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• ### API Gravity | FSC 432: Petroleum Refining

API Gravity. Density is defined as mass per unit volume of a fluid. The density of crude oil and liquid hydrocarbons is usually reported in terms of specific gravity (SG) or relative density, defined as the density of the liquid material at 60°F (15.6°C) divided by the density of liquid water at 60°F.

• ### Urine specific gravity test: Procedure and results

A urine specific gravity test shows the density of urine compared with water. It can help doctors diagnose a variety of conditions, including dehydration, kidney problems, and a rare type of diabetes.

• ### Air Density and Specific Weight Table, Equations …

Air Density and Specific Weight Equations and Calculator - The density of air, ρ (Greek: rho) (air density), is the mass per unit volume of Earth's atmosphere. Air density, like air pressure, decreases with increasing altitude. It also changes with variation in temperature or humidity.

• ### Produced water density - PetroWiki

Measuring formation water density. In the past, density in metric units (g/cm 3) was considered equal to specific gravity; therefore, for most engineering calculations, density and specific gravity were interchangeable in most of the older designs. However, process simulation software used in modern facility design uses the true density or specific gravity of the water to avoid significant ...

• ### specific gravity: Relationship Between Specific …

Because the density of water is very nearly 1 g/cm 3, the density of any substance in g/cm 3 is nearly the same numerically as its specific gravity relative to water. In the English system of units the density of water is about 62.4 lb/ft 3, so the near equality between specific gravity and density is not preserved in this system. Specific ...

• ### Theoretical Maximum Specific Gravity - Pavement Interactive

Overview. The theoretical maximum specific gravity (Gmm) of a HMA mixture is the specific gravity excluding air voids. Thus, theoretically, if all the air voids were eliminated from an HMA sample, the combined specific gravity of the remaining aggregate and asphalt binder would be the theoretical maximum specific gravity. Theoretical maximum specific gravity can be multiplied by the density …

• ### Calculation of Specific Gravity | PTCB Practice Test …

Calculation of Specific Gravity. Specific Gravity = ratio of the density (mass of a unit volume) of a substance to the density (mass of the same unit volume) of a reference substance. Formula: Specific Gravity = Weight of substance / Weight of an equal volume of water. Example: What is the specific gravity of a substance that weights 75 g and occupies a volume of 150 mL? SG = Weight of ...

• ### Salinity & specific gravity - saltwater, reef aquarium

The easiest and most common instrument to measure the salt concentration in aquaria is the hydrometer. A hydrometer is a device that measures the density or specific gravity of a liquid. The more salt in the water the more dense it is. It is important to understand that salinity and specific gravity are …

• ### Urine Specific Gravity Test - Health Hearty

Urine Specific Gravity Range. The specific gravity of urine is expressed or measured in grams/milliliter (g/ml). The specific gravity normal range is often found to vary. However, 1.010 to 1.035 g/ml or 1.005 to 1.030 g/ml are considered as the normal ranges of this test. The following are the causes that can increase or decrease the ...

• ### Specific Gravity Of Cement Test - How To Calculate ...

Specific gravity can be defined as the density of any substance to the density of other reference substance at a specified temperature. For example, to determine the specific gravity of cement will consider water as reference substance. In simple words, the specific gravity determines whether the material will sink or float in water. Every material has its own specific gravity and the value ...

• ### Water Density Calculator - CSGNetwork

Pressure is a large factor in water density in the ocean. Use this calculator to account for pressure. In our calculator, enter the temperature in degrees C or F (click anywhere outside of any of the fields for the conversion), and the salinity in mg/L or the equivalent of PPM. Then click on the Calculate button and the water density is calculated and displayed, based on your input data. This ...

• ### Specific gravity - Digitalfire

Specific gravity is very important in the production of casting slips where low-as-possible (or, more accurately, low-as-practical) water content is needed. Hobbyists and potters typically target around 1.75 wheres in industry 1.8 or higher is needed (especially in sanitaryware). This is achieved using the

• ### Urine specific gravity test: Procedure and results

6/13/2018· A urine specific gravity test shows the density of urine compared with water. It can help doctors diagnose a variety of conditions, including dehydration, …

• ### Difference Between Density and Relative Density ...

Summary of Density vs. Relative Density. Density is by definition the ratio of the mass and volume of a body. SI dimension of density is kilogram per cubic meter – kg / m 3.Density is a constant characteristic of a body, but since it depends on the temperature, density is commonly declared together with the temperature at which it is determined.

• ### Gas Specific Gravity and Ideal Gas Law Calculators

Units in gas specific gravity and ideal gas calculators: atm=atmosphere, C=Celsius, cm=centimeter, F=Fahrenheit, ft=foot, g=gram, kg=kilogram, m=meter, mm=millimeter, N=Newton, Pa=Pascal, psi=pound per square inch. Equations for Gas Specific Gravity and Molecular Weight Conversion. S = M / M air, where S=gas specific gravity, M=gas molecular weight, M air =28.96443 g/mole (molecular weight of ...

• ### Petropedia - What is Specific Gravity Unit? - …

Specific Gravity Unit, also known as specific gravity is the density of a unit object divided by the density of a reference substance. In usual cases, the reference substance used is water, which is considered to have a density of 1 gm/ml or 1 gram per cubic cm. The specific gravity unit of any substance is a dimensionless quantity and has no units.

• ### Understanding Your Data Sheet: Density & Specific …

Specific Gravity = (Weight A / Weight B) Density = (Weight A / Weight B) * 0.9976 g/cm 3, where 0.9976 g/cm 3 is equal to the density of distilled water at 23°C. The tests for density and SG are particularly significant in the custom sheet industry because plastic sheet is sold on a cost per pound basis. The lower the density or SG of a ...

• ### aqueous solution - Why is the specific gravity of …

A specific gravity of 1.0046 is only about 0.5% more that 1.000 which is pretty close to the density of pure water at body temperature. So if medical saline is 0.9% saline, is it really 0.90000000% or is it maybe really 0.904%? So in a lot of problems we'd assume that 9 grams of salt and 1000 ml of water give "about" 1000 ml of solution, but it isn't absolutely true.

• ### Coriolis Flow Meters for Mass, Volume & Density ...

Micro Motion offers a variety of software options to best fit your application needs. Petroleum Measurement delivers time-saving calculations including API gravity, gross volume, and flow-weighted average observed gravity; Batching offers integrated single and dual stage batch control based on totalizer values; Concentration provides concentration measurement based on industry-specific or ...

• ### Difference Between Density and Specific Gravity ...

However, because the density of pure water is so close to 1 (0.9976 grams per cubic centimeter), specific gravity and density are nearly the same value so long as the density is given in g/cc. Density is very slightly less than specific gravity. Interesting Articles. Expansionary vs. Contractionary Monetary Policy. May 16,2020 . The History of Kitchen Appliance Inventions. May 16,2020 ...

• ### Density of Hydrogen Peroxide Solutions | USP Technologies

USP Technologies is a leading provider of hydrogen peroxide and peroxide based, performance-driven, full-service environmental treatment programs to help purify water, wastewater, soil and air. We specialize in turn-key solutions for municipal wastewater and drinking water treatment; refinery, gas, oil and petrochemical applications; industrial ...

• ### aqueous solution - Why is the specific gravity of …

A specific gravity of 1.0046 is only about 0.5% more that 1.000 which is pretty close to the density of pure water at body temperature. So if medical saline is 0.9% saline, is it really 0.90000000% or is it maybe really 0.904%? So in a lot of problems we'd assume that 9 grams of salt and 1000 ml of water give "about" 1000 ml of solution, but it isn't absolutely true.

• ### specific gravity | Formula, Units, & Equation | …

Specific gravity, ratio of the density of a substance to that of a standard substance. Solids and liquids are often compared with water at 4 C, which has a density of 1.0 kg per liter. Gases are often compared with dry air, having a density of 1.29 grams per liter (1.29 ounces per …

• ### Determination of Density, Particle Density and Specific ...

Particle density or specific gravity is a measure of the actual particles which make up the soil mass and is defined as the ratio of the mass of the particles to the mass of the water they displace. A knowledge of the particle density is essential in relation to other soil tests.