# The Measuring Instruments Regulations 2016, Paragraph 2.1


MPE Category Y instruments
Table 1
Net Load (m) in verification scale intervals (e)
Maximum permissible mean error
Maximum permissible error
Y(I)
Y(II)
Y(a)
Y(b)
Static
Automatic
0 < m ≤ 50,000
0 < m ≤ 5,000
0 < m ≤ 500
0 < m ≤ 50
± 0.5 e
± 1 e
50,000 < m ≤ 200,000
5,000 < m ≤ 20,000
500 < m ≤ 2,000
50 < m ≤ 200
± 1.0 e
± 1.5 e
200,000 < m
20,000 < m ≤ 100,000
2,000 < m ≤ 10,000
200 < m ≤ 1,000
± 1.5
± 2 e

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Source: https://www.legislation.gov.uk/uksi/2016/1153/schedule/1G/chapter/II/paragraph/2.1 (the official version)
Page: https://openlegislation.uk/measuring-instruments-regulations-2016/schedule-1G/chapter-II/paragraph-2.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.