The Weighing Equipment (Non-automatic Weighing Machines) Regulations 1988

PART IV MACHINES DESIGNATED CLASS III

14.  A machine which is—

(a) made in accordance with an approved pattern and marked

in accordance with the published particulars of that pattern, or

(b) first stamped before 1st November 1988 and marked “Class C” in accordance with the provisions for beam scales in the Weights and Measures Regulations 1963, or

(c) of a type referred to as “common form” and which was first stamped before 1st November 1988,

is a Class III machine.

15.  The specifications for non-graduated and graduated Class III machines are given in Table 3.

Table 3

Maximum capacity “Max”	Lower limit of the minimum load “Min”	Scale interval “d”	Number of scale intervals “n”	Verification scale interval “e”
Notes 1. In the case of machines where the weight indicating or printing is in units of the imperial system the relevant capacity and verification scale interval shall be the amounts in imperial units which are equivalent to those specified in the Table in terms of g, kg and t. 2. Where the equivalent metric value for an imperial scale interval falls between ranges then the value shall be considered as belonging to the lower range.
Non-graduated machines
20 g ≤ Max < 100 g	50 e			0.1 g
100 g ≤ Max < 1 kg	50 e
1 kg ≤ Max < 2 kg	50 e			1 g
2 kg ≤ Max	50 e
Graduated machines
Non-self indicating machines
20 g ≤ Max < 100 g	10 d	0.1 g ≤ d ≤ 0.2 g	200 ≤ n < 1 000	0.1 g
100 g ≤ Max < 1 kg	20 d	0.2 g ≤ d ≤ 1 g	200 ≤ n < 1 000
100 g ≤ Max ≤ 10 kg	20 d	0.1 g ≤ d ≤ 1 g	1 000 ≤ n ≤ 10 000	d
400 g ≤ Max < 5 kg	50 d	2 g ≤ d ≤ 5 g	200 ≤ n < 1 000
2 kg ≤ Max ≤ 50 kg	50 d	2 g ≤ d ≤ 5 g	1 000 ≤ n ≤ 10 000	d
5 kg ≤ Max < 10 t	50 d	10 g ≤ d ≤ 10 kg	500 ≤ n < 1 000
10 kg ≤ Max ≤ 100 t	50 d	10 g ≤ d ≤ 10 kg	1 000 ≤ n ≤ 10 000	d
15 t ≤ Max < 100 t	1 000 kg	20 kg ≤ d ≤ 100 kg	750 ≤ n < 1 000
20 t ≤ Max ≤ 1 000 t	1 000 kg	20 kg ≤ d ≤ 100 kg	1 000 ≤ n ≤ 10 000	d
150 t ≤ Max	10 d	200 kg ≤ d	750 ≤ n < 1 000
200 t ≤ Max	10 d	200 kg ≤ d	1 000 ≤ n ≤ 10 000	d
Self and semi-self indicating machines
20 g ≤ Max ≤ 10 kg	10 d	0.1 g ≤ d ≤ 1 g	50 ≤ n ≤ 10 000	d
400 g ≤ Max ≤ 50 kg	20 d	2 g ≤ d ≤ 5 g	200 ≤ n ≤ 10 000	d
5 kg ≤ Max ≤ 200 kg	20 d	10 g ≤ d ≤ 20 g	500 ≤ n ≤ 10 000	d
25 kg ≤ Max ≤ 100 t	50 d	50 g ≤ d ≤ 10 kg	500 ≤ n ≤ 10 000	d
15 t ≤ Max ≤ 1 000 t	1 000 kg	20 kg ≤ d ≤ 100 kg	750 ≤ n ≤ 10 000	d
150 t < Max	10 d	200 kg ≤ d	750 ≤ n ≤ 10 000	d