Testing of weights

(1) A weight shall be tested by comparison with the equivalent working standard weight or group of working 16 National Metrology standard weights having errors less than one third of the limit of error specified in Table 6 or Table 7 of the Third Schedule as applicable, by direct comparison on a class II or higher class balance. Third Schedule. (2) If a weight does not conform to this regulation, it shall not be passed as correct at verification. Fourth Schedule (3) Where a weight for trade in liquefied petroleum gas has been passed as correct at verification, the Weights and Measures Inspector shall stamp with the prescribed verification o mark as set out in the Fourth Schedule the weighing instrument (a) if the weight has an adjusting hole, on the lead or similar material in that hole; or (b) in any other case, on the base surface of the