For the Main Vessel of Reactor a segment was planned for manufacturing during this technology development phase. It is recognised that such an activity ahead of project will also help in achieving control on project schedule when project commences.

The efficient and proper implementation of quality assurance in the technology development works of PFBR main vessel was undertaken to achieve the desired quality and dimensional accuracy on the 14 metre diameter and height of 12.7 metre vessel with torispherical dished end at bottom. It has been a challenging task to meet the stringent specification/drawing requirements of PFBR with respect to close tolerances and acceptance criteria specified for NDT.

In this paper an attempt has been made to bring out the methods and procedures adopted to implement the quality assurance programme on important activities including approval of documents, material, general requirements for manufacture of SS components, inspection procedures, forming and welding of petals, nondestructive testing etc.