Version 1.0.0 of the SI Reference Point has been officially released.

The SI Reference Point is a digital representation of the SI Brochure, which defines the International System of Units (SI), the world’s only internationally agreed system of units. By making core SI reference information available in machine-readable form, the SI Reference Point helps ensure that the SI can be used consistently in digital applications and data exchange. .

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Supporting digital metrology

The first stable release of the SI Reference Point marks an important milestone in the digital transformation of the international metrology system. It provides a common digital reference for representing SI units in machine-readable form.

The SI Reference Point provides a machine-actionable representation of the SI units that can be accessed and reused across digital environments. This helps support:

• the interoperability and reuse of measurement information;
• digital metrological traceability;
• the harmonization of digital calibration certificates and digital reference material certificates;
• consistent communication between measurement devices and sensor networks.

The SI Reference Point was developed by an international group of experts working through the CIPM Forum on Metrology and Digitalization (FORUM-MD) and its associated working groups.