ISO 8217:2005(F) fuel quality standard for distillate marine fuels.

Parameter Unit Limit DMX DMA DMB DMC
Density at 15 °C kg/m³ Max - 890.0 900.0 920.0
Viscosity at 40 ° C mm²/s Max 5.5 6.0 11.0 14.0
Viscosity at 40 ° C mm²/s Min 1.4 1.5 - -
Micro Carbon Residue
at 10% Residue
% m/m Max 0.30 0.30 - -
Micro Carbon Residue % m/m Max - - 0.30 2.50
Water % V/V Max - - 0.3 0.3
Sulfur 1 % (m/m) Max 1.0 1.5 2.0 2.0
Total Sediment Existent % m/m Max - - 0.10 0.10
Ash % m/m Max 0.01 0.01 0.01 0.05
Vanadium mg/kg Max - - - 100
Aluminium + Silicon mg/kg Max - - - 25
Flash point °C Min 43 60 60 60
Pour point, Summer °C Max - 0 6 6
Pour point, Winter °C Max - -6 0 0
Cloud point °C Max -16 - - -
Calculated Cetane Index   Min 45 40 35 -
Appearance     Clear & Bright - -
Zinc 2 mg/kg Max- - 15
Phosphorus 2 mg/kg Max- - 15
Calcium 2 mg/kg Max- - 30

1: A sulfur limit of 1.5% m/m will apply in SOx Emission Control Areas designated by the International Maritime Organization, when its relevant Protocol comes into force. There may be local variations.

2: The Fuel shall be free of ULO.
A Fuel is considered to be free of ULO if one or more of the elements are below the limits.All three elements shall exceed the limits before deemed to contain ULO.

The table above taken from ISO 8217 Third Edition 2005-11-01 Petroleum products - Fuels (class F) - Specifications of marine fuels has been reproduced with the permission of the International Organization for Standardization, ISO. This standard and any other referenced ISO standard ban be obtained from any member body or directly from the Central Secretariat, ISO, Case postal 56, 1211 Geneva 20, Switzerland. Copyright remains with ISO.