What are the Differences Between OIML Classes?

The exact difference is explained in the OIML guideline, but at a basic level, E1 has the narrowest and M1 the highest tolerance limit, i.e. E1 is the most accurate.

OIML weight classes are designed to provide different levels of accuracy for various applications. The classification system ensures that users can select weights appropriate for their specific precision requirements.

Understanding these differences is crucial for selecting the right weights for your application. Using weights of insufficient accuracy can lead to measurement errors, while using weights of excessive accuracy may be unnecessarily expensive.

The OIML classification system provides a standardized approach to weight accuracy that is recognized internationally, making it easier for users to understand and compare different weight options.