We are doing a refurbishment project which designed as per PD-5500 1982 version in the past. As per PD-5500(2009) clause 3.5.4.2 d(2) The nozzle shall be of circular cross-section conforming to d)1)i) and the angle between the axis of the nozzle and a line normal to the shell surface shall not exceed 50°. which is not satisfied by the vessel. So is this clause was there in the older version of PD-5500(1982).