Calibration gas ensures that gas detection instruments on vessels provide accurate readings of potentially hazardous gases such as oxygen (O2), hydrogen sulphide (H2S), or carbon monoxide (CO). This accuracy is critical for maintaining crew safety, avoiding false alarms, and complying with maritime safety regulations like SOLAS (Safety of Life at Sea).

Application on Vessels:
Gas detectors are used in confined spaces like engine rooms, cargo holds, and ballast tanks, where gas leaks or oxygen depletion can pose serious risks. Regular calibration ensures that these detectors function correctly to protect crew and cargo.