Table of Contents
What is the specific weight of petrol?
Petrol weighs 0.7489 gram per cubic centimeter or 748.9 kilogram per cubic meter, i.e. density of petrol is equal to 748.9 kg/m³.
How do you calculate specific gravity of petrol?
Using the API to Specific Gravity Conversion formula, the oil specific gravity is calculated: SG(oil) = 141.5 / (°API+131.5) = 141.5 / (35+131.5) = 0.845.
How do I calculate specific gravity?
The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water.
Are specific gravity and density the same?
Density is defined as mass per unit volume. Specific gravity is the ratio of a material’s density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m-3). It is therefore a relative quantity with no units.
What does API mean in oil and gas?
American Petroleum Institute
The API (American Petroleum Institute) number is a unique number assigned to every oil and gas well. It is used by agencies to identify and track oil and gas wells.
How do you calculate the gravity of oil?
The official formula used to derive the gravity of petroleum liquids from the specific gravity (SG), as follows:
- API gravity = 141.5/SG – 131.5.
- RD at 60oF = 141.5 / (API gravity + 131.5)
- Barrels of crude oil per metric ton = 1 / [141.5 / (API gravity + 131.5) x 0.159]
What is specific gravity of oil?
Specific gravity is calculated as the ratio of the density of a liquid to the density of water. Liquids with a density lower than water, which includes most crude oil grades and petroleum products, will have a specific gravity between 0.0 and 1.0.
Is specific gravity g mL?
The specific gravity of an object is the ratio between the density of an object to a reference liquid. Usually, our reference liquid is water, which has a density of 1 g/mL or 1 g/cm^3.
What is API specific gravity?
A specific gravity scale developed by the American Petroleum Institute (API) for measuring the relative density of various petroleum liquids, expressed in degrees. API gravity is gradated in degrees on a hydrometer instrument and was designed so that most values would fall between 10° and 70° API gravity.
Why API gravity is used instead of specific gravity?
API gravity is thus an inverse measure of a petroleum liquid’s density relative to that of water (also known as specific gravity). It is used to compare densities of petroleum liquids. For example, if one petroleum liquid is less dense than another, it has a greater API gravity.
What is specific gravity of oils?
Specific Gravity (SG) is the ratio of the object’s density to that of water. Since water has a specific gravity of 1 at sea level, liquids and substances with a specific gravity lower than 1 will float in water….Specific Gravity Resource.
| Liquid | SG @ 60°F / 15.6°C |
|---|---|
| Beer | 1.01 |
| Carbon Tetrachloride CCl4 | 1.59 |
| Corn Oil | 0.924 |
| Crude Oil | 0.79 – 0.86 |