ISO 7176-30:2018

INTERNATIONAL ISO
STANDARD 7176-30
First edition
2018-12
Wheelchairs —
Part 30:
Wheelchairs for changing occupant
posture — Test methods and
requirements
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Test methods . 3
4.1 General principle . 3
4.2 Test preparation . 3
4.3 Determining the maximum drivable configuration . 4
4.4 Order of testing . 4
5 General requirements . 4
5.1 Application . 4
5.2 Static stability . 4
5.3 Dynamic stability of electrically powered wheelchairs . 5
5.4 Efficiency of brakes . 6
5.5 Overall dimensions . 6
5.6 Strength tests. 6
5.6.1 General. 6
5.6.2 Multi drum test . 6
5.6.3 Seat impact strength - Test method . 7
5.7 Wheelchairs for use as a seat in a motor vehicle . 8
5.8 Climatic tests for wheelchairs for changing occupant postures . 9
5.9 Back support strength . 9
5.10 Requirements for the operation force of levers . 9
6 Specific requirements for electrically powered wheelchairs and scooters. .9
6.1 Electrical, power and other controls and mechanisms . 9
6.2 Theoretical range/postural cycles of electrically powered wheelchairs and
scooters due to the energy consumption of the OABSS .10
6.2.1 For OABSS’s which share a power source with the wheelchair’s drive
system — Modified theoretical range.10
6.2.2 For OABSS’s which have a separate power source dedicated to the OABSS
— Theoretical cycle capacity . .10
6.3 Test methods of maximum speed of electrically powered wheelchairs .11
6.4 Obstacle climbing — Determination of obstacle climbing ability of electrically
powered wheelchairs .11
7 Specific requirements for wheelchairs with either an electrically or manually
operated body support system for occupant not exceeding 150 kg - Back support
applied wheelchair tip fatigue strength .11
7.1 General .11
7.2 Requirement .11
7.3 Test method .12
8 Back-support adjustment force test (unlocked) for reclining type wheelchair .13
9 Specific requirements for wheelchairs with stand-up mechanisms .14
9.1 Strength test for wheelchairs that incorporate a stand-up mechanism with lower
leg support .14
9.1.1 General.14
9.1.2 Test methods .14
9.2 Strength test for the wheelchairs for changing occupant posture which has stand-
up mechanism with hip/upper torso support .15
9.2.1 General.15
9.2.2 Test methods .16
10 Requirements for information disclosure .17
11 Test report .17
Annex A (informative) Recommendations for lower leg support of the wheelchair with
stand-up mechanism .19
Bibliography .20
iv © ISO 2018 – All rights reserved

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
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on the ISO list of patent declarations received (see www .iso .org/patents).
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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 173, Assistive products, Subcommittee
SC 1, Wheelchairs.
A list of all parts in the ISO 7176 series can be found on the ISO website.
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.
Introduction
Wheelchairs which can alter the occupant's position in relation to the ground, in one or multiple planes
can be an important factor in the appropriate selection of a wheelchair for people with disability and/or
aged persons. These wheelchairs and their adjustable body support system can allow the occupant to
engage in their environment, or assist in altering pressure distribution and/or postural position.
These features include but are not limited to:
— recline (where the angle of a back support can be changed),
— tilt (where the angle of a seat surface can be changed),
— elevate (where the seat height changes in the vertical plane), and
— stand-up function (where the back support, seat surface, arm supports, lower leg and foot supports
can be changed to support the occupant in a standing position).
vi © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 7176-30:2018(E)
Wheelchairs —
Part 30:
Wheelchairs for changing occupant posture — Test
methods and requirements
1 Scope
This document specifies the test methods and requirements for determining the safety and
performance of a manual and/or power wheelchair that incorporates technology to alter the posture
of the wheelchair occupant, which are either electrically or manually operated by the occupant or
assistant during normal wheelchair use. This can include recline, tilt, elevate and stand-up mechanisms
or a combination of these. In order for a wheelchair to be able to recline, tilt, elevate and/or stand-
up, the wheelchair requires additional mechanisms and mechanical structures to allow these features
to operate. This document specifies the different functional and strength tests required to test these
wheelchairs in critical configurations of their adjustable range.
This document does n
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