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The world of weighing scales and weighing machines revolves around accuracy and precision. Metrology gives you a much better and universally accepted understanding of measurement units, so you get consistent measurements every time. Metrology aims to uphold the integrity of the readings generated by different weighing scales, which makes our daily lives much easier.

What is Legal Metrology?

Legal metrology is usually in the form of a document or a certificate that verifies that a certain measuring device is accurate as per the prescribed standards. This certificate is issued by the legal metrology department and is proof that you can use any particular commercial analog scale or digital weighing instrument without any worry about getting accurate results.

women measuring instrument accuracy

The legal metrology certificate is given after carefully examining the reliability and accuracy of the weighing scale and making sure it complies with the Legal Metrology Act, 2009. The legal metrology certificate is typically valid for about one year, and after that, you have to renew it.

The renewal process involves the re-verification and then recertification of the weighing instrument by the relevant authorities.

The Importance of Legal Metrology

If you run a business that sells weighing scales or you use these scales for commercial activities, then it is paramount that you only use scales that comply with legal metrology requirements. If your scales are verified, it builds more trust in your business and also reduces weighing errors and discrepancies.

Here is why legal metrology is extremely important

  1. Legal Compliance

If you invest in legal metrology and strive to have your analog or electronic weighing scales certified, it will help you comply with the legal requirements. Having this certification is proof that the weighing scale you are using in your business gives accurate results.

If your scale isn’t verified and you are caught measuring the weight with errors, you can be held accountable. It can subject you to penalties and fines, which is bad for business. So, in order to avoid legal complications, make sure you get legal metrology certificates for your scales.

  1. Accuracy

If your measuring instrument is not verified, it can make the readings taken by it questionable. To comply with the legal metrology requirements, every measuring instrument has to go through a number of accuracy and precision tests.

If an instrument fairs well in all these tests, it is awarded the legal metrology certificate. This certificate is proof that the device you are using is recognized by authorities in terms of the correctness of the readings.

bearing measurement

More accurate weighing scales usually meet all the legal metrology requirements, which makes them the most reliable weighing solutions for both personal and commercial applications.

  1. Customer Trust

If a business shows that it possesses legal metrology documents, it is proof that it can be trusted. They received this certification for adhering to every prescribed standard and after going through a vigorous trial and testing period.

This makes your customers realize that you are committed to fair trade practices. With more customer trust, you are bound to attract more business to your doorstep, and that is all due to your having a legal metrology certificate.

So, to build more customer trust and foster loyalty, you must work to get a legal metrology certificate for the weighing solutions you use.        

  1. Reproducibility

A weighing machine that has legal metrology verification can produce the same measurements under similar conditions time and time again. This reproducibility is the result of adherence to standard practices and the accuracy of the instrument, which is determined by legal metrology tests.

Metrology defines the procedures used to test the instruments, and those can be used to maintain accuracy each time you use them to take readings. The more reproducibility an instrument has, the more precision it will give in its results, and that can help you avoid errors that can result in financial loss. 

  1. Better Quality Control

Metrology can help businesses make sure their products meet all the regulatory requirements and are following the standards to the letter. Legal metrology can help businesses maintain consistency in the production process in terms of product weight uniformity, dimensions, and size.

digital gauge calibration

It can thus help you ensure foolproof quality control by ensuring manufacturing precision. This can also help businesses reduce waste, find and remove production errors, and boost operational efficiency.

This can allow manufacturers to embrace excellence and always provide consistent product quality for years to come.                         

Applications of Legal Metrology in Weighing Scales

Legal metrology in weighing scales finds a lot of applications. The legal metrology certificate is essential for both personal weighing scales and commercial weights and measurement solutions. All the weighing scales that are used commercially require legal metrology certificates if they are to be a part of the market.

test weight calibration

These certificates are also required if you sell weighbridges that measure the weights of heavy-duty vehicles. Another important application of legal metrology is in the petrol and diesel dispensing industry, where it can help ensure error-free measurements and reduce fraud. 


A legal metrology certificate is a document that verifies the accuracy of any measuring device. It is a practice that ensures fair trade and eliminates inconsistencies in the measured readings.

It is very important for every business that uses measuring devices to invest both time and money into getting this certification since it can help them avoid the financial risks that come with using unreliable measurement tools.

If you don’t pay attention to legal methodology, you will not be able to comply with the legal requirements, and that can lead to fines, imprisonment, and other major penalties, not to mention the damage it will do to the customer trust that you worked so hard to build over the years.

So, prioritize legal metrology if you want to sell, buy, or produce weighing scales for personal or commercial use to stay on the safe side.

Contact us to get your hands on premium-quality weighing scales that fully comply with legal metrology requirements and provide maximum accuracy.

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