This document applies to stationary surface-finishing machines with stationary work piece (see 3.1) or with moving work piece (see 3.2) which are used to grind or polish horizontal surfaces of slabs, strips or tiles of natural stone and engineered stone (e.g. agglomerated stone) as defined by EN 14618:2009.This document deals with all significant hazards, hazardous situations and events relevant to surface-finishing machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4).This document specifies the appropriate technical measures to eliminate or reduce risks arising from the significant hazards.This document deals with the foreseeable lifetime of the machinery including the phases of transport, assembly, dismantling, disabling and scrapping.This document does not deal with:-hand-held grinding machines;-machines intended for operation in a potentially explosive atmosphere;-operation in severe environmental conditions (e.g. extreme temperatures, corrosive environment);-machines intended for outdoor operation.This document is not applicable to machinery which is manufactured before the date of publication of this document by CEN.