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Australian Government: National Measurement InstituteAustralian Government: National Measurement Institute
National Measurement Institute

Determinations of Recognised-value Standards of Measurement

Under the National Measurement Act, NMI is able to determine recognised-value standards of measurement. We have made the following determinations:

  • accuracy of a reference standard of measurement
  • acceleration due to gravity in a vacuum
  • acceleration due to gravity (National Measurement Laboratory, now NMI)
  • density of mercury
  • density of water
  • density of standard mean ocean water
  • dynamic viscosity of water at a temperature of 20°C
  • dynamic viscosity of water at a temperature in the range 19.98°C to 20.02°C
  • velocity of electromagnetic waves in a vacuum
  • positions of the Australian fiducial network locations

The above determinations are available from The Federal Register of Legislation at

A summary of the determinations is currently being revised and will be uploaded soon.