What instrument is used to measure specific gravity of urine?
The urinometer, a type of hydrometer, was used for measuring the specific gravity of urine. ‘Specific gravity’ is a function of the number, density and weight of the solute particles present in the urine, and is used as a measure of the concentrating power of the kidney.
Which instrument measures specific gravity of milk?
A hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy. They are typically calibrated and graduated with one or more scales such as specific gravity.
What are the two tools used to measure specific gravity?
The Baumé hydrometer, named for the French chemist Antoine Baumé, is calibrated to measure specific gravity on evenly spaced scales; one scale is for liquids heavier than water, and the other is for liquids lighter than water.
What is specific gravity used to measure?
The term “Specific Gravity” (SG) is used to define the weight or density of a liquid as compared to the density of an equal volume of water at a specified temperature. The temperature used for measurement is usually 39.2oF (4oC), because this temperature allows water to assume its maximum density.
What does a specific gravity of 1.030 mean?
Ideally, urine specific gravity results will fall between 1.002 and 1.030 if your kidneys are functioning normally. Specific gravity results above 1.010 can indicate mild dehydration. The higher the number, the more dehydrated you may be.
What instrument measures humidity?
The instrument used to measure relative humidity is the hygrometer. A variety of different digital and analog models exist, but you can build a simple version with your class. Known as the sling psychrometer, this hygrometer takes a measurement with a “wet bulb” thermometer and a “dry bulb” thermometer simultaneously.
How can we measure specific gravity of milk?
Lactometer – this is a hydrometer (a device for measuring specific gravity) adapted to the normal range of the specific gravity of milk. It is usually calibrated to read in lactometer degrees (L) rather than specific gravity per se….Specific gravity of milk.
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How do you test specific gravity?
The normal method of determining specific gravity is to weigh the specimen dry (DW), then to suspend the specimen in water on a string, and to measure the weight pulling on the string (WW) (specimen weight suspended in water). Then you subtract WW from DW, and divide the difference into DW.
How do you read specific gravity?
The most common scale on hydrometers is “specific gravity.” This is the ratio of the liquid’s density to the density of water. Pure water should give a reading of 1.000. A higher reading means the liquid is denser (heavier) than water, and a lower reading means it is lighter.
Why do we calculate specific gravity?
Knowing the specific gravity will allow determination of a fluid’s characteristics compared to a standard, usually water, at a specified temperature. This will allow the user to determine if the test fluid will be heavier or lighter than the standard fluid.
What do u mean by specific gravity?
Specific gravity, also called relative density, ratio of the density of a substance to that of a standard substance. If a substance has specific gravity less than that of a fluid, it will float on that fluid: helium-filled balloons will rise in air, oil will form a slick on water, and lead will float on mercury.