2 Verification Procedure Stage One
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Statutory Documents - IMO Publications and Documents - Circulars - Marine Environment Protection Committee - MEPC.1/Circular.614 – Unified Interpretations to MARPOL Annex VI – (5 January 2009)Sulphur Limits in Fuel and Fuel Oil Verification Procedure for MARPOL Annex VI - Annex – Unified Interpretations to MARPOL Annex VI Related to Sulphur Limits in Fuel and Fuel Oil Verification - Appendix – Fuel Oil Verification Procedure for MARPOL Annex VI Fuel Oil Samples - 2 Verification Procedure Stage One

2 Verification Procedure Stage One

  2.1 The MARPOL sample should be delivered by the competent authority to the laboratory.

  2.2 The laboratory should:

  • .1 record the details of the seal number and the sample label on the test record;

  • .2 confirm that the condition of the seal on the MARPOL sample has not been broken; and

  • .3 reject any MARPOL sample where the seal has been broken.

  2.3 If the seal of the MARPOL sample has not been broken, the laboratory should proceed with the verification procedure and should:

  • .1 ensure that the MARPOL sample is thoroughly homogenized;

  • .2 draw two sub-samples from the MARPOL sample; and

  • .3 reseal the MARPOL sample and record the new reseal details on the test record.

  2.4 The two sub-samples should be tested in succession, in accordance with the specified test method referred to in Appendix V. For the purposes of this verification procedure, the results of the test analysis should be referred to as ”A”and ”B”.

  • .1 If the results of ”A”and ”B” are within the repeatability (r) of the test method, the results should be considered valid.

  • .2 If the results of ”A”and ”B” are not within the repeatability (r) of the test method, both results should be rejected and two new sub-samples should be taken by the laboratory and analysed. The sample bottle should be resealed in accordance with paragraph 2.3.3 above after the new sub-samples have been taken.

  2.5 If the test results of ”A”and ”B” are valid, an average of these two results should be calculated thus giving the result referred to as ”X”.

  • .1 If the result of ”X” is equal to or falls below the standards required by Annex VI, the fuel oil should be deemed to meet the requirements.

  • .2 If the result of ”X” is greater than the standards required by Annex VI, Verification Procedure Stage 2 should be conducted; however, if the result of ”X” is greater than the specification limit by 0.59R (where R is the reproducibility of the test method), the fuel oil should be considered non-compliant and no further testing is necessarily.

Parent topic: Appendix – Fuel Oil Verification Procedure for MARPOL Annex VI Fuel Oil Samples
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