Laboratory Hydrometer

November 1, 2021

Laboratory instruments have been developed to be a very important tool in science. Every scientist, doctor, bioanalyst and professional in the area of ​​science and health have used them achieving great advances, with excellent results. The laboratory hydrometer is one of those elements that every scientist must know.

This practical instrument can be found in laboratories of different biological, chemical and industrial specialties. With it measurements are made in speed, weight and force of liquids. Get to know it and make the most of it.

What is a Laboratory Hydrometer?

The hydrometer is a measuring tool whose name comes from the prefix hydro which means water. This wonderful laboratory item has the ability to measure liquids , it is quite simple but it is still important. It has been used in different areas such as: civil engineering, road safety, among others.

The purpose of this instrument is to measure the force and velocity of any liquid . It is made of glass and is composed of a stem and a bulb, located at the top, inside which a small amount of lead or mercury is located. These elements are the ones that will allow the measurement to be carried out through their behavior when performing the test.

What is the Laboratory Hydrometer for?

The Laboratory Hydrometer is used to measure the weight, force and velocity of a liquid , providing accurate and reliable data. It is a sophisticated and delicate element, since normally the material with which it is made is glass.

Professionals in the area of ​​science and health generally use it, depending on its typology, to measure the behavior of liquids. This is used to make a concise measurement of the separation of molecules in a certain liquid.

Its existence proved that it was possible to measure even the density of any liquid, and others to measure its speed, weight and force.

How does the Laboratory Hydrometer work?

The laboratory hydrometer is very easy to use. For this, test tubes capable of storing liquid for a certain time are needed. After this, the liquid to be analyzed is added, the size of the sample can be large or small, there are some samples that cannot be analyzed, so you must be careful about the type of sample you place.

When checking the state of the same, the hydrometer is introduced to analyze the variations of the liquid. Then the temperature of the hydrometer is checked, and thereafter, every five minutes you should evaluate its temperature. Making the corresponding annotations to verify the variations of the liquid.

Uses of the Laboratory Hydrometer

This instrument is used to measure sulfuric acid levels. You can adjust the temperature of this acid and see its composition accurately.

This instrument is used on a daily basis in the industrial area, being of vital importance in the production of beverages and food. Wines, alcoholic beverages and dairy products, in their manufacturing process, are analyzed by a hydrometer.

For the production of beverages, a specific density is needed, which is why the use of a laboratory hydrometer is so important in its realization, because it gives the exact precision at a certain moment of the product.

This instrument is so common in this area that they have adopted instruments for specific use with the characteristics of the hydrometer used.

Types of Laboratory Hydrometers

As for the types of hydrometers, there is a fairly wide range at an industrial level and also in other areas such as civil engineering, as well as in the health sector.

Next I will present the different types of hydrometers that you need to know:

  • ASTM Hydrometer

This hydrometer is used to measure the gravity of liquids.

  • Hydrometer PCE-555

It is a pocket digital hydrometer used to measure ambient humidity and temperature, it offers the dew temperature. This tool arose from the need to perform fast humidity and temperature measurements. By giving values ​​such as wet bulb temperature, in the food production area, it is used to prevent the formation of fungi.

This hydrometer is also used in civil engineering to measure condensation on walls. It has a humidity sensor, capable of measuring the humidity that surrounds it, without the need to introduce it into any liquid.

  • Dairy hydrometer or lactometer

This is a hydrometer adapted and specialized to measure the amount of fat that milk has in its liquid state.

  • Search Hydrometers

The search hydrometer does not have a thermometer and has a scale division of 0.005g / cm3. It refers to a temperature of 20ºC and its dimension is approximately 300 mm in length.

Although they can vary from scale division, their temperature reference does not vary, but it does tend to vary its dimension in length, depending on its design.

  • Hidrómetro Standard

Some have thermometers, others do not, this depends on what you need. Those that do not have thermometers keep the temperature of 20ºC as a reference and those that contain a thermometer have a measuring range of 0ºC to 30ºC. Its length varies depending on whether or not they have the thermometer.

  • Alcohol hydrometer or breathalyzer

This hydrometer is used by police forces to measure the amount of alcohol that an individual has in their body. It is also a hydrometer that has been adapted like the lactometer but, unlike this, it has been created to measure the amount of alcohol that is needed for the production of alcoholic beverages.

  • Sugar Hydrometer or Saccharimeter:

This type of hydrometer was designed to measure the amount of sugar that the blood can contain and also to measure the amount of sugar in a certain product at an industrial level.

As you see, there is a range of hydrometers with which you will learn to become familiar, according to the area where you operate. This instrument is of great importance for many sectors and in particular great technological and scientific advances have been achieved with the simple use of a hydrometer.

Laboratory Hydrometer Features

The Hydrometer has been designed mostly from a fragile material such as glass, although sometimes you can find it made of glass.

Its shape is similar to a lightbulb, having a higher stem on its surface and a lower stem on its lower part.

They contain an amount of lead or mercury in their bulb that gives it the ability to float when introduced into the liquid to be measured. On its stem you will see the scale where each density is indicated.

Importance of the Laboratory Hydrometer

The hydrometer is not only a useful instrument, but it is also of great importance in industrial sectors, science, health, civil engineering and even in aquariums. Did you know that in aquariums this simple element is used to measure the amount of salt it may have Water? Only it is known as a salimeter.

It is also of vital importance when treating drinking water, since this instrument is in charge of controlling the quality and density of the water.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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