國際計量局局長安妮特·古和國際法制計量局局長安東尼·唐納倫2026年世界計量日聯合致辭

每年，“世界計量日”都為我們提供了審視計量在社會發展中的關鍵作用的契機，以及推動全球測量結果可信可比、廣泛可靠的國際合作。

在紀念《米制公約》簽署150周年這一里程碑之年過后，2026年世界計量日繼續引領我們放眼未來。本年度主題“計量：建立信任的基石”，直接闡明了科學、治理與公信力之間的內在關聯，也彰顯了計量領域默默耕耘、為科學決策提供堅實支撐。

測量何以成為建立信任的基石

可靠的測量數據，是政策制定者應對各類復雜挑戰的依據，無論是守護公眾健康、保障公共安全，還是統籌能源系統、開展環境監測、維護日常市場交易，都離不開精準計量。當數據準確、可比且可溯源，決策方能更清晰、更可信賴。

測量不僅要具有科學嚴謹性，更需在清晰、規范的法律框架下實施，才能進一步夯實信任根基。科學計量保障測量結果準確、跨境可比；法制計量確保測量在實踐中統一公正實施。二者協同發力，推動政策目標轉化為惠及公共利益的務實舉措。

測量在制定政策中的實踐

計量對政策的影響，在醫療健康等領域尤為凸顯。例如新冠疫情期間，全球各國計量實驗室通力協作，為病毒檢測、防護裝備及疫苗研發提供可靠測量支撐。依靠可比、可溯源的測量數據，政府衛生健康部門能夠在關鍵時期研判風險、評估成效、科學施策。

同樣，長期環境監測亦依賴可信的測量數據。基于國際可比的大氣、水質及污染物監測數據，各國政府部門能夠有效研判長期態勢，為制定保障公眾健康、守護自然資源的政策奠定堅實基礎。若對測量方法與數據比對缺乏信心，相關決策將失去穩固根基。

計量亦是質量保障與市場公平交易的重要支撐。以食品安全為例，計量體系有效提升了各國對食品污染物、殘留物質及營養成分的檢測能力，幫助政府監管部門和生產企業證明產品符合既定的標準規范。

與此同時，法制計量框架為加油機、水表、電表等商用計量器具的準確可靠運行提供保障。計量器具依法依規接受監管，既能有效增進經營者與消費者之間的互信，也能進一步提升公眾對政府部門的信賴與認可。

以合作凝聚信任

歸根結底，計量為政策制定提供科學依據，為社會治理構建制度保障，并支撐經濟社會穩定。當測量結果可靠、應用規范統一，信任便會超越數據本身，延伸至依托測量數據的各類機構、各項協議與各類決策之中。

值此世界計量日之際，我們誠邀全球計量界同仁，深刻審視可信的測量在科學決策中的重要作用，并使得這一信任成為可能的合作和共同承諾。

期待與各界同仁共慶5月20日世界計量日！

Each year, World Metrology Day offers an opportunity to reflect on the essential role measurement plays in society — and on the cooperation that allows measurements to be trusted, compared and relied upon world-wide.

Following a landmark year celebrating 150 years of the Metre Convention, World Metrology Day 2026 invites us to look forward. This year’s theme, Metrology: building trust in policy making, speaks directly to the relationship between science, governance and public confidence, and to the quiet work that enables decisions to be made with assurance.

Why measurement matters for building trust in policy making

Reliable measurements provide the evidence policymakers depend on when addressing complex challenges — from protecting public health and ensuring safety, to managing energy systems, monitoring the environment and supporting everyday market transactions. When data is accurate, comparable and traceable, decisions can be taken with greater clarity and confidence.

Trust is strengthened further when measurements are not only scientifically sound, but also applied within clear and predictable legal frameworks. Scientific metrology ensures that measurements are accurate and comparable across borders; legal metrology ensures that they are applied consistently and fairly in practice. Together, they help translate policy objectives into practical provisions that serve the public interest.

From measurement to policy in practice

The impact of metrology on policy can be seen clearly in areas such as healthcare. During the COVID-19 pandemic, for example, metrology laboratories around the world worked to support reliable measurements for testing, protective equipment and vaccine development. Comparable and traceable data enabled health authorities to assess risks, evaluate performance and act on evidence at a critical moment.

Similarly, long-term environmental monitoring relies on trusted measurements. Internationally comparable measurements of atmospheric gases, water quality and pollutants underpin the data used by authorities to track trends over time and to design policies that protect health and natural resources. Without confidence in how these measurements are made and compared, such decisions would lack a stable foundation.

Metrology also underpins quality assurance and fair market practices. In food safety, for example, metrology programmes have strengthened countries’ ability to measure contaminants, residues and nutritional content, helping authorities and producers demonstrate that products meet agreed specifications.

In parallel, legal metrology frameworks help ensure that measuring instruments used in commerce, such as fuel dispensers, water meters and electricity meters, perform as expected. When instruments are subject to appropriate legal control, trust is strengthened not only between producers and consumers, but also between public authorities and the communities they serve.

Trust built through cooperation

Ultimately, metrology underpins the evidence that informs policy, the frameworks that protect society, and support economic and social stability. When measurements are reliable and consistently applied, trust extends beyond data — to the institutions, agreements and decisions that rely on them.

This World Metrology Day we invite the global metrology community to reflect on the role trusted measurements play in shaping decisions, and to recognise the cooperation and shared commitment that make this trust possible.

We look forward to celebrating with you all, on 20 May!