An employer contemplated in subregulation (1) shall -
(a) provide tables and chairs in every dining room for the maximum number of employees who will be using the dining room at any one time;
(b) ensure that a dining-room or eating place is not connected directly by means of a door or any other opening with any room in which there is exposure to a hazardous chemical substance or hazardous biological agent; or in which untanned hides or skins or unwashed wool or mohair are treated, processed or stored;
(c) not store any material, tools or other goods not related to use of a dining-room in such dining room or allow such items to be stored therein; and
(d) ensure that every dining room is naturally or artificially ventilated in accordance with Part O of the National Building Regulations.