DIN SPEC 1144

Road and airfield surface characteristics – Part 4: Procedure for determining the skid resistance of pavements using a device with longitudinal controlled slip (LFCT): Tatra Runway Tester (TRT); German version CEN/TS 15901-4:2009
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2010