Changes made by 93/351/EEC: Commission Decision of 19 May 1993 determining analysis methods, sampling plans and maximum limits for mercury in fishery products
EU Decision 1993/351
No changes made by 93/351/EEC: Commission Decision of 19 May 1993 determining analysis methods, sampling plans and maximum limits for mercury in fishery products are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.