This European Standard specifies the requirements and/or measures to remove the hazards and/or limit the risks on semi-automatic and automatic horizontal cutting cross-cut sawing machines with one saw unit (radial arm saws), hereinafter referred to as "machines", designed to cut solid wood, chipboard, fibreboard, plywood and also these materials when covered with plastic edging and/or plastic/light alloy laminates. Any work-piece positioning equipment fitted to the machine is included in this European Standard. This European Standard covers the hazards relevant to these machines as stated in Clause 4. This European Standard does not apply to machines : a) with manual feed of the saw unit; or b) for cross cutting logs; or c) specifically designed for sawing and/or milling roof timber frames; or d) fitted with hydraulic braking systems. NOTE Radial arm saws with manual feed of the saw unit (the saw unit is moved by hand) are dealt with in prEN 1870-17 and prEN 61029-2-2. For Computer Numerically Controlled (CNC) machines this European Standard does not cover hazards related to Electro-Magnetic Compatibility (EMC). NOTE The requirements of this European Standard apply to all machines whatever their method of control e.g. electromechanical and/or electronic. This European Standard is primarily directed to machines which are manufactured after the date of issue of publication by CEN.