How do you calculate API?
The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5.
How do you calculate the API gravity of crude 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 API gravity of water?
… petroleum industry, however, uses the American Petroleum Institute (API) gravity scale, in which pure water has been arbitrarily assigned an API gravity of 10°.
What is the value of an API?
We see three primary sources of value in API programs: Simplifying the back end. APIs can connect internal systems relatively simply, allowing access to data—even when it’s buried deep within legacy IT systems—quickly and repeatedly. This can allows IT to simplify and automate tasks, and speed development.
What is API and 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 SG of crude oil?
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 |
What does API score mean?
Brief Explanation: Based on the teacher’s self-assessment, API scores are proposed for (a) teaching related activities; (b) domain knowledge; (c) participation in examination and evaluation; (d) contribution to innovative teaching, new courses etc. The minimum API score required by teachers from this category is 75.
How do you convert specific gravity to API gravity?
How to estimate API gravity?
- Divide 141.5 by the specific gravity of the liquid.
- Subtract 131.5 from the resultant to obtain the API gravity.
What does API and SAE mean?
SAE is the Society Of Automotive Engineers (USA). The SAE rating of an oil is a measure of its viscosity (eg 20W50). API is the American Petroleum Institute. The API rating of an engine oil covers the performance rating of the oil (e.g. SM for petrol, CF for diesel).
What is the API of diesel fuel?
The API gravity at 60°F (15.6°C) for No. 2 diesel fuel is between 30 and 42. The specific gravity, at 60/60°F, and the density, at 15.6°C, are between 0.88 and 0.82.
What is SG fuel?
Specific gravities for common fluids like acetone, alcohol, turpentine, oil and more. Sponsored Links. Specific Gravity – SG – is a dimensionless unit defined for liquids as “the ratio of the density of the substance to the density of water at a specified temperature”. For gases the Specific Gravity is related to air.
What is specific gravity of oil?
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. In the oil industry, specific gravity is a common quality specification for finished products.