SIST EN ISO 11199-2:2005

Walking aids manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:2005)

To include requirements and test methods for brakes, fit of rubber tips and handgrips, strength of resting seats, secure locking of mechanisms, safe allowable handle adjustment and safety for the user when ancillary equipment is added.

Gehhilfen für beidarmige Handhabung - Anforderungen und Prüfverfahren - Teil 2: Rollatoren (ISO 11199-2:2005)

Dieser Teil der ISO 11199 legt die Anforderungen an und Verfahren für die Ermüdungsprüfung, die Prüfung der statischen Beanspruchbarkeit, Bremsbarkeit und Kippsicherheit für Rollatoren mit Rädern fest, die als mit den Händen bediente Gehhilfen mit Rädern verwendet werden, ohne Zubehör, sofern es in dem bestimmten Prüfverfahren nicht anders festgelegt ist. Dieser Teil der ISO 11199 enthält außerdem Anforderungen an Sicherheit, Ergonomie, Leistungsfähigkeit und an die Bedienungsanleitung, einschließlich Kennzeichnung und Aufschriften.
Die Anforderungen und Prüfungen beruhen auf dem alltäglichen Gebrauch von Rollatoren als Gehhilfen, die für Personen mit einem vom Hersteller festgelegtem Höchstgewicht, vorgesehen sind. Dieser Teil der ISO 11199 enthält Rollatoren, die für Personen mit einem Körpergewicht von mindestens 35 kg vorgesehen sind.
Dieser Teil der ISO 11199 gilt nicht für Rollatoren mit einer waagerechten Unterarmstütze, die nach ISO 11199 3 als Gehwagen einzuteilen sind.
ANMERKUNG   Weiterführende Empfehlungen zu den Anforderungen sind in diesem Teil der ISO 11199 Anhang A aufgeführt.

Aides a la marche manipulées avec les deux bras - Exigences et méthodes d'essai - Partie 2: Déambulateurs (ISO 11199-2:2005)

L'ISO 11199-2:2005 spécifie les exigences et méthodes d'essai relatives à la stabilité statique, aux dispositifs de freinage, à la résistance statique et à la fatigue des déambulateurs utilisés comme aides à la marche dotées de roues, manipulées avec les mains, sans accessoires sauf spécification contraire dans un mode opératoire particulier. L'ISO 11199-2:2005 spécifie également les exigences en matière de sécurité, d'ergonomie, de performances et d'informations fournies par le fabricant (marquage et étiquetage compris).
Les exigences et les essais sont basés sur un usage quotidien des déambulateurs comme aides à la marche, pour un poids maximal de l'utilisateur conforme aux spécifications du fabricant. L'ISO 11199-2:2005 comprend les déambulateurs spécifiés pour les utilisateurs ayant un poids (une masse) d'au moins 35 kg.
La présente partie de l'ISO 11199 ne s'applique pas aux déambulateurs dotés de supports d'avant-bras horizontaux, classés en tant que tables de marche pour lesquelles l'ISO 11199-3 s'applique.

Pripomočki za hojo, ki se upravljajo z obema rokama - Zahteve in preskusne metode - 2. del: Rolatorji (ISO 11199-2:2005)

General Information

• Status: Published
• Publication Date: 30-Jun-2005
• ICS: 11.180.10 - Aids and adaptation for moving
• Technical Committee: VAZ - Healthcare
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jul-2005
• Due Date: 01-Jul-2005
• Completion Date: 01-Jul-2005
• Ref Project: EN ISO 11199-2:2005 - Walking aids manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:2005)

Relations

• Replaced By: SIST EN ISO 11199-2:2021 - Assistive products for walking manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:2021)
• Effective Date: 01-Sep-2021
• Replaced By: SIST EN ISO 11199-2:2021 - Assistive products for walking manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:2021)
• Effective Date: 08-Jun-2022
• Replaces: SIST EN ISO 11199-2:2000 - Walking aids manipulated by both arms - Requirements and test methods - Part 2: Rollators (ISO 11199-2:1999)
• Effective Date: 01-Jul-2005

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11199-2:2005
01-julij-2005
1DGRPHãþD
SIST EN ISO 11199-2:2000
3ULSRPRþNL]DKRMRNLVHXSUDYOMDMR]REHPDURNDPD=DKWHYHLQSUHVNXVQH
PHWRGHGHO5RODWRUML,62
Walking aids manipulated by both arms - Requirements and test methods - Part 2:
Rollators (ISO 11199-2:2005)
Gehhilfen für beidarmige Handhabung - Anforderungen und Prüfverfahren - Teil 2:
Rollatoren (ISO 11199-2:2005)
Aides a la marche manipulées avec les deux bras - Exigences et méthodes d'essai -
Partie 2: Déambulateurs (ISO 11199-2:2005)
Ta slovenski standard je istoveten z: EN ISO 11199-2:2005
ICS:
11.180.10 3ULSRPRþNLLQSULODJRGLWYH]D Aids and adaptation for
JLEDQMH moving
SIST EN ISO 11199-2:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11199-2:2005

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SIST EN ISO 11199-2:2005



EUROPEAN STANDARD
EN ISO 11199-2

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2005
ICS 11.180.10 Supersedes EN ISO 11199-2:1999
English version
Walking aids manipulated by both arms - Requirements and test
methods - Part 2: Rollators (ISO 11199-2:2005)
Aides à la marche manipulées avec les deux bras - Gehhilfen für beidarmige Handhabung - Anforderungen und
Exigences et méthodes d'essai - Partie 2: Déambulateurs Prüfverfahren - Teil 2: Rollatoren (ISO 11199-2:2005)
(ISO 11199-2:2005)
This European Standard was approved by CEN on 14 April 2005.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.




EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11199-2:2005: E
worldwide for CEN national Members.

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SIST EN ISO 11199-2:2005
EN ISO 11199-2:2005 (E)



Foreword

This document (EN ISO 11199-2:2005) has been prepared by Technical Committee ISO/TC
173 "Technical systems and aids for disabled or handicapped persons" in collaboration with
Technical Committee CEN/TC 293 "Technical aids for disabled persons", the secretariat of
which is held by SIS.

This document supersedes EN ISO 11199-2:1999.

This European Standard shall be given the status of a national standard, either by publication
of an identical text or by endorsement, at the latest by October 2005, and conflicting national
standards shall be withdrawn at the latest by October 2005.


According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.


Endorsement notice

The text of ISO 11199-2:2005 has been approved by CEN as EN ISO 11199-2:2005 without
any modifications.


2

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SIST EN ISO 11199-2:2005


INTERNATIONAL ISO
STANDARD 11199-2
Second edition
2005-04-15

Walking aids manipulated by both
arms — Requirements and test
methods —
Part 2:
Rollators
Aides à la marche manipulées avec les deux bras — Exigences et
méthodes d'essai —
Partie 2: Déambulateurs




Reference number
ISO 11199-2:2005(E)
©
ISO 2005

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
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©  ISO 2005
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
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ii © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Requirements . 7
4.1 Manoeuvrability. 7
4.2 Stability . 7
4.3 Brakes . 7
4.4 Handgrip. 8
4.5 Leg section and tip . 8
4.6 Resting seat. 8
4.7 Mechanical durability. 8
4.8 Adjusting devices . 8
4.9 Folding mechanism . 9
4.10 Adjustment of handles . 9
4.11 Materials and finish. 9
5 Test methods. 9
5.1 General. 9
5.2 Sampling and inspection. 9
5.3 Forward-direction stability test . 10
5.4 Backward-direction stability test. 11
5.5 Sideway-direction stability test . 11
5.6 Accessory equipment. 12
5.7 Brake tests. 13
5.8 Handgrip test . 14
5.9 Rubber tip test. 14
5.10 Resting seat test . 14
5.11 Static loading test . 14
5.12 Fatigue test . 16
5.13 Final inspection. 17
6 Information supplied by the manufacturer. 17
6.1 General. 17
6.2 Information marked on the product and / or accessories . 17
6.3 Documentation . 18
7 Test report. 18
Annex A (informative) Recommendations . 19
Bibliography . 22

© ISO 2005 – All rights reserved iii

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(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 11199-2 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability.
This second edition cancels and replaces the first edition (ISO 11199-2:1999), which has been technically
revised.
ISO 11199 consists of the following parts, under the general title Walking aids manipulated by both arms —
Requirements and test methods:
 Part 1: Walking frames
 Part 2: Rollators
 Part 3: Walking tables
iv © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
INTERNATIONAL STANDARD ISO 11199-2:2005(E)

Walking aids manipulated by both arms — Requirements
and test methods —
Part 2:
Rollators
1 Scope
This part of ISO 11199 specifies requirements and methods of testing the static stability braking capabilities,
static strength and fatigue of rollators being used as walking aids with wheels, manipulated by the hands,
without accessories, unless specified in the particular test procedure. This part of ISO 11199 also gives
requirements relating to safety, ergonomics, performance, and information supplied by the manufacturer
including marking and labelling.
The requirements and tests are based on every-day usage of rollators as walking aids, for a maximum user
mass as specified by the manufacturer. This part of ISO 11199 includes rollators specified for a user mass of
no less than 35 kg.
This part of ISO 11199 is not applicable to rollators with horizontal forearm supports, classified as walking
tables, for which ISO 11199-3 is applicable.
NOTE Recommendations further to the requirements given in this part of ISO 11199 are given in an Annex A.
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 9999:2002, Technical aids for persons with disabilities — Classification and terminology
EN 1041, Information supplied by the manufacturer with medical devices
3 Terms and definitions
For the purpose of this document, the following terms and definitions apply.
3.1
rollator
walking aids with built-in handgrips and three or more legs of which two or more are having wheels, which
provide support whilst walking
See Figure 1.
NOTE Rollators include equipment with a seat for resting, as specified in ISO 9999:2002, Classification No. 12 06 06.
© ISO 2005 – All rights reserved 1

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)

Key
1 rear 6 resting seat
2 brake handle 7 front
3 height adjustment mechanism 8 bracing member
4 folding mechanism 9 wheels
5 handle/handgrip
Figure 1 — Example of components of a rollator
3.2
user mass
body mass of the person using the product as a walking aid
3.3
maximum length
maximum outside dimension of a rollator when the height adjustment is at its maximum, measured parallel to
the direction of straight forward movement when the rollator is in normal use
See Figure 2.
3.4
maximum width
maximum outside dimension of a rollator when all adjustments are at their maximum, measured at right
angles to the direction of straight forward movement when the rollator is in normal use
See Figure 2.
3.5
rollator height
vertical distance from the rear handgrip reference point to the ground
See Figure 2.
2 © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
3.6
turning width
minimum distance between two parallel limiting walls in between which a rollator can be turned 180° around
its own central vertical axis
See Figure 2.
NOTE The adjustments are to be at their maximum

Key
1 turning width 4 maximum length
2 width between handles 5 maximum width
3 tip 6 height
Figure 2 — Nomenclature of maximum dimensions for a rollator
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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
3.7
folded dimensions
height, width and length of the rollator measured with the rollator folded together without the use of tools, all
adjustments at their minimum
3.8
handgrip
that part of the rollator which is intended by the manufacturer to be held by the hand when the rollator is in use
See Figure 3.
3.9
handle
that part of the rollator to which the handgrip is attached
3.10
front handgrip reference point
that point on the upper surface of the handgrip located 30 mm inwards from the front end of the handgrip
length
See Figure 3.
3.11
rear handgrip reference point
that point on the upper surface of the handgrip located 30 mm inwards from the rear end of the handgrip
length
See Figure 3.
3.12
handgrip length
dimension of the handgrip measured longitudinally where the hand rests
See Figure 3.
NOTE Where the front end or the rear end of the handgrip is not clear, the full length of the handgrip that may
comfortably support the mass of the user is defined as the handgrip length.
3.13
handgrip width
outside dimension of the handgrip measured horizontally at the thickest point where the hand rests
See Figure 3.
3.14
brake grip distance
distance measured, with the brake handle in the neutral position, at the midpoint of the handgrip
length and normal to the centreline of the handle tubing, from the upper surface of the handgrip to
the lower surface of the brake handle
See Figure 4.

4 © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
Dimensions in millimetres

Key
1 rear handgrip reference point 4 handgrip width
2 front handgrip reference point 5 front
3 handgrip length
Figure 3 — Detailed drawing of a handgrip

Key
1 brake grip distance 3 front handgrip reference point
2 rear handgrip reference point 4 front
Figure 4 — Brake grip distance
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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
3.15
tips
load-bearing parts without wheels, which are in contact with the ground during use of a rollator
See Figure 2.
NOTE Tips are also used as pressure brakes on some four-wheeled rollators in addition to the wheels.
3.16
forearm support
that horizontal part on which the forearm rests, possibly combined with a handle with handgrip to keep the arm
in position
3.17
parking brake
brake that stays engaged after being activated
3.18
running brake
brake that is operated by the user during walking and where the braking effect depends proportionally on the
activation force applied
3.19
pressure brake
a running brake that engages when a vertical load is applied on the handgrips or on supporting points of the
rollator
3.20
wheel width
maximum dimension of the tyre of the wheel measured within 5 mm up from the walking surface when the
rollator is unloaded
See Figure 5.

Key
1 tyre
2 0 to 5 mm up from the walking surface
3 wheel width
Figure 5 — Wheel width measurement
6 © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)

Key
1 wheel
2 spring
3 frame
4 rubber tip (brake)
5 brake pad
Figure 6 — Two types of pressure brake with technical details
4 Requirements
4.1 Manoeuvrability
The front wheel diameter shall be no less than 75 mm.
The front wheel diameter of rollators manufactured for outdoor use shall be no less than 180 mm.
The wheel width of rollators manufactured for outdoor use shall be no less than 22 mm.
4.2 Stability
When tested according to the forward stability test (see 5.3), the angle of the plane at the point of rollator
tilting shall be no less than 15,0° from the horizontal.
When tested according to the backward stability test (see 5.4), the angle of the plane at the point of rollator
tilting shall be no less than 7,0° from the horizontal.
When tested according to the sideways stability test (see 5.5), the angle of the plane at the point of rollator
tilting shall be no less than 3,5° from the horizontal.
4.3 Brakes
All rollators with more than two wheels shall have running brakes that are easy to operate by the user when
the rollator is in motion.
All rollators with more than two wheels and which have a resting seat, or are designed for outdoor use, shall
have parking brakes, which may be integrated with the running brakes.
Maximum grip distance for operating running brakes shall be no greater than 75 mm as measured in
accordance with 5.7.1.1 (see Figure 4).
When tested according to the running brake test (see 5.7.1), the rollator shall not move more than 10 mm in
1 min.
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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
Maximum force to apply and release parking brakes shall not exceed
a) 60 N pushing force, and
b) 40 N pulling force.
When tested for the parking brake test (see 5.7.2), the rollator shall not move more than 10 mm in 1 min.
If the effectiveness of the brake will be reduced by wear, it shall have means for the compensation of wear.
Brake performance shall not be adversely affected by folding, unfolding or adjusting actions. If re-adjustment
of the brakes is necessary following an adjusting action of the rollator, tools shall not be required (e.g. height
adjustment).
4.4 Handgrip
The handgrip width shall be no less than 20 mm and not more than 50 mm.
This requirement is not applicable to anatomic handgrips.
The handgrip shall be securely fixed to the handle of the rollator as judged by the inspector.
The handgrip shall be replaceable or easy to clean.
4.5 Leg section and tip
Where there is no wheel, the leg section shall end in a tip designed to prevent the leg section from piercing
through it, when the rollator is used as intended by the manufacturer (see 4.7).
Where there is no wheel, the tip shall be replaceable.
Where there is no wheel, the tip shall not cause discolouring of the walking surface, as verified by visual
inspection.
That part of the tip that contacts the walking surface shall have a minimum diameter of 35 mm. Compliance
shall be verified by measurement.
When inspected in accordance with 5.9, the rubber tip shall be securely fixed to the leg of the rollator as
judged by the inspector.
4.6 Resting seat
When tested in accordance with 5.10, no part of the rollator shall crack or break.
4.7 Mechanical durability
When tested in accordance with the static loading test (see 5.11), no part of the rollator shall crack or break
and the permanent set of the rollator height shall not exceed 1 %.
When tested in accordance with the fatigue test (see 5.12), no part of the rollator shall crack or break.
4.8 Adjusting devices
Each of the height adjustment devices shall be clearly marked with its maximum allowable elongation.
When the walking aid is inspected in accordance with 5.13, the adjustment mechanisms shall operate as
intended by the manufacturer.
8 © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
4.9 Folding mechanism
When the walking aid is in the working position and inspected in accordance with 5.13, the folding mechanism
shall stay securely locked, as judged by the inspector.
4.10 Adjustment of handles
The handles may be adjustable but shall be securely fixed when in use and verified by inspection.
On rollators having handles that may be angled or positioned so that they come outside the rollator and
jeopardizes the stability of the rollator, either a physical stop shall prevent the unsafe position or a warning
showing the safe limits of adjustment shall be fixed on the rollator. The instructions for use shall explain the
consequences such an adjustment may have on the stability.
4.11 Materials and finish
The rollator materials shall not cause discolouring of skin or clothing when the rollator is in normal use.
All parts of the rollator shall be free from burrs, sharp edges or projections that could cause damage to
clothing or discomfort to the user.
5 Test methods
5.1 General
All tests, if not otherwise specified, shall be performed at an ambient temperature of 21 °C ± 5 °C.
If not otherwise specified, all tests shall be performed with the height adjustments at their maximum.
Swivelling wheels shall be positioned as if the rollator is run forward, if not otherwise stated. The handles shall
be positioned at their maximum distance and maximum angles in the horizontal plane relative to the direction
of motion as specified by the manufacturer. When the longitudinal centreline of the handle and the direction of
forward motion are parallel, the angle is 0°. The angle shall always be recorded.
During the stability tests, the rollator shall be prevented from sliding or rolling before tilting occurs. The results
of the tests shall not be influenced by the means used. If the rollator is less stable with the height adjustment
at a lower height, the least stable position shall be tested.
Parking or running brakes shall not be activated unless specified in the test procedure.
If the manufacturer offers alternative handle fittings as accessory equipment, all alternatives shall be supplied
with the rollator when tested so that the rollator may be tested in the least favourable configuration (e.g.
extended handles).
5.2 Sampling and inspection
One rollator shall be tested. The sequence of tests shall be as follows:
 measurements;
 stability;
 brakes;
 handgrips;
 rubber tips;
 static loading of resting seat;
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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
 static loading of handles;
 fatigue.
Immediately before being tested, the rollator shall be inspected to check compliance with this part of
ISO 11199. Any apparent defects shall be noted so that they shall not later be recorded as having been
caused by the tests.
5.3 Forward-direction stability test
5.3.1 Loading geometry
Height adjustment and handles shall be positioned as specified in 5.1. Swivelling wheels shall be in the least
stable position.
The rollator shall be placed with its wheels and/or tips on a plane that can be tilted from the horizontal with the
centreline of the hinges parallel to the line through the axis of the front wheels, and at right angles to the
normal direction of movement when the rollator is in use (see Figure 7). The loading force shall be applied
vertically to the rollator. The loading line shall remain vertical and pass through the midpoint of the line joining
the front handgrip reference points on the two handgrips.
5.3.2 Procedure
A static force of 250 N ± 2 % shall be applied. The plane shall be tilted and the maximum angle of the plane at
the point of rollator tilting recorded. Accuracy of measurement shall be less than or equal to ± 0,5°.

Key
1 load
2 front handgrip reference point
3 tilt angle
Figure 7 — Loading geometry for forward-direction stability test
10 © ISO 2005 – All rights reserved

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SIST EN ISO 11199-2:2005
ISO 11199-2:2005(E)
5.4 Backward-direction stability test
5.4.1 Loading geometry
Height adjustment and handles of the rollator shall be positioned as specified in 5.1. Swivelling wheels shall
be in the least stable position.
The rollator shall be placed with its wheels and/or tips on a plane which can be tilted from the horizontal with
the centreline of the hinges parallel to the line through the axis of the rear wheels or tips of the rear legs, and
at right angles to the normal direction of movement when the rollator is in use (see Figure 8). The loading
force shall be applied vertically to the rollator. The loading line shall always be vertical and pass through the
midpoint of the line through the rear handgrip reference points on the two handgrips.
5.4.2 Procedure
A static force of 250 N ± 2 % shall be applied. The plane shall be tilted and the maximum angle of the plane at
the point of rollator tilting recorded. Accuracy of measurement shall be less than or equal to ± 0,5°.

Key
1 load
2 rear handgrip reference point
3 tilt angle
Figure 8
...