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Metrology Services

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Mauritania's National Office for Standardization and Metrology offers a wide range of industrial-metrology services tailored to the needs of businesses and institutions. Our expertise covers four main families of quantities, essential to ensuring measurement accuracy and reliability across different sectors of activity.

  1. Mass and Weighing: We provide calibration and verification services for non-automatic weighing instruments (IPFNA) with a maximum capacity of 1 tonne, ensuring accurate measurements that comply with applicable standards. Our weights, ranging from 1 mg to 20 kg, are available in classes F1, F2, M1, M2 and M3, ensuring traceability and linkage to the International System of measurement (SI).
  2. Volume: For capacity measurement, we carry out gauging and volume measurement operations ranging from 1 ml to 20 L. These services ensure that your measuring equipment meets the metrological requirements essential for product quality control.
  3. Temperature: We also provide calibration services for thermometers, probes and measurement chains over a temperature range of -40 to 80 degrees Celsius. This range ensures accurate temperature measurements, which are crucial in many industrial processes.

In addition to these services, our team of experts is available to provide support and advice in metrology and in preparing technical specifications. We also offer training tailored to your employees’ needs and management services for Inspection, Measurement and Test Equipment (ECME).

Finally, we can assist you in calculating uncertainties, an essential element in assessing the accuracy and reliability of the measurements performed.

We are committed to providing high-quality services that meet our partners’ expectations and contribute to the continuous improvement of their industrial processes. For further information or to request a service, please do not hesitate to contact us.

Technical service catalogues
General conditions for the provision of services
Calibration and/or characterization request form
Customer request letter

Our News

Signing of the MoU with ASTM International (left) and the framework agreement with Benin’s ANM (right), on the sidelines of the ISO Annual Meeting in Paris

ONANOR signs two partnership agreements with ASTM International and Benin’s ANM

04/10/2026
Notice — ONANOR

Public consultation notice on draft Mauritanian standards

12/08/2026
Notice — ONANOR

List of draft standards submitted to public consultation No. 02

12/08/2026

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