The Health Services (Travelling Expenses) (Amendment) Regulations (Northern Ireland) 1962
(d) any food may contain not more than five parts per million of formaldehyde derived solely from any resin used in the manufacture of wet strength papers or of plastic food containers or utensils (paragraph (d) of the proviso to regulation 3(1));

(e) the skin, but not the flesh, of a banana may contain nystatin; and cheese, clotted cream and any canned food may contain nisin (paragraphs (e), (h), and (j) of the proviso to regulation 3(1));

(f) the regulations provide that where certain foo...