Specific Gravity


Plastic
Storage Tanks are made ratings of the specific gravity a
tank can hold. A tank with a rating of 1.5 specific
gravity (SG) should not be put into service holding a
liquid that weighs 1.8 SG. Our
Double Wall Chemical
Storage Tanks are rated at
1.9 SG or above. We can even
make tanks with higher ratings, such as
2.2 SG, for
specific applications. 
... 
The
specific gravity of a liquid tells you how much more or
less dense the liquid is than water. Water has a
specific gravity of 1.00. A liquid that is more dense
than water, has specific gravity is greater than 1. A
liquid less dense than water has a specific gravity is
less than 1. 

To
calculate the specific gravity of a liquid, take the
weight of that liquid and divide it by the weight of
water. The weight of water will vary slightly based on
temperature and pressure but for our purposes you can
figure it at 8.34 pounds per gallon. 

The
specific gravity of Sulfuric Acid varies based on the
concentration and the temperature. The specific gravity
of a 97% solution of Sulfuric Acid at 60 degrees F. is
1.84. 