What are the various specifications of D2 diesel?

D2 diesel is a type of diesel fuel commonly used in marine and industrial applications, characterized by its specific properties and specifications. It typically has a density of about 0.81 to 0.87 kg/L and a viscosity range of 1.5 to 4.5 mm²/s at 40°C. D2 diesel must meet certain cetane number requirements, usually around 40 to 55, to ensure good ignition quality. Additionally, it generally contains a maximum sulfur content of 0.05% for environmental compliance, depending on regional regulations.