WORK on the revision of the Standards of Training, Certification and Watchkeeping for Seafarers (STCW), gained momentum at the meeting of the recent IMO sub-committee on training and watchkeeping. The meeting was attended by Duncan Drummond, principal nautical surveyor at the Marine Department, who said the revision was discussed, including methods of assessing competency, compliance and verification measures, and the use of simulators and computers in maritime training. A new approach to certification of seafarers also was considered. ''This is seen by some as more appropriate for modern ships and technology and providing higher standards of competency,'' he said. It will require standards of competency to be set for each shipboard function and will be a significant departure from traditional certification of seafarers if accepted, Mr Drummond said. The review is being accorded a high priority at IMO, and it is planned to have the new convention ready for adoption in early 1995. In view of the speed at which the work is to be accomplished, representatives of all sides of the shipping industry in Hong Kong were invited to a Marine Department briefing last week on the progress made and issues to be considered at the next IMO meeting. The briefing, given by Mr Drummond, was attended by representatives of the Hong Kong Shipowners Association, Merchant Navy Officers Guild, Hong Kong Seamen's Union, Hong Kong Polytechnic, the Vocational Training Council and the Institute of Sea Transport.