» World Metrology Day

17 May, 2018

World Metrology Day, an annual event during which more than 80 countries celebrate the impact of measurement on our daily lives, will take place this Sunday (May 20th).

This date was chosen in recognition of the signing of the Metre Convention on 20 May 1875, the beginning of formal international collaboration in metrology. Each year World Metrology Day is organised and celebrated jointly by the International Bureau of Weights and Measures (BIPM) and the International Organization of Legal Metrology (OIML) with the participation of the national organisations responsible for metrology.

The theme for World Metrology Day 2018 is Constant evolution of the International System of Units (SI). This theme was chosen because in November 2018, the General Conference on Weights and Measures is expected to agree one of the largest changes to the International System of Units (the SI) since its inception.

The proposed changes are based on the results of research into new measurement methods that have used quantum phenomena as the basis for standards that are fundamental.  The SI will be based on a set of definitions each linked to the laws of physics and have the advantage of being able to embrace further improvements in measurement science and technology to meet the needs of future users for many years to come.

Accredited calibration laboratories are encouraged to take part to promote the importance of measurement. Further information is available on a dedicated website http://www.worldmetrologyday.org/.