A trade measurement inspector must obliterate a verification mark on a measuring instrument if, in the course of exercising powers or performing functions or duties under this Act or the regulations, the inspector becomes aware that:
(a) the measuring instrument no longer complies with the requirements for verification set out in section 18GK when tested in accordance with the national instrument test procedures; or
(b) if the measuring instrument is treated as one of a batch under the national instrument test procedures--the measuring instrument is one of a batch that no longer complies with the requirements for verification set out in section 18GK when tested in accordance with those procedures.
Note: A measuring instrument may comply with the requirements for verification set out in section 18GK if the instrument is taken not to have failed when tested in accordance with the national instrument test procedures (see section 18GR).