Radioactive gas standards

Ensuring traceability

We provide services giving traceability to measurements of radioactive gases within the nuclear industry and for environmental monitoring.

We can provide radioactive gas standards of ³H, ¹⁴C (CO₂ or CH₄), ⁸⁵Kr and ¹³³Xe*, contained in pressurised cylinders.   

Reference atmospheres of ³H, ¹¹C (CO₂), ¹⁴C (CO₂ or CH₄), ⁴¹Ar, ⁸⁵Kr and ¹³³Xe* can be produced at NPL for calibration of gas monitors. A mixed atmosphere of ^85mKr, ⁸⁷Kr, ⁸⁸Kr, ^135mXe and ¹³⁵Xe can also be produced.

Bespoke gas standards can be produced for sale or calibration of monitors on-site at NPL.

Please note ¹³³Xe standards contain ^131mXe and ^133mXe impurities.

Don’t see what you are looking for? Our diverse skill set enables us to provide bespoke solutions. Please contact us to discuss your requirements.

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