Regulation 8
No person shall take below ground materials for filling or priming shells unless he is a person authorised so to do by the manager of the mine.
No person shall take or convey below ground materials for filling or priming shells, other than carbon dioxide in a cylinder, except in a stoutly constructed box which is—
water-proof;
so constructed and maintained that when closed no electric charge applied to any part of the outside thereof could be conducted to the contents;
distinctively marked to indicate its contents; and
closed and locked:
Provided that a box need not comply with sub-paragraphs (a) and (b) if the materials therein are placed in a bag of such construction that the purposes thereof are achieved.
Every person in charge of such a box shall ensure that it is not deposited at any time elsewhere than in a place of safety.
Every person in charge of such a box shall, if at the end of his shift it contains any materials for filling or priming shells, return it to a place appointed by the manager of the mine for the purpose.
No person below ground shall unlock or open any such box or take any material out of it unless a person appointed by the manager to fire shells requires to check the quantity of the contents or the material is required immediately for filling or priming a shell or the act in question has been authorised by a deputy or other official of the mine.