6.—(1) No material shall contain any added trace element identified in column 2 of Part V, and coming from a source specified in relation to it in columns 3 and 4 of Part V, in proportions which, taking account of any such trace element which is naturally present, exceed the maximum content specified in relation thereto in column 6 of that Part.
(2) No material shall contain any added trace element so identified, from a source so specified, unless the material is for a species or category of animal listed opposite the source in question in column 5 of that Part.
(3) No material shall contain any added trace element so identified, and from a source so specified, which does not comply with the conditions (if any) specified in respect of that source in column 7 of that Part.