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This document defines the detailed classification of marine fuels within class F (fuels). It is intended to be read in conjunction with ISO 8216-99.
NOTE Class F for fuels has originally been defined as part of the method of classification for petroleum products given in ISO 8681.

The present document in its entirety defines the general requirements and specifications for fuels for use in marine diesel engines and boilers, prior to onboard fuel handling (storage, settling, centrifuging, filtration, heating) before use.
For the purposes of this document, the term “fuels” comprises of the following:
— hydrocarbons from petroleum crude oil, oil sands and shale oil;
— hydrocarbons from synthetic, renewable and/or recycled sources, with molecular structures that are indistinguishable from petroleum hydrocarbons;
— blends of the above with a FAME component, where permitted as per this document.
The general requirements and specifications for fuels in this document can also be applied to fuels used in stationary diesel engines of the same or similar type as those used for marine purposes.
This document specifies seven categories of distillate fuels, one of which is for diesel engines used for emergency purposes. It also specifies five categories of residual fuels for sulfur content exceeding 0,50 % by mass, four categories of residual fuels for sulfur content at or below 0,50 % by mass and five categories of residual fuels containing fatty acid methyl ester(s) (FAME).
NOTE 1 See Annex B - Composition of marine fuels.
NOTE 2 Appropriate guidance about fuel treatment systems for diesel engines is published by the International
Council on Combustion Engines (CIMAC)[5].
NOTE 3 Requirements for gas turbine fuels used in marine applications are specified in ISO 4261.
NOTE 4 Category DFA can cover up to 100 % FAME, and DM-grades can cover up to 100 % HVO. See Clause 9.

This document specifies requirements and test methods for marketed and delivered high FAME (B20 and B30) diesel fuel for use in diesel engine vehicles designed or subsequently adapted to run on high FAME (B20 and B30) fuel. High FAME (B20 and B30) diesel fuel is a mixture of up to 20 % (V/V) in total and up to 30 % (V/V) in total respectively fatty acid methyl esters (commonly known as FAME) complying with EN 14214 and automotive diesel fuel complying with EN 590. For maintenance and control reasons high FAME (B20 and B30) diesel fuel is to be used in captive fleets that are intended to have an appropriate fuel management (see Clause 4). NOTE 1 This product is allowed in Europe [4], but national legislation can set additional requirements or rules concerning, or even prohibiting, marketing or delivering of the product. NOTE 2 For the purposes of this document, the terms "% (m/m)" and "% (V/V)" are used to represent respectively the mass fraction and the volume fraction. NOTE 3 In this document, A-deviations apply (see Annex A).