What should be Specific gravity at 15°C if observed SG is 0.834 and temperature 32°c of HSD

To calculate the specific gravity at 15°C for HSD (High Speed Diesel) fuel when the observed specific gravity is 0.834 at 32°C, we can use the formula:

SG1 = SG2 * (1 - α * (T1 - T2))

Where:
SG1 = Specific gravity at 15°C
SG2 = Observed specific gravity at 32°C (0.834)
α = Temperature coefficient for HSD fuel (0.0007)
T1 = Final temperature (15°C)
T2 = Initial temperature (32°C)

Plugging in the values:

SG1 = 0.834 * (1 - 0.0007 * (15 - 32))
SG1 = 0.834 * (1 + 0.0119)
SG1 = 0.834 * 1.0119
SG1 = 0.8433

Therefore, the specific gravity of HSD fuel at 15°C should be approximately 0.8433.