Dr. Jeerasak Pitakarnnop, Senior Professional Metrologist from NIMT, represented Thailand in participating and delivering a technical presentation at the EURAMET Technical Committee for Mass and Related Quantities (TC-M) Workshop on Dynamic Measurements of Mechanical Quantities, held during 3–4 March 2026 in Sweden. He attended the workshop as an Invited Speaker, reflecting international recognition of his expertise in dynamic pressure metrology.

Dr. Jeerasak was nominated through the Asia Pacific Metrology Programme (APMP) TC-M, following EURAMET’s request for experts in the field of dynamic pressure. His selection highlights both his individual expertise and NIMT’s growing international role in advanced metrology research.

At the workshop, Dr. Jeerasak presented his work titled “Pressure Step and Shock Front Prediction Using CFD Simulations,” contributing to the session on dynamic pressure. His research focuses on the development of primary standards for dynamic pressure based on shock tube techniques, which have previously been presented at international platforms such as IMEKO and published in the journal Measurement. This work has been supported by national research funding and represents a significant advancement in Thailand’s metrology capabilities.

The shock tube-based system developed by NIMT serves not only as a primary standard for dynamic pressure but also has broader applications in emerging fields. These include studies on green, carbon-free fuels such as hydrogen and ammonia, as well as investigations into combustion processes, carbon emissions, and chemical reaction kinetics of hydrocarbon fuels. These applications align with global priorities on carbon reduction and sustainable energy development.

In addition to the workshop sessions, Dr. Jeerasak also participated in technical discussions and a laboratory visit under the RISE–NIMT bilateral collaboration framework, further enhancing cooperation between the two institutes.

Dr. Jeerasak’s role as an invited speaker not only showcases the technical capabilities of NIMT on the global stage but also contributes to strengthening Thailand’s position in advanced metrology. The outcomes of this participation are expected to support national development in key sectors such as energy, next-generation automotive technologies, carbon management policies, and the emerging space economy.

Overall, this engagement represents a significant step forward in advancing Thailand’s metrology infrastructure, fostering international collaboration, and supporting innovation-driven economic growth.

The National Institute of Metrology (Thailand) has reaffirmed its leadership in the international metrology community through its prominent role in the 6th International DCC Conference. Held under the theme “From Good Practice to Standardization: DCC for a Reliable Future,” the conference took place as an online event from February 24–26, 2026.

Dr. Jariya Buajarern, Expert Metrologist at NIMT, was honored to serve as the Chair of the International Programme Committee. She delivered the opening welcome address alongside distinguished global metrology leaders, including Dr. Frank Härtig, Vice President of PTB (Germany), and Dr. Stephan Schlamminger, Physicist from NIST (USA). The conference successfully brought together over 600 registered participants from 82 countries to shape the future of digital quality infrastructure.

Representing NIMT’s technical advancements, a research paper titled “Measurement Capability Modeling and SI-Compliant Unit Representation for Digital Calibration Certificates” was presented by Miss Praiya Thongluang, researcher of the digital transformation center of NIMT. This work details the enhancement of NIMT’s DCC Web Portal, which now supports advanced measurement capability modeling. A significant contribution of this architecture is the development of a CMC Database and a Scope of Accreditation Database. These databases provide a formal, machine-interpretable digital representation of laboratory capabilities, ensuring that generated DCCs are strictly aligned with authorized ranges and institutional trust levels.

Furthermore, NIMT’s framework ensures that unit representation adheres to the SI Digital Framework published by the BIPM. By treating SI prefixes, base units, and exponents as separate semantic components, the system achieves unambiguous and standardized unit encoding. This transition moves metrology from being document-centric to capability-driven, allowing calibration results to be fully machine-readable and interoperable across global data spaces.

The shift from traditional PDF certificates to Digital Calibration Certificates (DCC) is a critical enabler for Industry 4.0. By following FAIR principles (Findable, Accessible, Interoperable, Reusable), DCCs eliminate manual transcription errors, reduce processing times, and facilitate the automated exchange of trustworthy metrological data.

For more information regarding the conference outcomes and NIMT’s digital initiatives, please visit  https://www.youtube.com/watch?v=blWID7KORug&list=PLa_2XwPneZcrldsHrI0OA2onhDM64eY2W

The National Institute of Metrology (Thailand) (NIMT), led by its Director, Pol. Lt. Gen. Pornchai Suteerakune, was honored to welcome Prof. Dr. Cornelia Denz, President of the Physikalisch-Technische Bundesanstalt (PTB), together with Mr. Uwe Miesner, Head of Section Asia, on the occasion of their official visit to Thailand during 19–20 February 2026.

The visit aimed to reinforce bilateral cooperation and engage in high-level strategic discussions on advancing Thailand’s national metrology system, while further strengthening Thailand–Germany collaboration in response to the evolving global landscape.

For more than two decades, cooperation between NIMT and PTB has been close and continuous. PTB has played a pivotal role in laying the foundation of Thailand’s national metrology system, even prior to the official establishment of NIMT. The partnership has encompassed human resource development, knowledge and technology transfer, the development of national measurement standards, and enhancement of laboratory capabilities in accordance with international best practices.

These collaborative efforts have served as a key driving force in strengthening Thailand’s National Quality Infrastructure (NQI), thereby supporting industrial competitiveness, international trade and exports, consumer protection, and public safety.

During the visit, both sides exchanged views on the future direction of metrology development amid global challenges, including emerging technologies, energy transition, the digital economy, and the Sustainable Development Goals (SDGs). These transformations are generating increasingly complex and high-precision measurement requirements across multiple sectors.

Both parties agreed to expand cooperation into strategic priority areas such as clean energy, climate change, advanced technologies, and support for Thailand’s targeted industries. They also reaffirmed their shared commitment to elevating Thailand’s role as a regional hub for metrology cooperation within ASEAN and the Asia–Pacific region.

The National Institute of Metrology (Thailand) (NIMT) further advanced international cooperation in metrology by delivering a comprehensive technical training programme in Time and Frequency Metrology to the Uzbek National Institute of Metrology (UzNIM) from 9–20 February 2026 in Tashkent, Republic of Uzbekistan.

The two-week programme was conducted under the Physikalisch-Technische Bundesanstalt (PTB) project “Support for the Reform of the National Quality Infrastructure and Development of Services for the Uzbek Economy (Phase II)”, which aims to strengthen national measurement capabilities and quality infrastructure in Uzbekistan.

The training was delivered by Dr. Thayathip Thongtan, Senior Metrologist from NIMT, and focused on enhancing UzNIM’s technical knowledge and practical skills in time and frequency measurements, particularly in the calibration of period meters and frequency counters operating in period measurement mode.

The programme combined in-depth lectures and hands-on workshops covering:

– Fundamental principles of time and frequency metrology

– SI traceability to the second and linkage to UTC time scales

– Systems for period meter calibration

– Determination of period measurement errors

– Development of uncertainty budgets

– Drafting of calibration procedures for period measurements

UzNIM maintains the national time scale, UTC(UZ), and contributes to international time scales through participation in the framework of the International Bureau of Weights and Measures (BIPM). The training further strengthened SI traceability to the second and reinforced the linkage between national standards and international timekeeping systems.

During the mission, detailed discussions were held on measurement uncertainty evaluation, traceability statements, laboratory environmental controls, and the future expansion of period measurement services. UzNIM staff demonstrated strong technical commitment and presented a clear roadmap for extending period calibration services to wider ranges, with full traceability to the SI second and Coordinated Universal Time (UTC).

This technical cooperation served as an important platform for experience sharing between time and frequency experts of NIMT and UzNIM. It contributes directly to capacity building, harmonisation of measurement practices, and the sustainable development of national time and frequency calibration services in Uzbekistan.

The successful completion of the Time and Frequency metrology training marks a significant milestone in strengthening UzNIM’s technical capabilities in period measurement and calibration. It also reaffirms the strong collaborative partnership among NIMT, PTB, and UzNIM, laying a solid foundation for continued cooperation and future joint initiatives in the field of time and frequency metrology.

Pol. Lt. Gen. Pornchai Suteerakune, Director of the National Institute of Metrology (Thailand) (NIMT), together with Dr. Monthol Homklintian, Supervisor of the Electrical Metrology Department and Group Leader of Primary Electrical, Time and Frequency Standards, warmly welcomed Mr. Sardor Ikramov and Mr. Ilhomjon Khalilov from the Uzbek National Institute of Metrology (UzNIM) on the occasion of their participation in a technical training program in Electrical Metrology held from 9–20 February 2026 at NIMT.

As part of the program, Mr. Sardor Ikramov attended the course entitled “Calibration of Reference Digital Multimeters (DMM) and Calibrators,” which focused on advanced calibration techniques, traceability to national standards, and best practices in measurement accuracy and uncertainty evaluation. Meanwhile, Mr. Ilhomjon Khalilov participated in the training course “Calibration of Electrical Capacitance and Inductance,” covering calibration methodologies, measurement systems, and practical applications to ensure reliable and internationally recognized measurement results.

The training was delivered by experts from NIMT’s Electrical Metrology Department, combining comprehensive theoretical instruction with hands-on practical sessions to strengthen the participants’ technical competencies and enhance their laboratory capabilities.

This program was implemented under the PTB project “Support to the Reform of the National Quality Infrastructure in Uzbekistan,” in cooperation with Physikalisch-Technische Bundesanstalt (PTB). Through this initiative, NIMT provides technical expertise and resource support to contribute to the strengthening of Uzbekistan’s national measurement infrastructure in alignment with international standards.

The successful completion of this training not only enhanced the technical capabilities of UzNIM personnel in electrical metrology but also further reinforced the strong and ongoing partnership among NIMT, PTB, and UzNIM, fostering continued collaboration and future joint initiatives in the field of metrology.

The National Institute of Metrology (Thailand) (NIMT) congratulates the Office of Atoms for Peace (OAP), Thailand’s Designated Institute in ionizing radiation, on its official acceptance as a member of Section I “Dosimetry” of the Consultative Committee for Ionizing Radiation (CCRI).

The 2025 meeting of CCRI Section I “Dosimetry” was held in Minamisoma City, Fukushima Prefecture, Japan, during 17–18 September 2025. The meeting was hosted with the support of the Fukushima Institute for Research Education and Innovation (F-REI) and the National Metrology Institute of Japan (NMIJ). Approximately 50 participants, including 10 online attendees, convened to review the current status of dosimetry worldwide and to discuss future technical developments in ionizing radiation metrology.

During the meeting, the Committee officially welcomed two new members: OAP (Thailand) and FANR (United Arab Emirates). The inclusion of OAP as a member of CCRI Section I reflects Thailand’s strengthened technical capabilities and international recognition in the field of radiation dosimetry. OAP’s presentation to the Committee further demonstrated the country’s commitment to advancing measurement standards in ionizing radiation and contributing actively to the global metrology community.

As Thailand’s National Metrology Institute, NIMT expresses its sincere congratulations to OAP on this important milestone. OAP’s membership in CCRI Section I enhances Thailand’s visibility and role in the international metrology system, reinforces national measurement infrastructure, and supports the country’s continued development in radiation protection, medical dosimetry, and nuclear applications.

This achievement marks another significant step in strengthening Thailand’s position within the international metrology framework and promoting excellence in ionizing radiation measurements for the benefit of society and industry.

The National Institute of Metrology (Thailand) (NIMT) has the honor of welcoming distinguished representatives from the International Institute of Acoustics and Vibration (IIAV) on 6 February 2026 for discussions regarding the potential hosting of the International Congress on Sound and Vibration (ICSV) 2027 in Thailand.

On this occasion, Pol. Lt. Gen. Pornchai Suteerakune, Director of NIMT, together with Mr. Anusorn Tonmueanwai, Deputy Director, and NIMT team, warmly received Dr. Malcolm J. Crocker, Executive Director of the International Institute of Acoustics and Vibration (IIAV), and Mr. Michel Rosmolen, Section Director for Southeast Asia.

The meeting focused on preparations and collaborative planning for organizing ICSV 2027 in Thailand. The International Congress on Sound and Vibration (ICSV) is a prestigious global conference that brings together leading experts, researchers, and professionals in the fields of acoustics and vibration from around the world.

NIMT expressed its strong willingness to serve as the host of ICSV 2027 and looks forward to welcoming participants from across the globe to Thailand for this important international event.

The visit reflects Thailand’s strong commitment and readiness to strengthen international collaboration in acoustics and vibration, while further enhancing the country’s role in the world metrology and scientific community.

The National Institute of Metrology (Thailand) (NIMT) is honored to welcome Mr. Taichi Yamazaki, Senior Researcher of the Organic Standards Group, Research Institute for Material and Chemical Measurement, National Metrology Institute of Japan (NMIJ), who is serving as a technical expert at NIMT from 3–13 February 2026.

Mr. Yamazaki was invited as a specialist in quantitative Nuclear Magnetic Resonance (qNMR) to provide technical consultation on the evaluation of organic compound purity using qNMR techniques. As a primary measurement method in chemical metrology, qNMR enables the direct determination of purity and content without the need for compound-specific reference standards, while requiring only small sample quantities.

His visit is expected to strengthen the technical capabilities of NIMT metrologists, support the development of new measurement services, and enhance the production of certified reference materials for high-purity substances — including important herbal compounds and controlled substances. This collaboration will contribute to reducing Thailand’s dependence on costly imported reference materials.

NIMT sincerely appreciates Mr. Yamazaki’s valuable expertise and looks forward to continued cooperation with NMIJ in advancing chemical metrology.

The National Institute of Metrology (Thailand) (NIMT) further strengthened international cooperation in metrology by conducting training in Acoustics and Vibration for the Uzbek National Institute of Metrology (UzNIM) during 26–30 January 2026 at UzNIM, Republic of Uzbekistan.

In the field of Acoustics, Ms. Panisara Kongthavorn delivered an intensive technical training program covering the calibration of sound level meters and sound calibrators, microphone calibration, and the evaluation of anechoic chambers. The training emphasized both acoustic and electrical characteristics, with detailed reviews of UzNIM’s existing calibration procedures, discussions on measurement uncertainty budgets, and alignment with international standards. Particular attention was given to free-field microphone sensitivity calibration using comparison methods, as well as the assessment and measurement systems of UzNIM’s anechoic chamber.

Concurrently, Mr. Pairoj Rattanangkul conducted Vibration Metrology Training, focusing on the transfer of vibration magnitude values from primary to secondary standards. The program addressed primary vibration calibration using laser vibrometers, secondary vibration calibration in accordance with ISO 16063-21, calibration of conditioning amplifiers, and vibration exciter calibration following ISO 16063-44. Comprehensive sessions on uncertainty evaluation, calibration reporting, and traceability statements were also provided, ensuring that participants could confidently apply the methodologies within their laboratories.

This training activity was implemented under the Physikalisch-Technische Bundesanstalt (PTB) project “Supporting the Reform of the National Quality Infrastructure in Uzbekistan”, which aims to enhance Uzbekistan’s national measurement capabilities in line with international best practices.

The successful completion of the Acoustics and Vibration metrology training represents a significant step in advancing UzNIM’s technical competence and laboratory capabilities. It also reaffirms the strong collaborative partnership among NIMT, PTB, and UzNIM, laying a solid foundation for continued cooperation and future joint initiatives in the field of metrology.

Dr. Jariya Buajarern, Metrology Expert, and Dr. Sivinee Sawatdiaree, RDI Manager, from NIMT, served as advisors for an advisory programme conducted at the Uzbek National Institute of Metrology (UzNIM) during 19–23 January 2026. The programme focused on practical examples drawn from NIMT’s institutional experience in management, policy formulation, and quality systems, with the aim of strengthening strategic capacity and long-term sustainability of UzNIM.

The five-day advisory programme covered a wide range of interconnected topics, including strategic dialogue on the transition from maintaining CMCs to long-term NMI development, integration of management systems, digital transformation of quality and operational processes, technical sustainability, emerging fields such as quantum metrology, and the role of research, development and innovation (RDI) in national metrology institutes. Interactive sessions, peer exchanges, laboratory visits, and practical demonstrations were used to facilitate in-depth discussion and mutual learning between NIMT and UzNIM experts.

The programme also included an institutional overview of UzNIM, highlighting its role as the national metrology institute of Uzbekistan and its active engagement with international metrology networks. Based on discussions and observations, NIMT provided strategic recommendations covering R&D roadmapping, quantum and digital metrology as future infrastructure, digital transformation as a management decision-support tool, and the evolution of quality management systems from a compliance-based approach to a strategic instrument for organizational development.

In addition, potential areas for future cooperation between UzNIM and NIMT were identified, including joint strategic workshops, exchange of experts and early-career researchers, pilot projects in digital and quantum metrology, and co-development of management and digital tools. The advisory programme concluded with a synthesis of key takeaways and a discussion on next steps and a medium- to long-term collaboration roadmap.

This activity was conducted under the PTB project “Supporting the Reform of the National Quality Infrastructure in Uzbekistan,” implemented by the Physikalisch-Technische Bundesanstalt (PTB), Germany. The advisory programme contributed to strengthening institutional capacity, enhancing the strategic use of management and quality systems, and promoting sustainable, future-oriented development of UzNIM, while reaffirming NIMT’s commitment to international cooperation and the sharing of institutional expertise.