http://www.legislation.gov.uk/id/uksi/2000/932/schedule/1

SCHEDULE 1ACCURACY CLASSIFICATION OF NON-AUTOMATIC WEIGHING MACHINES

PART IVMACHINES DESIGNATED CLASS III

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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”
Non-graduated machines
20 g ≤ Max < 100 g	20 e			0.1 g
100 g ≤ Max < 1 kg	20 e			$\frac{Max}{1000}$
1 kg ≤ Max < 2 kg	20 e			1 g
2 kg ≤ Max	20 e			$\frac{Max}{2000}$
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	$\frac{Max}{1000}$
100 g ≤ Max ≤ 10 kg	20 d	0.1 g ≤ d ≤ 1 g	1 000 ≤ n ≤ 10 000	d
400 g ≤ Max < 5 kg	20 d	2 g ≤ d ≤ 5 g	200 ≤ n < 1 000	$\frac{Max}{1000}$
2 kg ≤ Max ≤ 50 kg	20 d	2 g ≤ d ≤ 5 g	1 000 ≤ n ≤ 10 000	d
5 kg ≤ Max < 10 t	20 d	10 g ≤ d ≤ 10 kg	500 ≤ n < 1 000	$\frac{Max}{1000}$
10 kg ≤ Max ≤ 100 t	20 d	10 g ≤ d ≤ 10 kg	1 000 ≤ n ≤ 10 000	d
15 t ≤ Max < 100 t	20 d	20 kg ≤ d ≤ 50 kg	750 ≤ n < 1 000	$\frac{Max}{1000}$
15 t ≤ Max < 100 t	10 d	100 kg	750 ≤ n < 1 000	$\frac{Max}{1000}$
20 t ≤ Max ≤ 1 000 t	20 d	20 kg ≤ d ≤ 50 kg	1 000 ≤ n ≤ 10 000	d
20 t ≤ Max ≤ 1 000 t	10 d	100 kg	1 000 ≤ n ≤ 10 000	d
150 t ≤ Max	10 d	200 kg ≤ d	750 ≤ n < 1 000	$\frac{Max}{1000}$
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	20 d	50 g ≤ d ≤ 10 kg	500 ≤ n ≤ 10 000	d
15 t ≤ Max ≤ 1 000 t	20 d	20 kg ≤ d ≤ 50 kg	750 ≤ n ≤ 10 000	d
15 t ≤ Max ≤ 1 000 t	10 d	100 kg	750 ≤ n ≤ 10 000	d
150 t < Max	10 d	200 kg ≤ d	750 ≤ n ≤ 10 000	d