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AGAS - Together we can


Trace-A‑Gas® is a premium leak detection solution. Trace-A‑Gas® is a 5% hydrogen and 95% nitrogen mixture which is non-flammable, non-toxic and safe for the environment. When used with a suitable electronic leak detector, Trace-A‑Gas® will enable engineers to detect much smaller leaks than they can with oxygen-free nitrogen and a leak detection spray.

Packaging Information





  • Available from A‑Gas wholesale partners - find a supplier
  • Store cylinders in a cool, dry, well-ventilated area, out of direct sunlight
  • A‑Gas operates a returnable cylinder fleet - empty cylinders are to be returned to an A‑Gas wholesale partner
  • For alternative or larger package sizes please contact A‑Gas on 01275376600 or via the Contact Us form

Product Features and Benefits

  • Applications: leak-testing refrigeration systems, leak-testing air-conditioning systems, strength and pressure testing (if oxygen-free nitrogen isn’t available)
  • Hydrogen is the smallest molecule, enabling it to move rapidly through the system and quickly locate leaks
  • Trace-A‑Gas® can detect much smaller leaks than other methods: it is up to 100 times more sensitive than leak detection spray and can detect leaks of less than 5 grams a year
  • Trace-A‑Gas® tests all areas of the system, including insulated or difficult-to-access pipework where leak detection spray cannot easily be used
  • Using Trace-A‑Gas® provides real time results: spend less time on-site
  • Using Trace-A‑Gas® can reduce costs by avoiding the need to re-work
  • Suitable detection can quickly identify the Trace-A-Gas® product, enabling engineers to easily locate a leak
  • Non-flammable, non-toxic and safe for the environment
  • The information contained within this website is for guidance only - for further system-specific advice please contact us directly