DIN CEN/TS 15901-15

Road and airfield surface characteristics – Part 15: Procedure for determining the skid resistance of a pavement surface using a device with longitudinal controlled slip (LFCI): The IMAG; German version CEN/TS 15901-15:2014
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 12/01/2014