This European Standard specifies the method for compaction of cylindrical specimens of bituminous mixtures using a gyratory compactor. Such compaction is achieved by combining a rotary shearing action and a vertical resultant force applied by a mechanical head.The method is used for:a) determination of the air voids content of a mixture for a given number of gyrations or derivation of a curve density (or void content) versus number of gyrations;b) preparation of specimens of given height and/or at a predetermined density, for subsequent testing of their mechanical properties.The equipment used for the method needs to comply with Annex A, Annex B or Annex C.