Tunisian CRMs for a Circular and Resilient National Economy

The Tunisian Metrological System is supported by two Designated institutes the DEFNAT for Electricity Magnetism and Time Frequency and the LNMc-INRAP for Metrology in chemistry (Mic).
As a DI in Mic, the LNMc has the prime responsibility of being the source of traceability of the highest metrological level to the SI. This comprises the development, maintenance and dissemination of national measurement standards traceable to the SI by the provision of adequate metrological services to Tunisian laboratories. Thus, the LNMc CRMs production activity is considered as a typical activity delivered to realise metrological traceability in the framework of CIPM-MRA.
The adoption of Sustainable Development Goal 9, in the 2030 Agenda for Sustainable Development, incorporates inclusive and sustainable industrial development together with resilient infrastructure and innovation.
We should underpin the fact that in order to achieve this goal, Tunisian Laboratories should access to accurate and compatible measurements tools, and there is no better tool than LNMc CRMs that will be used to perform instruments calibration, to verify the accuracy of specific measurements and to support the development of new measurement methods that contribute directly to build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation.
The LNMc is currently finalizing the publication of a national strategy in metrology in chemistry with detailed strategic plans of CRMs production that respond directly to the national industrial needs and support the Tunisian products competitiveness not only in international trade but also in local market by increasing its efficacy and durability.
Here, we longitudinally analyze the phases of the realization of the Tunisian National Strategy of chemistry and how the LNMc launched the first Gravimetric Unit of CRMs production to fulfill the national needs in these Metrological services. Furthermore, as an MMCBKT participant the LNMc has already participated in the CCQM-K154 comparison series and produced successfully two organics calibration solutions. In addition, the LNMc carried a self-production for an inorganic calibration solution and it will be characterized through a bilateral comparison with PTB.
These results and the demonstrated competence through the MMCBKT participation and especially after the participation in CBKT secondment program, allowed LNMc to submit 2 CMCs in the 2025 cycle. This will play a major role to be one of the essential pieces of information to be used by potential customers to judge the suitability of our CRMs and also will encompasses the robustness of a Tunisian circular economy that will be enhanced by the confidence that metrology in chemistry provide on certain elements like safety, efficiency, repairability, durability, upgradability, and reusability.