EN 792 applies to hand-held non-electric power tools driven by rotary or linear motors, powered by compressed air or hydraulic fluid and intended to be used by one operator and supported by: -- the operator's hand or hands, -- a suspension, e.g. a balancer. This part of EN 792 applies to hand-held non electric power tools intended for polishing and sanding with all types of movement e.g. rotary, orbital and reciprocating, using coated abrasive products and bonnets of various soft materials and endless belts. This part lists the significant hazards caused by such power tools and specifies safety requirements valid for different aspects of safety during their foreseeable lifetime. Power tools covered by this part of the standard: -- belt sanders, -- orbital sanders, -- polishers, -- random orbital sanders, -- rotary sanders, -- straight line sanders. Special requirements and modifications on a hand-held power tool for the purpose of mounting it in a fixture are not covered by this part. NOTE At the date of publication no sanders and polishers driven by internal combustion engines are known.