• 2019 September 20 11:28

    Specifications for 0.50% sulphur fuels and the PAS from ISO: IBIA explains

    IBIA says it has been getting queries from several members about when ISO specifications for fuels meeting the 0.50% sulphur limit will be available. Every time, IBIA has explained that existing ISO 8217 specifications will still apply, and the Publicly Available Specification (PAS 23263) from ISO would not introduce any new specifications but rather help explain how ISO 8217 will continue to apply.

    The long-awaited document; “ISO/PAS 23263:2019 Petroleum products — Fuels (class F) — Considerations for fuel suppliers and users regarding marine fuel quality in view of the implementation of maximum 0,50 % sulphur in 2020” has now been published and is available to purchase from the ISO website.

    It confirms that ISO 8217 specifications still apply to fuels meeting the 0.50% sulphur limit, and provides technical advice on fuel characteristics that might apply to particular fuels for kinematic viscosity, cold flow properties, stability, ignition characteristic and catalyst fines. In addition, it provides information on how to consider compatibility between fuels, including test methods for checking whether fuels are compatible.

    In responses to member queries about what specifications will apply to fuels meeting the 0.50% sulphur limit, and when they have been asking for the “latest” or “typical” specifications for very low sulphur fuel oil (VLSFO) produced to meet the 0.50% sulphur limit, IBIA has provided answers that it believes may be useful for all its members, which it shares here.

    First of all, there are no new specifications for 0.50% sulphur fuels. They can still be sold under existing ISO 8217 specifications, preferably the latest edition, ISO 8217:2017, as this includes some extra reporting requirements on cold flow properties for some distillate fuels.

    Fuels with maximum 0.50% sulphur will still need to meet ISO 8217 specifications, and they can still be classified in accordance with Table 1 for distillate marine (DM) fuels or Table 2 for residual marine (RM) fuels, which define the maximum, and some minimum, parameters limits for a number of fuel grades (specifications).

    It may be that instead of using RMG 380 – the most commonly used ISO 8217 specification for RM fuels today – many of the fuels expected to be available would be better described by using other RM specifications in Table 2 of ISO 8217, such as RMA 10, RMB 30, RMD 80 or RME/RMG 180 because many will have lower viscosity than the typical high sulphur fuel oils (HSFOs) sold today.

    For distillate fuels (DM, Table 1 of ISO 8217), we may see more DMB-grade fuels returning to the market. Today most distillates are sold as DMA-grade gasoil meeting a 0.10% sulphur limit, as this is the grade most ships use to meet the legal requirement in emission control areas (ECAs) and at berth in European Union ports.

    Fuel testing agencies have, between them, already tested thousands of samples of VLSFO produced to meet the 0.50% sulphur limit, and have reported considerable variations in viscosity and density. Viscosity in the tested samples is said to typically range from 30 cSt to 380 cSt. A few samples have been below/above that range with lows of 6-7 and highs of up to 500 cSt reported, but these are rare. Density has been seen in a range of 850 to almost 998, with most above 900 kg/m3 which puts them firmly into the Table 2 (RM) specifications.

    IBIA would like to remind all stakeholders that there is plenty of advice on dealing with this expected variety of fuel characteristics in the recently published Joint Industry Guidance on the supply and use of 0.50% – sulphur marine fuel.




2020 August 14

18:27 RS updates requirements for ship technical documentation
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18:05 RS introduces Guidelines on Fatigue Assessment of Ships
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15:35 Aker Carbon Capture AS and Aker Offshore Wind Holding AS – contemplated private placement and listing on Merkur Market
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13:46 NCSP joins national project to improve workforce productivity
13:24 First of six new US Navy tugboats features integrated Furuno Marine Electronics
13:01 Port of Cardiff signs new long-term lease with Stone Supplies Ltd.
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12:10 Okskaya Shipyard lays down fifth multipurpose dry cargo carrier of Project RSD59 for Astrol
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2020 August 13

20:58 Rosmorrechflot promotes Stanislav Uryupin to Port of Novorossiysk Harbourmaster
18:31 Glavgosexpertiza gives nod to Sovetskaya Gavan LPG terminal project
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15:26 Minister for Regional Growth and Local Government opens multi million pound bulks terminal at Teesport
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14:39 First supply of bunker fuel by Gazpromneft Marine Bunker to the brand new cruise ship Mustai Karim
13:52 MABUX releases weekly review of global bunker market
13:21 VIKING delivers first of ambulance boat trio for Hellenic Coastguard
12:32 Grain exports via Krasnodar Krai based seaports in Jan-Jul jump 32%
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10:52 Australia authorities issue fumigation requirements for the 2020/2021 high risk season
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08:26 ME-GI engine sails through sea trials

2020 August 12

18:57 Risavika LNG index for September up by 8.9 % week on week
18:27 Andreas Rieckhof new Chairman of Hamburg Messe und Congress GmbH Supervisory Board
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18:07 Sri Lanka Ports Authority assures safe handling of dangerous cargo under UN regulations
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15:17 Joint R&D Starts for Use of Ammonia in Marine Transportation to Reduce GHG Emissions
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