This standard deals with all significant hazards, hazardous situations and hazardous events relevant to ovens and dryers in which flammable substances are released by evaporation from and curing of coating materials. This standard is only applicable to machines which are used as intended and under the conditions which are foreseeable as malfunction by the manufacturer (see Clause 4). This standard is not applicable to: ovens and dryers in which flammable substances are released by evaporation from and curing of coating materials, in which the concentration of these flammable substances shall not, under no circumstances, exceed 3 % of the LEL. For these machines, EN 746-1 and EN 746-2 are applicable, combined spraying and drying booths according to EN 13355, ovens for hardening metals, sintering furnaces, enamelling plants, portable heating systems for drying (for instance infrared radiant heaters, hot-air blowers, blow-dryers), machinery for production of pharmaceutical products, machinery for production of food, solvent recovery plants, distillation and/or refraction plants, textile dry-cleaning systems. This standard is not applicable for machinery which are manufactured before the date of its publication as EN.