Document ID: chunk:federal_register_of_legislation:F2024C01009:schedule:4
Version: federal_register_of_legislation:F2024C01009
Segment Type: schedule
Provision Reference: sch 4
Character Range: 120558–121420

Schedule 4—Maximum permissible uncertainty—length (State primary and secondary standards)
(paragraphs 18(5)(a) and 25(a))

Column 1                   Column 2                                                                              Column 3
Denomination               Maximum permissible uncertainty (at 95% level of confidence): State primary standard  Maximum permissible uncertainty (at 95% level of confidence): State secondary standard
Part 1 Flexible standards
 10 m                     0.08 mm                                                                               0.15 mm
> 10 m                     0.001%                                                                                0.002%
Part 2 Rigid standards
 1 m                      0.008 mm                                                                              0.015 mm