9.1 CO analyser interference check
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - NOx Technical Code (2008) - Technical Code on Control of Emission of Nitrogen Oxides from Marine Diesel Engines - Appendix 4 - Calibration of the analytical and measurement instruments - 9 Interference effects with CO, CO2, NOx and O2 analysers - 9.1 CO analyser interference check

9.1 CO analyser interference check

 Water and CO2 can interfere with the CO analyser performance. Therefore, a CO2 span gas having a concentration of 80% to 100% of full scale of the maximum operating range used during testing shall be bubbled through water at room temperature and the analyser response recorded. The analyser response must not be more than 1% of full scale for ranges equal to or above 300 ppm or more than 3 ppm for ranges below 300 ppm.

Parent topic: 9 Interference effects with CO, CO2, NOx and O2 analysers
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