Metrology & Instrumentation

The SON is the custodian of the National Primary Measurement Standards in the country and has been officially designated as the National Metrology Institute (NMI) of Nigeria.

Calibration services are presently offered to industries, government agencies, research institutions, testing laboratories in various fields of metrology namely; mass, length, temperature and pressure.

The National Metrology Institute (NMI) in SON is responsible for Scientific Metrology while the Weights & Measures Department (WMD) of the Federal Ministry of Industry, Trade & Investment (FMITI) oversees the formulation and implementation of policies for Legal Metrology.

The WMD, Metrology Laboratories, industries and all institutions in the country will derive traceability from the NMI.

The WMD, Metrology Laboratories, industries and all institutions in the country will derive traceability from the NMI.

Some of the functions of the NMI include:

  • Custody, development and maintenance of the National Measurement Standards.
  • Declaration of the country’s Calibration and Measurement Capability (CMC) at the BIPM (International Bureau for Weights and Measures)
  • Guarantee of traceability of National Primary Standards to SI units and transferring the traceability from the National Primary Standards to the Calibration and Testing laboratories, as well as industry and other end users.
  • Participation in international inter-comparisons and organizing the national comparisons.
  • Development of metrology in the country by means of training, education and updating of staff of the NMI and other calibration bodies to innovations in Metrology.
  • Awareness creation and sensitization of metrology by means of calibration and education services for customers, mainly for Calibration laboratories.
  • Building-up the metrological hierarchy in the country and creation of metrology work groups.
  • Promotion and representation of the country in international and regional organisations and fora (e.g. Metre Convention, CIPM-MRA, BIPM, AFRIMET, etc.) as well as active participation in international Technical Committees.

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