# The Weighing Equipment (Automatic Gravimetric Filling Instruments) Regulations 2000, Schedule 5: (Prescribed limits of error)

Extent: E+W+S

The instrument shall have a specified accuracy class X(x) for which the maximum permissible deviation of each fill from the average shall be equal to the limits specified in Table 1, multiplied by the class designation factor (x).
(x) shall be 1 x 10k, 2 x 10k, 5 x 10k, k being a positive or negative whole number or zero.
Table 1
Value of the mass of the fills M(g)
Maximum permissible deviation of each fill from the average for class X(1)
Initial verification
In-service
For in-service testing, when the reference particle mass exceeds 0.1 of the maximum permissible in-service deviation, the values derived from Table 1 shall be increased by 1.5 times the value of the reference particle mass. However, the maximum value of the maximum permissible deviation shall not exceed (x) x 9%.
Note:
Particle mass correction is not applicable to limits which are derived from Table 1, e.g. influence quantity tests, zero setting etc.
Note:
Table 1 is illustrative of the maximum permissible deviation where the class designation factor is 1.
M ≤ 50
6.3%
9%
50 < M ≤ 100
3.15g
4.5g
100 < M ≤ 200
3.15%
4.5%
200 < M ≤ 300
6.3g
9g
300 < M ≤ 500
2.1%
3%
500 < M ≤ 1000
10.5g
15g
1000 < M ≤ 10000
1.05%
1.5%
10000 < M ≤ 15000
105g
150g
15000 < M
0.7%
1%

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Source: https://www.legislation.gov.uk/uksi/2000/388/schedule/5 (the official version)
Page: https://openlegislation.uk/weighing-equipment-automatic-gravimetric-filling-instruments-regulations-2000/schedule-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.