A leading global supplier of premium calibration gases for marine and offshore applications.

Calibration gas is essential for ensuring gas detection equipment provides accurate and reliable readings. On vessels, detectors are used to monitor potentially hazardous gases such as oxygen (O₂), hydrogen sulphide (H₂S), and carbon monoxide (CO), helping protect crew, cargo, and onboard operations. Regular calibration supports safer working conditions in areas such as engine rooms, cargo holds, ballast tanks, and other confined spaces where gas leaks or oxygen depletion can present serious risks. It also helps vessels maintain compliance with recognised maritime safety requirements, including SOLAS.

Gas detectors on board vessels should be calibrated in line with the manufacturer's guidance, vessel procedures and the specific gases being monitored. As a general guide, calibration is often carried out every 6 to 12 months, with regular bump testing between calibrations to confirm the detector is responding correctly. Marine environments can be challenging, with exposure to humidity, temperature changes, saltwater and demanding operating conditions. Regular calibration helps ensure gas detection equipment remains accurate and dependable, particularly in critical areas such as fuel storage spaces, engine rooms, cargo holds, and during tank entry.

Common calibration gases used on vessels include oxygen (O₂), carbon monoxide (CO), hydrogen sulphide (H₂S), and methane (CH₄). These gases are supplied in precise concentrations or mixtures to support the accurate calibration and testing of gas detection equipment. On board vessels, calibration gases are commonly used to test detectors in areas such as machinery spaces, cargo holds, lifeboat compartments, fuel storage areas, and other enclosed or high-risk environments. Correct calibration helps ensure gas detectors can identify hazardous gas levels accurately, supporting crew safety, cargo protection, and safe vessel operations.