Qualification of the Carbon Dioxide Measurement System to Supervise and Improve the Process of Obtaining Breathing Gas for Oxygen Hyperbaric Conditions

Maintaining a stable carbon dioxide content below the established CTQ¹ requirements in the process of obtaining breathing gas for hyperbaric oxygen conditions is essential for the safety of underwater work. This article discusses the subject of validation of a selected measuring system for on-line control of the breathing gas production process and describes the application of multidimensional sensory systems to control critical parameters of the production process in production systems intended for intensive use away from supply facilities. In this case, the on-line contamination measurement option should be considered². Monitoring of the analysed process from the point of view of its ability to minimise its variability should be oriented towards measuring the input or process values in such a way as to prevent the occurrence of potential defects already at the production stage. The assessment of the CCS - Carbon Dioxide Control System³ selected for testing, designed to control the carbon dioxide content, was performed in DUWT PNA⁴ for the DGKN - 120 complex compressed air supply system⁵. The system evaluation was conducted using MSA⁶ procedures and methods of SPC⁷.