Air Velocity Calibration.

UKAS air velocity calibration means your anemometer or velocity probe is calibrated by a laboratory independently assessed and accredited by the United Kingdom Accreditation Service to ISO/IEC 17025:2017. Calibration is performed in a controlled wind tunnel environment using a traceable reference velocity standard. The certificate records the actual velocity error and measurement uncertainty at each calibrated point.

Labcal’s UKAS-accredited air velocity calibration covers 0.1 to 70 m/s. We are equipped with multiple wind tunnels, which allows us to accommodate a wide range of instruments and measurement ranges. For applications requiring very low measurement uncertainty, optional Laser Doppler Anemometer (LDA) calibration is also available. If your instrument falls outside the standard range, contact us to discuss suitability.

Laser Doppler Anemometry is a non-contact optical technique for measuring air velocity with very low measurement uncertainty. Labcal offers LDA calibration as an option for instruments where lower uncertainty is required than can be achieved with conventional wind tunnel methods. This is relevant for research applications, calibration of reference instruments and situations where the standard calibration uncertainty is insufficient for the measurement requirement. Contact us to discuss whether LDA calibration is appropriate for your application.

In pharmaceutical cleanrooms, HVAC systems and other regulated environments, annual calibration is commonly adopted. For portable anemometers used in fume cupboard or cleanroom commissioning, calibration is often performed annually or prior to critical projects. For environmental monitoring instruments, calibration intervals should be determined by the user’s quality management system and the criticality of the application.

Air velocity calibration is required for fume cupboard face velocity testing (COSHH compliance), cleanroom and HVAC system commissioning and verification, asbestos enclosure pressure and velocity testing, pharmaceutical cleanroom environmental monitoring, fire and smoke ventilation system verification, and research and academic aerodynamic measurement. In most of these applications, UKAS-accredited calibration is the expected or required standard.