UNI EN 14904 European Standard
European Standard (EN 14904:2006) was developed by the Technical Committee CEN/TC 217 "Surfaces for sports areas", whose secretariat is managed by BSI.
The European standard shall be given the status of National Italian Standard since October 2006, and all other national conflicting standards must have been withdrawn within October 2006.
The European Standard has been processed within a task assigned to CEN by the European Commission and by the European Free Trade Association, and supports the essential requirements set by the European Union Directives.
According to the CEN/CENELEC Internal Regulations, the National Standards Organizations of the following countries are bound to implement the European Standard: Austria, Belgium, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Ireland, Iceland, Italy, Latvia, Lithuania, Luxembourg, Malta, Norway, Netherlands, Poland, Portugal, United Kingdom, Czech Republic, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and Hungary.
Sports surfaces go through a complex reaction when subjected to dynamic loading.
The desired components of the interaction are deformation under load, ability to absorb impact, and energy return of the impact, for instance the amount of energy returned to a sportsman from the surface on which he/she is playing. The power of a surface to absorb an impact is an important safety feature. The specified values are therefore a necessary compromise between these essential features. Sports surfaces react differently under different temperatures and strain rates; they get harder at low temperatures and softer at high temperatures.
An important requirement for safety and sports performance is for there to be enough grip between the athleteís footwear and the sports surface. Inadequate grip can cause the athlete slipping on the surface; too much grip can put unacceptable stress on joints and muscle ligaments.
Here are the key points of this Standard, obviously going back to the former German Standard DIN 18032, which can be appointed as the source of the current EN Standard for indoor surfaces.