Commonwealth Consolidated Regulations

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NATIONAL MEASUREMENT REGULATIONS 1999 - SCHEDULE 7

Maximum permissible uncertainty and maximum permissible variation--length (Inspectors' Class 1 and Class 2 standards)

(paragraphs 27(a), 28(a), 32(a) and 33(a))

 

 

Column 1

Denomination

Column 2

Maximum permissible uncertainty (at 95% level of confidence): Inspectors' Class 1 standard

Column 3

Maximum permissible variation: Inspectors' Class 1 standard

Column 4

Maximum permissible uncertainty (at 95% level of confidence): Inspectors' Class 2 standard

Column 5

Maximum permissible variation: Inspectors' Class 2 standard

Part   1   Flexible standards

ï‚£ 10 m

0.4 mm

1.5 mm

1.1 mm

5.0 mm

> 10   m

0.004%

0.015%

0.011%

0.05%

Part   2   Rigid standards

ï‚£ 500 mm

0.04 mm

0.15 mm

 

 

> 500 mm but ï‚£ 1 m

0.04 mm

0.20 mm

 

 

> 1   m but ï‚£   2   m

0.05 mm

0.20 mm

 

 


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