Skip Ribbon Commands
Australian Government: National Measurement InstituteAustralian Government: National Measurement Institute
National Measurement Institute
      

OIML: International Organisation of Legal Metrology

The International Organisation of Legal Metrology (OIML) is an intergovernmental treaty organisation established in 1955 and based in Paris, France.  OIML’s role is to promote the global harmonisation of legal metrology infrastructures that underpin and facilitate international trade and the level of consumer protection worldwide. This is largely accomplished through the development of specific documents and standards (also known as Recommendations) that are expected to be adopted by the member countries.

Australia became a member of OIML in 1960. The National Measurement Institute (NMI) is Australia's OIML representative.  NMI, through its consultation processes enables Australian stakeholders to have a voice in the development and revision of international standards and associated documents for measuring instruments.

To support Australia’s involvement in the development of legal metrological frameworks, NMI is a member of the International Committee of Legal Metrology (CIML).  CIML is the functional decision-making and governance body of OIML. 

NMI holds the secretariat for three OIML technical committees (TC) and sub-committees (SC) which have responsibility for the following aspect of legal metrology:

NMI is also an active participating member (P-member) with the right to vote on 39 OIML technical committees (TC) and 23 sub-committees (SC) and an observing member (O-member) on 7 technical committees (TC) and 11 sub-committees (SC). For the function of each of these commitees, refer to the table below.

TC/SC Membership

List of technical committees (TC) and sub-committees (SC) and Australia's membership status.

TC/SC

Australia’s Status

TC 1 Terminology

P-Member

TC 2 Units of measurement

P-Member

TC 3 Metrological control

P-Member

SC 1 Pattern approval and verification

P-Member

SC 2 Metrological supervision

P-Member

SC 3 Reference materials

P-Member

SC 4 Application of statistical methods

P-Member

SC 5 Conformity assessment

P-Member

SC 6 Conformity to type

P-Member

TC 4 Measurement standards and calibration and verification devices

P-Member

TC 5 General requirements for measuring instruments  

P-Member

SC 1 Environmental conditions

P-Member

SC 2 Software

P-Member

TC 6 Pre-packaged products

P-Member

TC 7 Measuring instruments for length and associated quantities

P-Member

SC 1 Measuring instruments for length

O-Member

SC 3 Measurement of areas

O-Member

SC 4 Measuring instruments for road traffic 

P-Member

SC 5 Dimensional measuring instruments

Secretariat

TC 8 Measurement of quantities of fluids

P-Member

SC 1 Static volume and mass measurement

P-Member

SC 3 Dynamic volume and mass measurement (liquids other than water)

P-Member

SC 5 Water meters

P-Member

SC 6 Measurement of cryogenic liquids

P-Member

SC 7 Gas metering

P-Member

TC 9 Instruments for measuring mass and density

P-Member

SC 1 Non-automatic weighing instruments

P-Member

SC 2 Automatic weighing instruments

P-Member

SC 3 Weights 

P-Member

SC 4 Densities 

P-Member

TC 10 Instruments for measuring pressure, force and associated quantities

No participation

SC 1 Pressure balances

No participation

SC 2 Pressure gauges with elastic sensing elements

No participation

SC 3 Barometers

No participation

SC 4 Material testing machines

No participation

TC 11 Instruments for measuring temperature and associated quantities

O-Member

SC 1 Resistance thermometers

No participation

SC 2 Contact thermometers

No participation

SC 3 Radiation thermometers

No participation

TC 12 Instruments for measuring electrical quantities

Secretariat

TC 13 Measuring instruments for acoustics and vibration

O-Member

TC 14 Measuring instruments used for optics

No participation

TC 15 Measuring instruments for ionizing radiations

No participation

SC 1 Measuring instruments for ionizing radiations used in medical applications

No participation

SC 2 Measuring instruments for ionizing radiations used in industrial processes

No participation

TC 16 Instruments for measuring pollutants

O-Member

SC 1 Air pollution

O-Member

SC 2 Water pollution

O-Member

SC 3 Pesticides and other pollutant toxic substances

O-Member

SC 4 Field measurements of hazardous (toxic) pollutants

O-Member

TC 17 Instruments for physico-chemical measurements

P-Member

SC 1 Humidity

P-Member

SC 2 Saccharimetry

O-Member

SC 3 pH-metry

O-Member

SC 4 Conductometry

No participation

SC 5 Viscosimetry

No participation

SC 6 Gas analysis

P-Member

SC 7 Breath testers

P-Member

SC 8 Instruments for quality analysis of agricultural products

Secretariat

TC 18 Medical measuring instruments

P-Member

SC 1 Blood pressure instruments

P-Member

SC 2 Medical thermometers

O-Member

SC 4 Bio-electrical instruments

O-Member

SC 5 Measuring instruments for medical laboratories

O-Member

OIML publish a range of different document types all related to legal metrology, these include:

  • International Recommendations (R) which are intended as model regulations for a number of categories of measuring instruments, and which OIML Member States are morally obliged to implement as far as possible.
  • International Documents (D) which are informative and are intended for guidance purposes.
  • Vocabularies (V) which are reference documents containing the definition of terms commonly used in legal metrology.
  • Basic Publications (B) which are overarching documents concerning the functions of OIML and the various aspects of legal metrology.
  • Guides (G), Seminar Reports (S) and Expert Reports (E).

The process of developing OIML documents includes extensive participation by industry, community and government. NMI is responsible for collecting and representing Australian input into the design and development of these documents.

If you would like to know how you can participate in the development of international standards or more information regarding Australia’s involvement in the development of legal metrological frameworks please contact legalmetrology@measurement.gov.au.