CSN EN 16475-2

CSN EN 16475-2 This European Standard covers electrically operated metal fans for chimneys that are able to create a stable positive or negative pressure for the chimney. This European Standard covers fans installed inline in the connecting flue pipe (inline fans) or mounted on the chimney outlet (exhaust fans). This standard excludes chimney cowls (Terminals with aerodynamic characteristics).
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.