关于船舶燃油的各种分类晕了。

Sakhalin

• MGO (Marine gas oil) - roughly equivalent to No. 2 fuel oil, made from distillate only
• MDO (Marine diesel oil) - A blend of heavy gasoil that may contain very small amounts of black refinery feed stocks, but has a low viscosity up to 12 cSt so it need not be heated for use in internal combustion engines
• IFO (Intermediate fuel oil) A blend of gasoil and heavy fuel oil, with less gasoil than marine diesel oil
• MFO (Marine fuel oil) - same as HFO (just another "naming")
• HFO (Heavy fuel oil) - Pure or nearly pure residual oil, roughly equivalent to No. 6 fuel oil
  

• IFO 380 - Intermediate fuel oil with a maximum viscosity of 380 centistokes (<3.5% sulphur)
• IFO 180 - Intermediate fuel oil with a maximum viscosity of 180 centistokes (<3.5% sulphur)
• LS 380  - Low-sulphur (<1.0%) intermediate fuel oil with a maximum viscosity of 380 centistokes
• LS 180  - Low-sulphur (<1.0%) intermediate fuel oil with a maximum viscosity of 180 centistokes
• MDO - Marine diesel oil.
• MGO - Marine gasoil.
• LSMGO  - Low-sulphur (<0.1%) Marine Gas Oil - The fuel is to be used in EU Ports and Anchorages. EU Sulphur directive 2005/33/EC
• ULSMGO - Ultra-Low-Sulphur Marine Gas Oil - referred to as Ultra-Low-Sulfur Diesel (sulphur 0.0015% max) in the US and Auto Gas Oil (sulphur 0.001% max) in the EU. Maximum sulphur allowable in US territories and territorial waters (inland, marine and automotive) and in the EU for inland use.
  

Marine distillate 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
	mm²/s	Min	1.4	1.5	-	-
Water	% V/V	Max	-	-	0.3	0.3
Sulfur1	% (m/m)	Max	1.0	1.5	2.0	2.0
Aluminium + Silicon2	mg/kg	Max	-	-	-	25
Flash point3	°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	-

Marine residual fuels
Parameter	Unit	Limit	RMA 30	RMB 30	RMD 80	RME 180	RMF 180	RMG 380	RMH 380	RMK 380	RMH 700	RMK 700
Density at 15 °C	kg/m3	Max	960.0	975.0	980.0	991.0	991.0	991.0	991.0	1010.0	991.0	1010.0
Viscosity at 50 °C	mm²/s	Max	30.0	30.0	80.0	180.0	180.0	380.0	380.0	380.0	700.0	700.0
Water	% V/V	Max	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Sulfur1	% (m/m)	Max	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Aluminium + Silicon2	mg/kg	Max	80	80	80	80	80	80	80	80	80	80
Flash point3	°C	Min	60	60	60	60	60	60	60	60	60	60
Pour point, Summer	°C	Max	6	24	30	30	30	30	30	30	30	30
Pour point, Winter	°C	Max	0	24	30	30	30	30	30	30	30	30

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