You must register in order to access the MeClas tool and all supporting information. A short description of the Terms of conditions can be downloaded. The manual gives an idea on the basic functionalities of MeClas.



7 May 2018: This MeClas version 4.5 is currently the old version (will only temporarily remain available). You are recommended to use the new MeClas version 5.0 (available later this week). In case of questions or issues, don’t hesitate to contact

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The MECLAS tool aims to reproduce the classification for complex metal mixtures. Although prepared with great care, flawless operation cannot be guaranteed. Users of the MECLAS tool need to be aware of this. By using the MECLAS tool, users accept full responsibility for their calculations. Neither ARCHE, EUROMETAUX or the data providers can take liability for (mis)use of the results.