wheeled vehicles — Requirements and test
methods
1 Scope
This document specifies the minimum functional safety requirements for rear load carriers intended for
attachment on the rear of passenger cars and light commercial vehicles with a maximum gross weight up to
3,5 t as defined in ISO 1176. This document does not apply to incomplete and supplemental rear load carriers.
This document establishes technical specifications and test methods that offer both road users and users of
the rear load carriers a minimum level of functional safety when the rear load carriers are being used in
accordance with the manufacturer’s instructions.
Moreover, the requirements of this document complement the directives from UNECE-‑R 26 and its successive
amendments concerning these products.
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 1103, Road vehicles — Coupling balls for caravans and light trailers — Dimensions
ISO 1431--1, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and dynamic
strain testing
ISO 3888--2, Passenger cars — Test track for a severe lane-change manoeuvre — Part 2: Obstacle avoidance
ISO 179--1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact test
ISO 4892--2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
ISO 9227, Corrosion tests in artificial atmospheres — Salt spray tests
IEC/IEEE 82079--1, Preparation of information for use (instructions for use) of products — Part 1: Principles
and general requirements
EN 12195-2:2000, Load restraint assemblies on road vehicles - Safety - Part 2: Web lashing made from man-
made fibres
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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
ISO/DISFDIS 6563:2023(E2025(en)
— — IEC Electropedia: available at https://www.electropedia.org/
3.1 3.1
rear load carrier
device intended for carrying bicycles, cargo, luggage and goods on the rear of a wheeled vehicle
3.2 3.2
mass of the rear load carrier
m
s
mass ofwhich includes the rear load carrier including means of attachment and all mounted parts, in kg
Note 1 to entry: Mounted parts are lighting, adapters, straps, etc.
3.3 3.3
mass of the test load
m
tb
mass of representative test load, in kg
3.4 3.4
total mass
total 𝑚   =  𝑚   +  𝑚
total s tb
mass of the system comprising rear load carrier (3.1) and payload on vehicle, in kg
Note 1 to entry: Mounted parts are lighting, adapters, straps, etc.
Note 2 to entry: The total mass works on the total centre of gravity.
3.5 3.5
lifting force
F
z
force applied during testing to simulate the vertical components of the force caused by the vertical effect of
the load upward, +F , and downward, −F , as defined in Figure 1Figure 1,, in N
z z
2 © ISO 2023 – All rights reserved
ISO/DISFDIS 6563:2023(E2025(en)

Key
1 carrying surface
2 zero-‑Z-‑plane (horizontal reference plane)
3 zero-‑Y-‑plane (vertical longitudinal reference plane)
4 zero-‑X-‑plane (vertical lateral reference plane)
Figure 1 — Application directions of the forces F , F and F
x y z
ISO/DISFDIS 6563:2023(E2025(en)
3.6 3.6
longitudinal force
F
x
longitudinal force applied during testing to simulate the horizontal components of the forces directed
forwards, −F , and backwards, +F , in the direction of travel, which are caused by the load as defined in
x x
Figure 1Figure 1,, in N
3.7 3.7
lateral force
F
y
force applied during testing to simulate the horizontal components of the lateral forces directed to the right,
+F , and left, −F , in the direction of travel, which are caused by the load as defined in Figure 1Figure 1,, in N
y y
3.8 3.8
tensile force of the strap
F
s
force applied during testing to simulate the elongation behaviour caused by the load acting on the straps, in N
3.9 3.9
residual displacement at a given point
D
difference between the position before and after each step of the test, for the contact points of the rear load
carrier (3.1) to vehicle, in mm
Note 1 to entry: A contact point can be a supporting point, a fixation point or all other connecting points.
3.10 3.10
displacement of the load
d
difference between the position of each load on the rear load carrier (3.1) at each attachment point before and
after the relevant test, in mm
3.11 3.11
residual displacement of the internal components of rear load carriers
e
difference in the distance between the position of the interface to any component of the rear load carrier (3.1)
that ensures the interface to the vehicle, and the component of the rear load carrier on which it is mounted,
before and after the relevant test, in mm
3.12 3.12
functional safety
transport of the rear load carrier (3.1) so as to ensure road safety and prevent loss
4 Classification related to the fastening
Depending on the attachment to the vehicle, the following distinctions are made:
a) a) fitted to the trunk lid or rear wall (see Figures C.1C.1 and C.2C.2););
b) b) fitted to the hatch (see Figures C.3C.3 and C.4C.4););
c) c) fitted to the coupling ball or plate (see Figures C.5C.5, C.6, C.6 and C.7C.7););
4 © ISO 2023 – All rights reserved
ISO/DISFDIS 6563:2023(E2025(en)
d) d) fitted to the spare wheel (see Figure C.8C.8););
e) e) fitted on and in the chassis (see Figure C.9C.9).).
5 Requirements and test methods
5.1 General test conditions
5.1.1 Measurement uncertainties
Unless otherwise stated, the measurement uncertainties based on the N values shall correspond to the
following:
— forces and torques ±5 %;
— masses and weights ±2 %;
— dimensions ±2 %;
— angles ±2°;
— ti
...