Section 4: Working standards.

(1)
The Minister shall provide for use by inspectors under this Act and cause to be maintained or from time to time replaced such standards (in this Act referred to as "working standards") of such of the measures and weights set out in the Third Schedule to this Act, together with such testing equipment and stamping equipment as he may from time to time approve or require as being proper and sufficient for the efficient discharge by inspectors of their functions under this Act.
[Third Schedule.]
(2) Working standards and testing and stamping equipment provided under this section shall be of such material and form approved by the superintendent and, except so far as may be necessary for the purposes of their use elsewhere, they shall be kept under such control as the superintendent may from time to time direct or approve; and a working standard of a linear or capacity measure shall as the superintendent may from time to time direct-
(a) be provided either as a separate standard or by means of divisions marked on a standard of a larger measure; and
(b) either be marked in whole or in part with sub-divisions representing any smaller unit of measurement or multiples or fractions of such a unit or have no such markings.
(3) The Minister shall by regulations make provision-
(a) for working standards to be from time to time tested by comparison with, and if necessary adjusted to, within such limits of error as may be specified in the regulations by reference to other working standards more recently tested, or as the case may require, Nigerian trade standards;
(b) with respect to the testing, adjustment and limits of error of testing equipment provided under this section,
and no article shall be used by an inspector as a working standard or as testing equipment unless the relevant requirements of those regulations are for the time being satisfied with respect thereto.
(4) Any metric working standard or testing or stamping equipment lawfully in use by inspectors immediately before the commencement of this section, shall be deemed, for the purposes of this Act, to have been provided under this section.