Lloyd’s Register has issued is warning to shipowners and operators that some of the very low sulphur fuel oil (VLSFO) on sale in Singapore has shown sediment levels above the ISO standard.

The alert from the classification society's Fobas fuel testing unit, comes just a week before the IMO 2020 regulation enters into force.

Fobas said it has tested “a number” of samples, without giving details, which recorded Total Sediment Potential results between 0.16