Admin Table of Contents
How do you convert API to specific gravity?
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. Divide 141.5 by (131.5 + API gravity) to obtain the specific gravity of the oil.
Does API gravity change with temperature?
API gravity increases with increasing temperature, while specific gravity decreases with increasing temperature. This means that the volume of a petroleum liquid increases with increasing temperature, and that a density number always must be given with the measurement temperature.
What is the specific gravity of 38 degree API oil?
API Gravity to Specific Gravity and Density Chart:
| Degree API. | Specific Gravity. | Density (kg/m3). |
|---|---|---|
| 35 | 0,850 | 849,850 |
| 36 | 0,845 | 844,776 |
| 37 | 0,840 | 839,763 |
| 38 | 0,835 | 834,808 |
What is the difference between API gravity 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.
Is API gravity the same as specific gravity?
When specific gravity is high?
Specific gravity results above 1.010 can indicate mild dehydration. The higher the number, the more dehydrated you may be. High urine specific gravity can indicate that you have extra substances in your urine, such as: glucose.
What is the normal range of specific gravity?
In general, normal values for specific gravity are as follows: 1.005 to 1.030 (normal specific gravity) 1.001 after drinking excessive amounts of water. More than 1.030 after avoiding fluids.
Why is API gravity used instead of specific gravity?
What is the API gravity of petroleum?
API : Degrees API Gravity. The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks. Degree API. Specific Gravity.
What is the relation between specific gravity and specificdensity of API?
Density is a temperature depedent property. API gravity increases with increasing temperature, while specific gravity decreases with increasing temperature. See correlations at Density of crude oil as function of temperature. This means that the volume of a petroleum liquid increases with increasing temperature,…
What is the API gravity of a hydrometer?
API gravity is graduated in degrees on a hydrometer instrument and was designed so that most values would fall between 10° and 70° API gravity. The arbitrary formula used to obtain this effect is presented in the following paragraphs.
How do you calculate the gravity of oil?
If you know the specific gravity of oil, you can use this equation to calculate its API Gravity: 141.5 ÷ Specific Gravity – 131.5 = API Gravity API gravity can also tell us whether the fluid will float or sink in the water. If API gravity is less than 10 it will sink in water; higher than 10 and it will float.