This part of ISO 11148 specifies safety requirements for hand-held non-electric power tools (hereinafter “assembly power tools for non-threaded mechanical fasteners”) intended for installation, tightening or removal of both breakstem and non-breakstem rivets, bolts, plugs and fasteners from one side of a workpiece into metals, plastics and other materials. The assembly power tools for non-threaded mechanical fasteners can be powered by compressed air, hydraulic fluid or internal combustion engines and are intended to be used by one operator and supported by the operator's hand or hands, with or without a suspension, e.g. a balancer. NOTE 1 At the time of publication, no assembly power tools for non-threaded mechanical fasteners driven by internal combustion engines are known. Once these are identified, it isintended to amend this part of ISO 11148 to include such power tools. This part of ISO 11148 is applicable to: - breakstem fastener, rivet or plug tools; - breakstem lockbolt tools; - mandrel loaded riveting tools; - rivet nut setters.