FUEL

Property	Unit	IFO 180 (CST 180)	IFO 380 (CST 380)	Test Method
Kinematic Viscosity @50°C	cSt (mm²/s)	180 Max	380 Max	ISO 3104 / ASTM D445
Density @15°C	kg/m³	991 Max	991 Max	ASTM D1298 / ISO 3675
Sulfur Content (HSFO)	% m/m	3.50 Max	3.50 Max	ISO 8754 / ASTM D4294
Flash Point (Closed Cup)	°C	60 Min	60 Min	ASTM D93 / ISO 2719
Pour Point	°C	30 Max	30 Max	ASTM D97
Carbon Residue (Micro)	% m/m	18 Max	18 Max	ASTM D189 / ISO 10370
Aluminum + Silicon (Cat Fines)	mg/kg	60 Max	60 Max	ISO 10478 / IP 501

HSFO (High Sulphur Fuel Oil) – ISO 8217:2017

Property	Unit	Propane (C₃H₈)	Butane (C₄H₁₀)	Test Method
Purity	wt.%	98.0 Min	98.0 Min	ASTM D2163
Vapor Pressure @100°F	psig	200 Max	70 Max	ASTM D2598
Total Sulfur	ppm wt.	30 Max	30 Max	ASTM D6667
Copper Corrosion	—	1 Max	1 Max	ASTM D1838