The sae grading system indicates oil viscosity in simple numbers ranging from the thin oil 10 to the very thick oil 140 or above. Oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. Sampling from the bottom would provide the most water content in the. Use this oil conversion tool to convert between different units of weight and volume. Mass, weight, density or specific gravity of liquids. Volume to weight, weight to volume and cost conversions for soybean oil with temperature in the range of 10c 50f to 140c 284f. An introduction to density, specific gravity and specific weight formulas with. Specific gravity of diesel fuel oil is recorded at 15. The society of automotive engineers sae assigns a viscosity number, or weight, to oil based on its flow at 210 degrees f, which is roughly the standard operating temperature for most motors. Density, specific weight and specific gravity an introduction to density, specific gravity and specific weight formulas with examples. Usually this parameters is not regulated and is within 0. Density and specific weight of a fluid are related as. And just like kilometers and miles, neither is more accurate than the other. Your manufacturer will specify the oil change interval and oil type and weight for your specific vehicle.
Weight of sunflower oil by temperature sunflower oil. The term specific gravity means density in comparison to that of water. Just like sunflower oil, it is considered a semidrying oil and has a variety of industrial uses. Once you know the density of that solid object or a specific liquid, you can calculate its mass per unit volume, and from that mass, you can get the weight. Specific gravity sg is a dimensionless unit defined for liquids as the ratio of. This information can be used to tell whether lube oil will float or sink if dropped in water buoyancy. Oil viscosity and weight explained with chart to pick the. Feb 14, 2019 how to pick the right motor oil for your car. Heavier weight, or higher grade oil is more viscous and therefore thicker as it flows between the gears. Read moreoil viscosity and weight explained with chart to pick the right one. However, you asked for weight, which we remember is mass x. The terms specific weight and specific density are also sometimes used to express this ratio. Specific gravity fluids physics khan academy youtube.
The most common type of diesel fuel is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel. None of the answers need to be in a certain unit either. The specific gravity of lube oil is the ratio of the density of lube oil to that of a reference substance usually water. Specific gravities for some common fluids like acetone, alcohol, turpentine, oil. First, narrow the options down by choosing the closestrelated category to your question. How to calculate weight from specific gravity quora. The specific weight, also known as the unit weight, is the weight per unit volume of a material. Api gravity calculator crude oil api gravity chart. This correction was then applied to the rest of the samples, for which only the hydrometer measurements were performed.
Soy oil, obtained by solvent extraction, is the dominant vegetable oil worldwide. In most calculations the specific gravity of the gas is always referred to in terms of standard conditions of temperature and pressure and therefore is always given by equation 32 once the molecular weight of the gas is known. It simply affects the horsepower required to turn the pump at the required speed. For example, if the specific gravity of water is 1. Specific gravity resource application note smd fluid. If the oil is heated, its specific weight decreases, and vise versa when the oil. Or weight of a fluid per unit volume is called its specific weight. The specific gravity of olive oil is the ratio of the density of olive oil to that of a reference substance usually water. Densities were calculated by multiplying the specific gravities by water density 0. Explain the significance of the value of the specific gravity. The specific gravity stands for a dimensionless unit that defines the ratio of density of a substance to the density of water.
They both can be used to measure the gravity of a fluid, such as hydraulic oil, in the same way that miles or kilometers can both be used to measure distance. Lets say you have 1 litre of cooking oil, thats cm3. 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. Specific gravity sg is a dimensionless unit defined for liquids as the ratio of the. The terms specific gravity, and less often specific weight, are also used for relative density. The difference in weights is divided by the weight of an equal volume of water to give the specific gravity of the liquid. This is because the average gallon of crude oil weighs 7. A commonly used value is the specific weight of water on earth at 4c, which is 9. The bottle is weighed, filled with the liquid whose specific gravity is to be found, and weighed again.
Aug 23, 2016 api gravity to specific gravity and density chart if you need need to convert other value use our online api gravity calculator on the top. Density of fuel oils as function of temperature variations in fuel oils density are. Difference between specific gravity and specific weight. A commonly used value is the specific weight of water on earth at.
Motor oil, engine oil, or engine lubricant is any of various substances comprising base oils enhanced with various additives, particularly antiwear additive in addition to detergents, dispersants and, for multigrade oils, viscosity index improvers. Nov 02, 2017 oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. Oil viscosity is graded by measuring the time it takes for a standard amount of oil to flow. In this video david explains what specific gravity means. It depends on the densityspecific gravity of the fuel. Soybean oil weight to volume at different temperatures. The weight is the gravitational force that pulls any object to earth. Other information view gas fuel properties view nox measurement view conversion tables property units diesel oil gas oil light fuel oil lfo medium fuel oil mfo heavy fuel oil hfo composition. If the insulating fluid specific gravity is less than 1, sample from the bottom. Specific gravity and api gravity are both measurements of density. Therefore it is important to select the proper float switch and float for your application. It may be related to the molecular weight by the following equation.
Apr 23, 2017 using ushaped tube to determine the specific weight of oil. Api gravity to specific gravity and density chart if you need need to convert other value use our online api gravity calculator on the top. So to get the volume, pour the oil into a graduated cylinder or measuring cup same. Specific weight, density and gravity of fluid 1 youtube. Flush 24 quarts of waste oil through the sample valve before collecting the sample. Specific gravity sp gr measures the ratio of density of the substance to the density of water in a given temperature, i. If the liquid you are comparing will float on this water it has a specific gravity of less than one 1. Types of motor oil how to pick the right engine oil. Density, specific weight and specific gravity an introduction to density, specific gravity and specific weight formulas with. Recall that weight is determined by multiply the mass of an object by the gravitational constant g. Your cars owners manual will list the recommended oil weight, whether thats a standard like 10w30 or something more unusual. The average barrel of domestic crude oil weighs 302. Using ushaped tube to determine the specific weight of oil.
There are important differences between density, specific weight and specific gravity. Mass, specific gravity or density, of over 150 different types of liquid. A rule of thumb is 1 gram of cannabis flower infused 100mg. Specific gravity of oil calculator convert api to specific. Oil viscosity is the parameter that plays an important role in lubrication.
The terms jojoba oil and jojoba wax are often used interchangeably because the wax visually appears to be a mobile oil, but as a wax it is composed almost entirely 97% of monoesters of longchain fatty acids and alcohols, accompanied by only a tiny fraction of triglyceride. Specific gravity of transformer oil, where to draw your sample. The specific weight considers how the gravitation constant can effect the weight of a fluid. Multiply the density by the acceleration of gravity 9. Aug 27, 2015 the terms specific weight and specific density are also sometimes used to express this ratio.
A list of some common oil density approximations is provided below. It changes with temperature, shear rate, pressure, and thickness. Specific gravity sg is the ratio of the objects density to that of water. Jan 24, 2015 if the insulating fluid specific gravity is less than 1, sample from the bottom.
The oil makes up approximately 50% of the jojoba seed by weight. One thing i noticed is that in 5w30 and 5w20, the regular m1 has a significantly lower specific gravity what m1 calls density than ep oils of the same weight, and also lower than competitors, and also lower than the other regular m1 oils in different weights. In physics, the weight of the substance differs from its mass. The importance of specific gravity dynamix agitators. Most of the production is consumed as salad oil, cooking oil, and margarine. For gases the specific gravity is related to air specific gravity for common fluids are indicated in the table below.
Specific gravity direct ratio of any liquids weight to the weight of water at 62 degrees f. Please note that this type of conversion requires a substance density figure. Dec 17, 2019 oil viscosity is the parameter that plays an important role in lubrication. Specific weight weight density the specific weight of a fluid is designated by the greek symbol gamma, and is generally defined as the weight per unit volume. I have been trying to figure out what is the difference between regular m1 and m1 ep extended protection. The specific gravity of all other materials are compared to water as a fraction heavier or lighter density. The last characteristic of a fluid that is dependent on density is the specific weight of a fluid. Depending on the type of gears and the operation conditions the gear oil will need to possess different physical properties to adequately lubricate and protect the gears. The terms specific gravity, and less often specific weight. Say youve got one liter of a liquid with a specific gravity of. Fuels densities and specific volume engineering toolbox.
Jun 30, 2019 the specific gravity of lube oil is the ratio of the density of lube oil to that of a reference substance usually water. If you have an oil leak or your engine burns oil, it may be necessary to add some oil between oil changes. Most of the time the flowe is not tested but this is a. Use the online api to specific gravity converter to find the sp gr of an oil by providing the api gravity. Densities and specific volumes of some common fuels anthracite, butane, gasoil, diesel, coke, oil, wood and more.
Specific gravity specific gravity is simply the ratio of the specific weight of a given liquid to the specific weight of water at 4 c. What is density, specific weight, specific volume and. The density of water is kgcubic meters at 4 celsius. The specific gravity of diesel fuel oil varies between 0. Gear oil is used as a lubricant between the moving parts of a gear system so that the gears mesh and turn smoothly. Fluid mechanicsfluid properties wikibooks, open books.
We can calculate the formula d x v density by volume to find mass. And, knowing that, we could use it to find the weight of another volume of ethanol by converting. The specific gravity of a liquid does not alter the centrifugal pump curve at all. Specific gravity of common liquids and fluids like alcohol, oils, benzene, water and. Whether you have questions pertaining to motor oil performance, synthetic oils or how to recycle your used oil, you can get the answers youre looking for below. Check out for more free engineering tutorials and math lessons. Density, specific weight and specific gravity engineering toolbox. Motor oil vehicle specific 2015 gmc terrain oreilly. Follow these links to learn about the differences between them. Motor oil vehicle specific 1999 chevrolet silverado 1500. Regular oil changes are necessary to remove oil that has collected contaminants and replace it with fresh oil.
How to convert specific gravity in weight sciencing. Density, specific weight and specific gravity an introduction to density. Jan 11, 2018 or, alternately, if we knew the specific gravity of ethanol to water, and knew the weight of one gallon of water, we could use this last formula to find the weight of one gallon of ethanol. Sunflower oil volume to weight at different temperatures. What is the weight specific gravity of oil answers. They are many common crude types like west texas, brent api gravity is a measure of how light or heavy the crude oil compared to water.
Specific weight of transformer oil is the ratio of its weight at 20. Specific weight is defined as the weight of a unit volume of the material. Olive oil yield the olive oil yield refers to the volume of oil per weight of olives. The concept of the specific weight will also be presented. He also shows how to calculate the value for specific gravity and use it to determine the. Calculate how much of this gravel is required to attain a specific depth in a cylindrical, quarter cylindrical or in a rectangular shaped aquarium or pond weight to. Basically, the specific weight represents weight per unit volume. Specific gravity of diesel fuel oil is a comparison of its density with that of pure water. It is also used in a variety of prepared foods such as frozen desserts and coffee whiteners. If it sinks into the fresh water the specific gravity is more than one. Weight is defined as the force on a mass due to the gravitational field of another object. For example, acetic acid has a specific gravity sg of 1.
Specific gravity and density oil and gas separator. Specific gravity equals the density of the solid or liquid divided by the density of water at a specific temperature. Light grade oil is ideal for small, fast, polished gears under a light load. If the oil is heated, its specific weight decreases, and vise versa when the oil is cold. In relationship to liquids, the term specific gravity is used to describe the weight or density of a liquid compared to an equal volume of fresh water at 4c 39 f. Specific weight is a similar sounding word of specific gravity but these are two very different quantities. 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. Motor oil is used for lubrication of internal combustion engines.
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