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[Guide] How to read the hinge classification key

The test methods and requirements for single- and multi-axis hinges on doors and windows are specified in European standards and test specifications and summarised according to an 8-digit classification system.

Each box has a specific meaning. Click on the number to find out the meaning or scroll down the page.

1 2 3 4 5 6 7 8

 

1. CATEGORY OF USE - Category 1, 2, 3 and 4

CATEGORY 1: Light duty. For use in buildings, houses or other living areas, low frequency of use, clear intention of careful handling, low risk of accidents or misuse.

CATEGORY 2: Medium duty. For use in buildings, houses or other living areas, medium frequency of use, some intention of careful handling, risk of accidents or misuse.

CATEGORY 3: Heavy duty. For use in buildings, high frequency of use, little intention of careful handling, risk of accidents or misuse.

CATEGORY 4: Severe duty. Hinges for doors that are subject to frequent and heavy use.

2. TEST CYCLES IN CONTINUOUS OPERATION - Grade 3, 4 and 7 

GRADE 3: 10,000 test cycles (only window hinges)

GRADE 4: 25,000 test cycles (door and window hinges)

GRADE 7: 200,000 test cycles (only door hinges)

3. TEST DOOR MASS – Grade from 0 to 7

GRADE 0: 10 kg

GRADE 1: 20 kg

GRADE 2: 40 kg

GRADE 3: 60 kg

GRADE 4: 80 kg

GRADE 5: 100 kg

GRADE 6: 120 kg

GRADE 7: 160 kg

4. FIRE RESISTANCE – Grade 0 and 1

GRADE 0: Not suitable for use on smoke/fire door assembles

GRADE 1: Suitable for use on smoke/fire door assembles (EN 1634-1)

5. SAFETY - Grade 1

GRADE 1: All hinges are required to satisfy the essential requirements of safety in use. Therefore there is only Grade 1 here.

6. CORROSION RESISTANCE - Grade from 0 to 5

GRADE 0: no defined corrosion resistance

GRADE 1: mild corrosion resistance

GRADE 2: moderate corrosion resistance

GRADE 3: high corrosion resistance

GRADE 4: very high corrosion resistance

GRADE 5: unusually high corrosion resistance

7. SECURITY - Grade 0 and 1

GRADE 0: not suitable for use on burglar-resistant door assemblies

GRADE 1: suitable for use on burglar-resistant door assemblies, depending on the evaluation of the hinges' contribution to the door's resistance. This evaluation is not covered by DIN EN 1935.

8. HINGE GRADE - Grade from 1 to 14

GRADE 1 10 kg test door

10.000 test cycles

GRADE 2 20 kg test door

10.000 test cycles

GRADE 3 20 kg test door

25.000 test cycles

GRADE 4 20 kg test door

200.000 test cycles

GRADE 5 40 kg test door

10.000 test cycles

GRADE 6 40 kg test door

25.000 test cycles

GRADE 7 40 kg test door

200.000 test cycles

GRADE 9 60 kg test door

25.000 test cycles

GRADE 10 60 kg test door

200.000 test cycles

GRADE 11 80 kg test door

200.000 test cycles

GRADE 12 100 kg test door

200.000 test cycles

GRADE 13 120 kg test door

200.000 test cycles

GRADE 14 160 kg test door

200.000 test cycles