DIN EN 1906 (Classification key)

Meaning of the numbers in the classification key:

 

1. digit: Category of use
Grades	1-4

 

2. digit: Durability
Grades	6 oder 7
Description of grades	6 = 100.000 cycles 7 = 200.000 cycles

 

3. digit: Door mass
Grades	no classification
Description of grades	–

 

4. digit: Fire resistance
Grades	0, A, A1, B, B1, C, C1, D oder D1
Description of grades	0 = Not approved for use on fire/smoke door assemblies A = Suitable for use on smoke door assemblies A1 = Suitable for use on smoke door assemblies (tested with 200,000 test cycles on a test door) B = Suitable for use on fire/smoke door assemblies (tested with 200,000 test cycles) B1 = Suitable for use on fire/smoke door assemblies (tested with 200,000 test cycles on a test door) C = Suitable for use on smoke and fire-resistant doors with requirements for fire-resistant dividers in backplate, door rose and escutcheon C1 = Suitable for use on smoke and fire-resistant doors with requirements for fire-resistant dividers in backplate, door rose and escutcheon (tested with 200,000 test cycles on a test door) D = Suitable for use on fire/smoke door assemblies with require for a steel core in the handle D1 = Suitable for use on fire/smoke door assemblies with require for a steel core in the handle (tested with 200,000 test cycles on a test door)

 

5. digit: Safety *
Grades	0 oder 1
Description of grades	0 = Normal use 1 = Safety applications

 

6. digit: Corrosion resistance
Grades	0-5
Description of grades	0 = No defined corrosion resistance (no test) 1 = Mild resistance (24-hr salt-spray test) 2 = Moderate resistance (48-hr salt-spray test) 3 = High resistance (96-hr salt-spray test) 4 = Very high resistance (240-hr salt-spray test) 5 = Extremely high resistance to corrosion (480-hour salt-spray test)

 

7. digit: Security
Grades	0-4
Description of grades	0 = Furniture not approved for use on burglary resistand doors 1 = Mild burglary resistance 2 = Moderate burglary resistance 3 = High burglary resistance 4 = Very high burglary resistance

 

8. digit: Type of operation
Grades	A, B oder U
Description of grades	A = Spring-assisted furniture B = Spring-loaded furniture U = Unsprung furniture

 

* According to DIN EN 1906 the increased safety tests (for example for doors to cellars where there is risk of falling) are optional, so the figure 0 may appear by digit 5 in the classification key. However, according to DIN 18255, all public building sets, and as such subject to categories of use grades 3 and 4, must pass this test.