Tips for assistive products for walking -- Requirements and test methods

ISO 24415-2:2011 specifies requirements and test methods for the durability of tips for crutches. ISO 24415-2:2011 is not applicable to tips manufactured for special purposes e.g. walking on ice and snow. The requirements and test method are based on tips being used with an ordinary gait on dry and flat walking surfaces.

Embouts pour produits d'assistance à la marche -- Exigences et méthodes d'essai

General Information

Status
Published
Publication Date
02-Aug-2011
Current Stage
6060 - International Standard published
Start Date
12-Jul-2011
Completion Date
03-Aug-2011
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ISO 24415-2:2011 - Tips for assistive products for walking -- Requirements and test methods
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INTERNATIONAL  ISO
STANDARD 24415-2
First edition
2011-08-15
Tips for assistive products for walking —
Requirements and test methods —
Part 2:
Durability of tips for crutches
Embouts pour produits d’assistance à la marche — Exigences et
méthodes d’essai —
Partie 2: Durabilité des embouts de béquilles
Reference number
ISO 24415-2:2011(E)
 ISO 2011
---------------------- Page: 1 ----------------------
ISO 24415-2:2011(E)
COPYRIGHT PROTECTED DOCUMENT
©  ISO 2011

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
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E-mail copyright@iso.org
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Published in Switzerland
ii © ISO 2011 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 24415-2:2011(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

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.

ISO 24415-2 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability.

ISO 24415 consists of the following parts, under the general title Tips for assistive products for walking —

Requirements and test methods:
—  Part 1: Friction of tips
—  Part 2: Durability of tips for crutches
© ISO 2011 – All rights reserved  iii
---------------------- Page: 3 ----------------------
ISO 24415-2:2011(E)
Introduction

The characteristics of tips attached to the bottom of assistive products for walking are essential to ensuring

user safety. The tips are continuously and repeatedly subjected to load and friction while walking; durability

against this repeated load is important both for safety and for cost effectiveness.

Tips are used on many different assistive products for walking, including canes, walking sticks, crutches,

walking frames, rollators, and walking tables. They are produced in many different sizes and are made of many

different materials, depending on the sort of assistive products for walking to which they are applied. A variety

of bottom shapes are available on the market for the many kinds of assistive products for walking.

Generally, durability of rubber is estimated based on a wearing resistance test using test pieces rather than

finished goods. However, tips for assistive products for walking are used in several different ways, therefore it

is favourable to perform the test on manufactured tips (not manufactured test pieces) to obtain realistic data.

For example, tips for crutches can endure less abrasion, because the load on tips for crutches is higher than

that on tips for other assistive products for walking.

This part of ISO 24415 specifies requirements and test methods for durability of tips for crutches to enable developers,

manufacturers, distributors, and health care providers to determine whether tips have the necessary durability.

iv © ISO 2011 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 24415-2:2011(E)
Tips for assistive products for walking — Requirements and
test methods —
Part 2:
Durability of tips for crutches
1 Scope

This part of ISO 24415 specifies requirements and test methods for the durability of tips for crutches, and is

not applicable to tips manufactured for special purposes. The requirements and test method are based on tips

being used with an ordinary gait on dry and flat walking surfaces.

Crutches include elbow crutches, forearm support crutches, and axillary crutches, as described in ISO 9999.

NOTE  Special purposes might include walking on ice and/or snow.
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 9999, Assistive products for persons with disability — Classification and terminology

EN 13036-4, Road and airfield surface characteristics — Test methods — Part 4: Method for measurement of

slip/skid resistance of a surface — The pendulum test
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
tip
that part of the crutch which is in contact with ground
NOTE  See Figure 1.
3.2
test track
surface against which the tip is to be tested
3.3
actuator
mechanism to
...

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