Lab Instruments & Equipment:
Several types of equipment are required for any functional laboratory to operate properly. Be it a school, research, or a medical laboratory, special equipment is required. Laboratory Equipments can be classified into a lot of categories.
The most common laboratory apparatus are:
A microscope is a popular piece of lab equipment used to observe things that are too small and are not visible to the naked human eye. There are many different types of microscopes. A light microscope uses lights and a series of magnifying lenses to observe a tiny specimen. On the other hand, an electron microscope uses a beam of electrons to form a magnified image and thus, is more powerful.
This is a common type of lab vessel used to hold and mix liquid substances. A test tube is finger-like and open on one end. Test tubes come in many different sizes, but the standard size is 18 x 150 mm.
A watch glass is a popular type of chemistry lab equipment. It is a concave piece of glass normally used to hold solids, evaporate liquids and heat small quantities of a substance. 4. Crucible This apparatus is a small receptacle usually made using porcelain. Not all laboratory glassware is appropriate for heating as they can get damaged or break. However, a crucible is heat-resistant and is ideal for containing compounds when heated to high temperatures. It has a lid that is meant to contain particles of smoke.
Volumetric flask is a type of glassware calibrated to hold exact volumes of a liquid at a precise temperature. In chemistry, it is used to prepare standard solutions and for accurate dilutions.
Beakers are used to hold, heat, or mix substances. Beakers are cylindrical with a flat base, have a spout, and do not have rounded bottoms. They also come in a variety of sizes.
Solid and liquid substances in the lab are often heated. A bunsen burner produces a single open flame. It is used for sterilizing objects and heating. The gas used could be natural gas or a liquified petroleum gas like methane.
Spatulas are small hand-held tools used to scoop and transfer solids. They can also be used to apply paste-like treatments. Most spatulas are resistant to acids and heat, making them suitable for use with a range of substances.
Magnifying glass is a common lab equipment that produces a magnified image of an object. It is basically a convex lens in a frame with a handle.
Also referred to as a newton meter, this scale is used to measure the weight of an object by the tension of a spring. It consists of spring on one side and a hook on the other. It works by the principle of Hooke's law, which states that the force applied to an elastic object is directly proportional to the extension provided the elastic limit is not reached. This force gauge only measures weight and not mass.
This is a common type of laboratories apparatus that is used to measure the volume of a liquid. It is graduated, and every marking shows the amount of a reagent. This glassware is cylindrical and is also narrow.
Thermometers used in labs are almost similar to the one we use in our home as they also measure the temperature of substances (not body temperature) and have a high degree of precision.
This simple piece of chem lab equipment is used to deliver known volumes of a substance. It is often used during titrations. It is a long graduated tube with a stopcock on at the lower end. The most popular burettes are the 50ml, 25 ml, and 10ml varieties.
Solids are often weighed before use, as some experiments require exact amounts of substances. A balance is used to weigh objects. Analytical and toploading balances are the most commonly used types.
Funnels are another essential kind of lab apparatus. They are used to deliver substances into vessels with small openings. There are several types, each with a different function, such as filter, thistle, and dropping funnels. Buchner and Hirsch funnels are good examples of organic chemistry lab equipment.
A wash bottle is a squeeze container with a long nozzle. It is used to rinse lab glassware and for sterilization. Wash bottles are mostly made out of polyethylene. You can fill it with another solvent depending on the task you wish to perform. For example, ethanol or deionized water.
You often have to deal with chemicals, heat, and other hazardous substances when working in a lab. Tongs are used to grasp harmful objects and also hold hot vessels. Each type of tongs is designed for a particular use. Common examples are beaker, utility, and crucible tongs.
An ammeter is used to measure the amount of current in a circuit. The SI unit of current is amperes, hence the name.
Brushes for test tubes:
Brushes for test tubes is a tool used for cleaning. Brushes for test tubes are used to clean containers such as flasks, beakers, and test tubes. After use, an apparatus should always be cleaned and safely put away.
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