8.1 CO analyser interference check
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - NOx Technical Code - Technical Code on Control of Emission of Nitrous Oxides from Marine Diesel Engines - Appendix 4 - Calibration of the analytical instruments - 8 Interference effects with CO, CO2, NOx and O2 analysers - 8.1 CO analyser interference check

8.1 CO analyser interference check

 Water and CO2 may 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 shall not be more than 1% of full scale for ranges greater than or equal to 300 ppm or more than 3 ppm for ranges below 300 ppm.

Parent topic: 8 Interference effects with CO, CO2, NOx and O2 analysers
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