Iran Fuel Oil CST-380 / Mazut

fuel oil is defined as any liquid that is burned in furnaces, boilers or used in a power generation engines. Fuel oil is obtained from distilled crude oil having a flash-point of approximately 40 ° C. According to this definition, diesel is a type of fuel oil.

Fuel oil is composed of long hydrocarbon chains, particularly alkanes, cycloalkanes and aromatics and placed in the classification of heavy industrial fuels, heavier than gas-oil and Naphtha.

Fuel oil (also known as heavy oil, marine fuel or furnace oil) is a fraction obtained from petroleum distillation, either as a distillate or a residue. Broadly speaking, fuel oil is any liquid fuel that is burned in a furnace or boiler for the generation of heat or used in an engine for the generation of power, except oils having a flash point of approximately 42 °C (108 °F) and oils burned in cotton or wool-wick burners.

Standards and classification
IFO 380 - Intermediate fuel oil with a maximum viscosity of 380 centistokes (<3.5% sulphur)

Transportation and Packing: Bulk
 

Test	Unit	Specification	Test Method
Density @ 15DC	KG/M3	MAX 990	D-1298
Kinomatic  Viscosity @ 50 DC	CST	MAX 380	D-445
Pour Point	DC	MAX 32	D-97
Flash Point	DC	MIN 65	D-93
Sulphur Total	WT%	MAX 3.5	D-1552
Carbon Residue ( Conradson)	WT%	MAX 15	D-189
Ash	WT%	MAX 0.15	D-482
Water & Sediment	VOL%	MAX 1.0	D-1796
Calorific Value ( Higher)	MJ/KG	MIN 41.7	Calculated