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What is EN 45501:2018?

EN 45501:2018 is a widely recognized international standard that sets requirements for metrological aspects of non-automatic weighing instruments used for legal metrology. This standard, developed by the European Committee for Standardization (CEN), provides manufacturers, metrologists, and regulatory authorities with guidelines to ensure accuracy and reliability in weighing instruments.

Importance of EN 45501:2018

Accurate and reliable weighing instruments are crucial in various sectors such as trade, industry, and healthcare. The implementation of EN 45501:2018 helps to ensure fair trade practices, consumer protection, and safety. It provides a framework for testing, verification, and calibration of weighing instruments, making sure they meet specified accuracy requirements.

The standard also addresses key aspects such as characteristics and maximum permissible errors of weighing instruments, environmental conditions, performance tests, and conformity assessment procedures. Compliance with EN 45501:2018 guarantees that weighing instruments meet specific quality standards, providing users with confidence in their measurements.

Benefits of Compliance

Complying with EN 45501:2018 offers several benefits for manufacturers, users, and regulatory bodies. For manufacturers, adherence to this standard ensures that their weighing instruments meet established requirements, improving market acceptance and customer satisfaction. It also reduces the risk of legal disputes and potential recalls due to non-compliance.

Users of weighing instruments, such as businesses and consumers, benefit from accurate and reliable measurements. This promotes fair trade, prevents financial losses, and assures product quality and safety. Regulatory bodies rely on EN 45501:2018 to assess and verify the suitability of weighing instruments for commercial use, enhancing public confidence in the marketplace.


EN 45501:2018 plays a vital role in ensuring the accuracy, reliability, and integrity of weighing instruments used for legal metrology. Compliance with this standard benefits manufacturers, users, and regulatory bodies alike, contributing to fair trade practices, consumer protection, and public confidence. By following the guidelines set by EN 45501:2018, we can trust that our measurements are accurate and reliable, supporting a wide range of industries and applications.



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