DNV Petroleum Services has tested seven HFO samples from Rotterdam with sulphur content ranging from 4.55% m/m to 4.64% m/m.
DNV Petroleum Services has tested seven HFO samples from Rotterdam with sulphur content ranging from 4.55% m/m to 4.64% m/m, which exceeded the maximum level of 4.50% m/m as specified in ISO 8217:2005. The samples came from deliveries stemmed between 30 June 2009 and 9 July 2009 and three suppliers were involved. Based on the fingerprint parameters, these fuels appear to have originated from the same source. The sulphur levels of the tested samples also exceeded the 4.50% m/m limit stipulated in MARPOL Annex VI Reg. 14. Use of such fuels is prohibited if the ship is trading inside the waters of countries that have ratified MARPOL Annex VI, or if the ship's Flag State has ratified MARPOL Annex VI.
From a technical perspective, elevated sulphur levels may contribute to increased corrosive wear of piston rings and liners if the feed rate and BN (Base Number) of the cylinder lubricant are not adequate. Please refer to the engine manufacturer's recommendations for optimum cylinder lubrication.
This Bunker Alert does not necessarily reflect the overall fuel quality supplied in Rotterdam, but if your ship recently took bunkers in this port or the surrounding ports, or intends to do so, please ensure the fuel quality is known before use. DNVPS laboratories and regional offices span all time zones and can assist you with further commercial and technical advice.
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