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For all internal and external doors for use by the public, and others with little incentive to take care, i.e.
— grade 3: For closing doors from at least 105ºopen;
— grade 4: For closing doors from 180ºopen. NOTE 1 Grade 4 classification assumes
standard installation according to the manufacturer’s instructions.
— grade 8: 500 000 test cycles.
Where a door closer provides a range of power sizes both the minimum and the maximum sizes shall beidentified
— grade 0: Not suitable for use on fire/smoke door assemblies;
— grade 1: Suitable for use on fire/smoke door assemblies, subject to satisfactory assessment of the contribution of the door closer to the fire resistance of specified fire/smoke door assemblies. Such assessment is outside the scope of this European Standard.
All door closers are required to satisfy the Essential Requirement of safety in use. Therefore only grade 1 is identified.
— grade 0: No defined corrosion resistance;
— grade 1: Mild resistance;
— grade 2: Moderate resistance;
— grade 3: High resistance;
— grade 4: Very high resistance.