# The Weights and Measures (Local and Working Standard Linear Measures) Regulations 1986, Schedule 1


TABLE 1
LOCAL STANDARD LINEAR MEASURES PRESCRIBED LIMITS OF ERROR
Imperial
Limit of Error
1 inch
0.004 inch
6 inches, 1 foot, 2 feet or 1 yard
0.008 inch
over 1 yard
0.004 inch plus 0.004 inch per yard of length
Metric
1 centimetre
0.05 millimetre
1 decimetre
0.1 millimetre
0.5 metre or 1 metre
0.2 millimetre
over one metre
0.1 millimetre plus 0.1 millimetre per metre of length
TABLE 2
WORKING STANDARD LINEAR MEASURES PRESCRIBED LIMITS OF ERROR
Imperial
Limit of Error
1 yard or less
0.02 inch
over 1 yard
0.012 inch plus 0.008 inch per yard of length
Metric
1 metre or less
0.5 millimetre
over 1 metre
0.3 millimetre plus 0.2 millimetre per metre of length
Note: Where Regulation 3(2) applies the limits of error in this Table are increased in accordance with that Regulation.

---
Source: https://www.legislation.gov.uk/uksi/1986/1684/schedule/1 (the official version)
Page: https://openlegislation.uk/weights-and-measures-local-and-working-standard-linear-measures-regulations-1986/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.