3.—(1) Subject to regulation 4 (revocations and transitional and consequential provisions), these Regulations apply to non-automatic weighing instruments.
(2) These Regulations, except Part 4, apply to an instrument (referred to in these Regulations as a “regulated non-automatic weighing instrument”) for use for any of the following purposes—
(a)the determination of mass for commercial transactions;
(b)the determination of mass for the calculation of a toll, tariff, tax, bonus, penalty, remuneration, indemnity or similar type of payment;
(c)the determination of mass for the application of laws or regulations or for an expert opinion given in court proceedings;
(d)the determination of mass in the practice of medicine for weighing patients for the purposes of monitoring, diagnosis and medical treatment;
(e)the determination of mass for making up medicines on prescription in a pharmacy and determination of mass in analyses carried out in medical and pharmaceutical laboratories; and
(f)the determination of price on the basis of mass for the purposes of direct sales to the public and the making up of prepackages.
(3) Part 4 applies to a non-automatic weighing instrument that is not a regulated instrument.