(b) the purpose for which any particular types or
classes of weighing or measuring equipment may be
used for trade;
(c) the amount of error which may be tolerated in
weighing or measuring equipment;
(d)
the manner of siting, erecting or using weighing
or measuring equipment used for trade;
(e) the exemption of any class or classes of weighing
or measuring equipment from this Ordinance or any
such regulations;
(E)
the exemption of any goods or class of goods from
this Ordinance or any such regulations;
(g)
the supply for trade of certain prescribed goods
otherwise than by net weight or measure or by
capacity;
(h)
the marking on containers, with effect from a
prescribed date, in metric units of measurement
(in addition to other authorized units) of the
quantity of prescribed goods supplied in
containers;