In this Act, unless the context otherwise requires,—
Minister means, subject to any enactment, the Minister of the Crown who, under the authority of any warrant or with the authority of the Prime Minister, is for the time being responsible for the administration of this Act
New Zealand standard of measurement, in relation to any physical quantity, means such standard of measurement of that quantity as may for the time being be prescribed by any Act, Proclamation, or regulations as the standard of measurement of that quantity for New Zealand
physical quantity means any physical quantity whatsoever, and includes units of length, volume, mass, time, heat, light, and electricity
principal standard measure, in relation to any New Zealand standard of measurement, means the principal standard measure in New Zealand for that standard of measurement
standard measure, in relation to any standard of measurement, means a physical representation or means of representation of that standard of measurement
verifying authority, in relation to the verification or reverification of any standard of measurement, means a person who is a verifying authority in respect of that standard of measurement by virtue of an appointment made by, or by authority of, the Minister.