5.3 Test fuels
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Statutory Documents - IMO Publications and Documents - International Codes - NOx Technical Code - Technical Code on Control of Emission of Nitrous Oxides from Marine Diesel Engines - Chapter 5 - Procedures for NOx emission measurements on a test bed - 5.3 Test fuels

5.3 Test fuels

  5.3.1 Fuel characteristics may influence the engine exhaust gas emission. Therefore, the characteristics of the fuel used for the test shall be determined and recorded. Where reference fuels are used, the reference code or specifications and the analysis of the fuel shall be provided.

  5.3.2 The selection of the fuel for the test depends on the purpose of the test. Unless otherwise agreed by the Administration and when a suitable reference fuel is not available, a DM-grade marine fuel specified in ISO 8217, 1996, with properties suitable for the engine type, shall be used.

  5.3.3 The fuel temperature shall be in accordance with the manufacturer's recommendations. The fuel temperature shall be measured at the inlet to the fuel injection pump or as specified by the manufacturer, and the temperature and location of measurement recorded.


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