Chapter 5.6 - Permissible deviations of instruments for engine-related parameters and other essential parameters
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Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC/Circular.473 – Approved Unified Interpretations to MARPOL Annex VI and the NOx Technical Code – (29 July 2005) - Annex - Unified Interpretations to MARPOL Annex VI And the NOx Technical Code - Technical Code on Control of Emission of Nitrogen Oxides from Marine Diesel Engines (NOx Technical Code) - Chapter 5.6 - Permissible deviations of instruments for engine-related parameters and other essential parameters

Chapter 5.6 - Permissible deviations of instruments for engine-related parameters and other essential parameters

Parent topic: Technical Code on Control of Emission of Nitrogen Oxides from Marine Diesel Engines (NOx Technical Code)

Chapter 5.6 reads as follows:

 The calibration of all measuring instruments shall be traceable to recognized international standards and shall comply with the requirements as set out in 1.3.1 of appendix 4 of this Code.

Interpretation:

 For application of this section it should be interpreted that the measuring instruments as detailed under appendix 4 is not to be considered a definitive listing. Where additional measuring instruments are required in order to define an engine's NOx emission performance, for example the measurement of peak cylinder or charge air pressures, then those measuring instruments should also be calibrated. As given by 1.3.1 of appendix 4 the recognized standards may be national or international.

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