19.—(1) Every automatic catchweigher shall be so positioned as to facilitate cleaning and testing.
(2) The installation of an automatic catchweigher shall be so designed that an automatic weighing operation will be the same for testing as for use for a transaction.
(3) If any special equipment for an automatic catchweigher, as referred to in paragraph 9(5) of Schedule 1, is not a permanent fixture of the instrument it shall be kept in the vicinity of the instrument.