 |
|
ISO 8217 Specifications for Marine Residual Fuels
|
|
|
|
These ISO specifications are provided for information. For guaranteed and typical specifications in the port you require fuel, please contact your CGMP representative.
Table 1:
Requirements for Marine Residual Fuels – 2005
Table 2:
Requirements for Marine Distillate Fuels – 2005
Important Changes
- Maximum density of the lower residual fuel grades has
been lowered.
RMD 80 is now 980 kg/m3 versus 985 for the old RMD 15, RMB 30 is now
975 kg/m3 vs. 981 for the old RMB 10 and RMA 30 is now 960 kg/m3 vs. 975 for
the old RMA 10.
- The viscosity of the residual fuels is expressed as
viscosity @ 50 °C; fuel categories now included are RMA and RMB 30, RMD 80,
RME and RMF 180, RMG RMH RMK 380 and RMH RMK 700.
- The max water content for all residual grades is set at
0.5 v% max.
- The max sulfur content for 180 Cst and grades above is
4.5 m%, in line with the MARPOL global sulfur cap.
- For both distillate and residual grades, there is a
requirement on the presence of used lubricating oil. A product shall
be considered to be free of ULO if one or more of the elements Zn, P and Ca
are below or at the limits (respectively 15,15,30 mg/kg). Or all three
elements shall exceed those limits before a fuel shall be considered to
contain ULO.
- For DMB type marine diesel oil, a total sediment existent
limit of 0.10 m/m % is in place. However, if the clarity of DMB category
products affords visual inspection, and if they appear free from visible
sediment and water, testing for total sediment existent and for water is not
required.
- The standard includes also several informative annexes on
e.g. Na and V, ignition quality, precision and interpretation of test results,
ULO in marine fuels and acidity.
|
