ISO/PAS-23263 Petroleum products - Fuels (class F) - Considerations for fuel suppliers and users regarding marine fuel quality in view of the implementation of maximum 0,50 % sulfur in 2020


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This document addresses quality considerations that apply to marine fuels in view of the implementation of maximum 0,50 mass % S in 2020 and the range of marine fuels that will be placed on the market in response to the international statutory requirements to reduce exhaust gas emissions. It defines general requirements that apply to all 0,50 mass % sulfur (S) fuels and confirms the applicability of ISO 8217 for those fuels.

It gives technical considerations which might apply to particular fuels for the following characteristics:

— kinematic viscosity;

— cold flow properties;

— stability;

— ignition characteristics;

— catalyst fines.

Additionally, it provides considerations on the compatibility between fuels and additional information on ISO 8217:2017, Annex B (see Annexes B and D).

NOTE 1 For the purposes of this document, 0,50 mass % S fuels refers to distillate and residual fuels with a sulfur content up to 0,50 mass %.

NOTE 2 For the purposes of this document, "mass %" and "volume %" are used to represent the mass and volume fractions respectively.

NOTE 3 This document can also be used in conjunction with earlier editions of ISO 8217 in the event an earlier edition is referenced in the commercial agreement between parties.




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Document Number

ISO/PAS 23263:2019

Revision Level




Publication Date

Sept. 1, 2019

Committee Number

ISO/TC 28/SC 4