Specific gravity is the ratio between the density of the material to the density of water at 4 degrees celcius (density of water at this temperature is 1000 kg/m^3)
1.26 = density of glycerin / 1000 density of glycerin = 1260 kg/m^3
1 Kg is equivalent to 2.2 lbs, therefore: 0.75 lbs = 0.34 kg
density = mass/volume 1260 = 0.34/volume volume = 0.34/1260 = 2.857 x 10^-4 m^3
now, 1 m^3 is equivalent to 1000 liters 2.857 x 10^-4 m^3 = 0.2857 liters
one liter is equivalent to 1000 ml therefore, 0.2857 l = 285.7 ml
