A measuring cylinder is laboratory equipment, used to measure the volume of a liquid. Also, popular as graduated cylinder or mixing cylinder, the measuring cylinder provides more accurate and precise measurement than other laboratory flasks and beakers.
The measuring cylinders come in various sizes ranging from 10 ml to 1,000 ml. The readings are taken after measuring the lowest portion of the meniscus.
What is meniscus?
As per the information available through various sources, the meniscus is the lowest portion of the convex dip of the liquid as it settles in the measuring cylinder.
What is the reason of meniscus formation?
The formation of meniscus takes place due to the attraction of water molecules within the walls of the measuring cylinder. It is based on the principle that states- “Adhesive forces are stronger than cohesive forces”.
Steps involved in measuring or calculating the volume of a measuring cylinder
In order to calculate the volume with the help of a measuring cylinder, you will have to find the height (h), and the radius (r) of the cylinder and put it into a simple formula- V = hπr2. The steps are given below:
- First, find the radius of the circular base of the measuring cylinder. If you know the diameter of the circle then you can divide it by 2 or if you know the circumference, then you have to divide it by 2π.
- Second, calculate the area of the circular base. The formula for calculating the area of a circle will serve the purpose here, A = πr2.
- Third, find the height of the cylinder. You can use a scale or a ruler to measure the height. The height is basically the distance between the edges of the two bases.
- Fourth, after finding the area and the height, you have to multiply the area of the circular base by the height of the cylinder as the formula for measuring volume is V = hπr2.
The volume is always represented in cubic units because it is the measure of a three-dimensional space.
The π is about the equivalent of 22/7.
Some tips to remember during the measurement
- Make sure that you have taken accurate measurements during the volume measurement process.
- If you are not sure of your own calculations then go for a calculator. This will make your work easy and less time-consuming.
- “Practice makes a man perfect”- this phrase works here too. Make up a few problems and practice it before you get down to do the process in real.
- Memorise the necessary formulas involved so that during the process, you don’t have to struggle for it.
Abdos range of measuring cylinders
As a leading name in plastic lab-ware products, Abdos bring forth an extensive assortment of general laboratory products for daily experiments in a research laboratory. We design and manufacture these products at our moulding unit using high purity and specialized resins. We guarantee and certify the accuracy of our volumetric products thereby reassuring our researchers’ confidence in our products.
- To expand the capacity at all our existing plants.
- In order to cater the need of scientific research, setting up of more factories across the globe.
- Promoting & generate the brand awareness by incorporating various Marketing activities and entering into a Digital Medium.
Abdos offers a wide range of measuring cylinders namely:-
- Measuring Cylinders Tall Shape, PP Class “B”
- Measuring Cylinders Tall Shape, TPX Class “B”
- Measuring Cylinder, TPX Class “A”
For detailed information on the same, please visit http://www.abdoslabware.com/measuring-cylinders-pp.html