3 Verification Procedure Stage Two
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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 - 3 Verification Procedure Stage Two

3 Verification Procedure Stage Two

  3.1 If Stage 2 of the verification procedure is necessary in accordance with paragraph 2.5.2 above, the competent authority should send the MARPOL sample to a second accredited laboratory.

  3.2 Upon receiving the MARPOL sample, the laboratory should:

  • .1 record the details of the reseal number in accordance with 2.3.3 and the sample label on the test record;

  • .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.

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

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

  • .2 If the results of ”C” and ”D” 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 3.1.3 after the new sub-samples have been taken.

  3.4 If the test results of ”C” and ”D” are valid, and the results of ”A”, ”B”, ”C” and ”D” are within the reproducibility (R) of the test method then the laboratory should average the results, which is referred to as ”Y”.

  • .1 If the result of ”Y” 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 ”Y” is greater than the standards required by Annex VI, then the fuel oil fails to meet the standards required by Annex VI.

  3.5 If the result of ”A”, ”B”, ”C” and ”D” are not within the reproducibility (R) of the test method then the Administration may discard all of the test results and, in its discretion, repeat the entire testing process.

  3.6 The results obtained from the verification procedure are final.

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