Verify the grain specific gravity
In a specific gravity test, the weight of the dry soil taken is 0.66 N. The weight of the pyknometer filled with this soil and water is 6.756 N. The weight of the pyknometer full of water is 6.3395 N. The temperature of the test is 30°C. Verify the grain specific gravity, taking the specific gravity of water at 30°C as 0.99568.