- Publication no: AGPT-T250-08
- Published: 1 June 2008
This method describes the procedure for the determination of the surface texture depth of road surfaces, by the sand patch technique. This method is only applicable to surface texture depths greater than 0.3 mm. This method was developed from BS 598:105:1990 and is the preferred method for determining surface texture allowances in the design of sprayed seals.