11 The 9-car disc braked Electric Multiple Unit train shall meet the specification of maximum level (Lmax) not exceeding 82.5dB(A) at 130kph measured at 25m from the at-grade ballasted tracks.

• 当9卡碟形制动电气化列车在地面上的铺道碴路轨上以时速130公里行驶时，在25米距离，测量所得的噪音量须符合不超逾82.；5分贝(A)的最高声级规格。