Commission Regulation (EC) No 1278/97 of 2 July 1997 amending Regulation (EC) No 577/97 laying down certain detailed rules for the application of Council Regulation (EC) No 2991/94 laying down standards for spreadable fats and of Council Regulation (EEC) No 1898/87 on the protection of designations used in the marketing of milk and milk products (Text with EEA relevance)