In our manual the suggested rate we can reasonably expect is about 1 knot per second, with a suggestion that this might not be achieved if the aircraft is descending/clean.
Once dirty the expected rate is a bit higher.
There is no mention of a required deceleration rate.
Our MATS was originally based on the English one, and this hasn't changed in the time I've been a controller, so I doubt it's different in Europe.