Measurements, calculations and verification procedure

When testing your device, it is important to apply the provisions of Annex III on measurements and calculations, as well as Annex IIIa. 

Annex IV sets out the verification procedure only to be used by the market surveillance authorities. Please note that the specified tolerances apply only to the authorities’ verification and not to your own test results, i.e. Annex IV is only informative for suppliers.