Gas & Air Flow Calibration.

UKAS gas flow calibration means your gas flow meter or controller is calibrated by a laboratory independently assessed and accredited by the United Kingdom Accreditation Service to ISO/IEC 17025:2017. The calibration establishes the actual flow error and measurement uncertainty at defined points across the required flow range, using a reference standard traceable to national measurement standards.

Labcal’s UKAS-accredited gas flow calibration covers a range of 0.025 mL/min to 13,000 L/min. This covers ultra-low flow instruments used in laboratory and analytical applications through to high-flow industrial instruments. If your instrument falls outside this range, contact us and we will advise on suitability.

Labcal calibrates gas flow instruments using air, argon, carbon dioxide, helium, oxygen and nitrogen. Calibration results are specific to the gas used. If a flow meter calibrated on air is to be used with a different gas, a gas conversion factor must be applied. We can advise on multi-gas calibration and conversion requirements for your specific instrument and application.

In pharmaceutical manufacturing and other GMP-regulated environments, annual calibration is commonly adopted. For instruments used in environmental sampling or occupational hygiene, the calibration interval is often dictated by the applicable regulatory protocol and may require calibration before and after each sampling campaign. For general laboratory use, annual intervals are typical depending on the criticality of the measurement.

In regulated industries, UKAS accreditation is the expected standard for externally calibrated flow instruments. ISO 9001:2015, GMP guidelines and environmental monitoring frameworks all require measurement traceability, and UKAS accreditation is the recognised route to demonstrating that traceability. Labcal holds UKAS accreditation for gas flow calibration under Lab 0625.