5.4 Calibration
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 - 5 Calibration procedure - 5.4 Calibration

5.4 Calibration

  5.4.1 Each normally used operating range shall be calibrated. Analysers shall be calibrated not more than 3 months before being used for testing or whenever a system repair or change is made that can influence calibration, or as per provided for by 1.3.2.2.

  5.4.2 Using purified synthetic air (or nitrogen) the CO, CO2, NOx and O2 analysers shall be set at zero. The (H)FID analyser shall be set to zero using purified synthetic air.

  5.4.3 The appropriate calibration gases shall be introduced to the analysers, the values recorded, and the calibration curve established accordingly.


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