6.4.9 Data for emission calculation
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 - Chapter 6 - Procedures for demonstrating compliance with NOx emission limits on board - 6.4 Direct measurement and monitoring method - 6.4.9 Data for emission calculation

6.4.9 Data for emission calculation

  6.4.9.1 The output of the analysers shall be recorded both during the test and during all response checks (zero and span). This data shall be recorded on a strip chart recorder or other types of data recording devices. Data recording precision shall be in accordance with 5.9.7.1.

  6.4.9.2 For the evaluation of the gaseous emissions, a 1-Hertz minimum chart reading of a stable 10-minute sampling interval of each load point shall be averaged. The average concentrations of NOx, and if required CO2, and optionally CO, HC and O2, shall be determined from the averaged chart readings and the corresponding calibration data.

  6.4.9.3 As a minimum, emission concentrations, engine performance and ambient condition data shall be recorded over the aforementioned 10-minute period.

Parent topic: 6.4 Direct measurement and monitoring method
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