General This European Standard specifies the standardization of side curtain ventilation systems supplied for environmental control@ installed on farm buildings@ that use a barrier made from a flexible foil or fabric which moves via a rolling or folding action@ or rigid panels that slide@ as far as safety aspects@ performance and sustainability issues are concerned. Included are machines that operate using the potential energy stored by the earlier application of human or animal force@ such as stretched springs. This European Standard does not cover operation in environments where the electromagnetic disturbances are outside the range of those specified in EN 61000-6-3. Exclusions This European Standard does not apply to the following which are intended for a different use: ?? doors and side curtains when used as doors which are specified in EN 13241-1:2003+A1:2011; ?? systems inflated by air; ?? screens supplied for the control of fire or smoke; ?? screens that move instantaneously upon the application of human force; ?? side curtains when used to control ventilation conditions in a toxic or explosive environments. This European Standard does not cover the radio part of side curtain systems. If a radio operating device is used@ the relevant ETSI standards should be applied in addition.