Resistance test of Magnets:
- Trapping an A4 80g/m² sheet of paper in the magnetized closing system of the item
- Checking that the 80gr/m² paper sandwiched in the closing system does not alter the attractive force
For magnetized sections on magnets:
- Pass an A4 80g/m² sheet of paper between the magnet and the metal support
- Check that the 80gr/m² paper sandwiched between the magnet and the metal support does not alter the attractive force