oSIST prEN 14903:2006

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2004
ICS
English version
Surfaces for indoor sports areas - Determination of rotational
friction
Sols sportifs intérieurs - Détermination de la glissance en
rotation
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 217.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 Management Centre 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.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14903:2004: E
worldwide for CEN national Members.

Contents Page
Foreword. 3
1 Scope . 3
2 Normative references . 3
3 Terms and definitions. 3
4 Principle. 3
5 Sampling. 3
5.1 Laboratory testing . 3
5.2 Field testing. 4
6 Apparatus . 4
6.1 Test unit . 4
6.2 Measuring and recording instruments . 4
7 Preparation of test pieces. 4
7.1 Laboratory testing . 4
7.2 Field testing. 4
8 Procedure . 4
9 Expression of results . 5
10 Uncertainty . 5
11 Test report . 5
Foreword
This document (prEN 14903:2004) has been prepared by Technical Committee CEN/TC 217 "Surfaces for
sports areas", the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
1 Scope
This European Standard specifies a method for the determination of the friction between any type of indoor
sports surface and a rotating foot with a vertical load.
NOTE This method simulates the load exerted by an athlete in a rotating movement on the floor.
2 Normative references
Not applicable.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
friction coefficient
horizontal force between the test foot and the floor (derived from the measured torque) divided by the vertical
load on the foot when the foot rotates (see clause 9)
3.2
vertical load
constant, vertical force exerted on the floor by the test foot
3.3
torque
force transferred to the test foot from the floor when the test foot under vertical load rotates on the floor
4 Principle
Friction is measured by allowing a circular test foot u
...