Gas reference materials

Providing ultimate references for highly accurate measurements

NPL has an experienced team of scientists working in extensive facilities, providing a unique capability in gas analysis. We supply an extensive range of gas calibration mixtures through a chain of direct comparisons to our national standards. These are used to underpin highly-accurate measurements of ambient air quality, natural gas, industrial emissions, vehicle and aircraft emissions and occupational exposure.

As the UK's National Metrology Institute (NMI), NPL provides traceability for gas-related measurement to internationally-recognised standards. We work in collaboration with NMIs around the world to ensure that these measurements are comparable, wherever and whenever they are made.

As well as providing a wide range of bespoke gas mixtures, NPL has launched a new range of standard gas mixtures which represent compositions that are in the highest demand and in some cases, where stability is good, may be made in advance to reduce lead times.

See NPL’s Calibration and Measurement Capabilities in the BIPM Key Comparison Database.

NPL has signed a Memorandum of Cooperation with the Chemical Sciences Division at NIST. For a selection of components outlined in the Declaration of Equivalence, NPL can offer gas reference materials and calibration services to organisations that require NIST traceability.

Gas and particle metrology measurement services brochure

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