• Specific Year
    Any

NATIONAL MEASUREMENT REGULATIONS 1999 - SCHEDULE 4 Maximum permissible uncertainty--length (State primary and secondary standards)

NATIONAL MEASUREMENT REGULATIONS 1999 - 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

ï‚£ 10 m

0.08 mm

0.15 mm

> 10 m

0.001%

0.002%

Part   2   Rigid standards

ï‚£   1   m

0.008 mm

0.015 mm