LONDON -- Standard&Poor's CreditWire 11/13/96 -- Standard&Poor's today has revised its long-term rating outlook for Skandinaviska Enskilda Banken (SEB) to positive from stable. At the same time, Standard&Poor's affirms SEB and its related entities', single-`A'-minus long-term and `A- 2' short-term ratings. The revision of SEB's outlook reflects the improvements made in the bank's risk management systems and its financial profile. Over the past year, SEB has made good progress in improving its risk management procedures, especially in its lending functions, where controls and underwriting procedures have been extensively tightened. The progress made by the bank in bringing credit losses and problem assets down to manageable levels has been notable. Improved asset quality, aided by