# The Non-automatic Weighing Instruments Regulations 2016, Paragraph 3.3.3


The partial weighing ranges are classified according to Table 2. All partial weighing ranges shall fall into the same accuracy class, that class being the instrument's accuracy class.
Table 2
Multi-level instruments
i = 1, 2, …r,
i = partial weighing range number,
r = the total number of partial weighing ranges
Class
Verification scale interval (e)
Minimum capacity (Min)
Number of verification scale intervals
Minimum value
Minimum value
n = ((Maxi) / (e(i+1)))
Maximum value
n = ((Maxi) / (ei))
I
0,001 g ≤ ei
100 e1
50 000
II
0,001 g ≤ ei ≤ 0,05 g
20 e1
5 000
100 000
0,1 g ≤ ei
50 e1
5 000
100 000
III
0,1 g ≤ ei
20 e1
500
10 000
IIII
5g ≤ ei
10 e1
50
1 000

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Source: https://www.legislation.gov.uk/uksi/2016/1152/schedule/6/paragraph/3.3.3 (the official version)
Page: https://openlegislation.uk/non-automatic-weighing-instruments-regulations-2016/schedule-6/paragraph-3.3.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.