Classification of Hinges
The Standard for Single Axis Hinges, BS EN 1935:2002, provides details on product types, classification by use, test cycles, door mass, corrosion resistance, as well as definitions, product performance requirements, test apparatus, test methods and marking of products. In addition, the standard also includes details for people with special needs.
The scope of the standard specifies requirements for single-axis hinges, for windows and doors opening only in one direction, whose rotation axis is no more than 30mm away from the sash or door. It also covers for both fixed pin and lift-off hinges.
The European standard classifies single-axis hinges using an 8 digit coding system. This is also in line with standards for most other items of building or architectural hardware.
An example of the 8 Digit classification is as follows:
To Further Explain the 8 Digit classification, Cooke Brothers have introduced graphical symbols, these have kindly been reproduced from the ABHM (Association of Building Hardware Manufacturers).
 Category
of use |
 Durability |
 Test door
mass |
 Fire
resistance |
 |
|
|
|
 Safety |
 Corrosion
resistance |
 Security |
 HInge grade |
Digit 1 - Category of use
Four categories of duty are used
|
|
|
| Category 1: |
|
Light Duty |
| Category 2: |
|
Medium Duty |
| Category 3: |
|
Heavy Duty |
| Category 4: |
|
Severe Duty |
Digit 2 - Durability
Three grades are identified for single-axis hinges
|
|
|
| Grade 3: |
|
10,000 test cycles, for light duty hinges on windows |
| Grade 4: |
|
25,000 test cycles for light duty hinges on windows and doors |
| Grade 7: |
|
200,000 test cycles for medium, heavy and severe duty hinges on doors only |
Digit 3 - Test Door Mass
Eight door mass grades related to single-axis hinges
|
|
|
| Grade 0: |
|
10Kg Test Door mass |
| Grade 1: |
|
20Kg Test Door mass |
| Grade 2: |
|
40Kg Test Door mass |
| Grade 3: |
|
60Kg Test Door mass |
| Grade 4: |
|
80Kg Test Door mass |
| Grade 5: |
|
100Kg Test Door mass |
| Grade 6: |
|
120Kg Test Door mass |
| Grade 7: |
|
160Kg Test Door mass |
Digit 4 - Suitability for use on fire/smoke doors
Two grades of suitability are identified within the standard
|
|
|
| Grade 0: |
|
Not suitable for use on smoke/fire door assembles |
| Grade 1: |
|
Suitable for use on smoke/fire door assemblies. Subject to satisfactory assessment under EN1634. |
Digit 5 - Safety
Single axis hinges are required to satisfy the essential requirement of "safety in use"
|
|
|
| Grade 1: |
|
Safe to use |
Digit 6 - Corrosion Resistance
Five grades of corrosion resistance are identified in accordance with EN 1670
|
|
|
| Grade 0: |
|
no defined corrosion resistance |
| Grade 1: |
|
mild resistance |
| Grade 2: |
|
moderate resistance |
| Grade 3: |
|
high resistance |
| Grade 4: |
|
very high resistance |
Digit 7 - Security
Two grades of security are identified for singles axis hinges
|
|
|
| Grade 0: |
|
No security |
| Grade 1: |
|
Suitable for application requiring a degree of security. Annex C of the standard details the hinge grade to use for the level of security required. |
Digit 8 - Hinge Grade
Fourteen grades are identified within the standard, as detailed in the following table:
|
Hinge Grade |
|
Usage |
|
Test Cycles |
|
Door Mass |
|
| 1 |
Window |
10,000 |
10Kg |
|
|
|
|
| 2 |
Window |
10,000 |
20Kg |
|
|
|
|
| 3 |
Window / Door |
25,000 |
20Kg |
|
|
|
|
| 4 |
Door |
200,000 |
20Kg |
|
|
|
|
| 5 |
Window |
10,000 |
40Kg |
|
|
|
|
| 6 |
Window / Door |
25,000 |
40Kg |
|
|
|
|
| 7 |
Door |
200,000 |
40Kg |
|
|
|
|
| 8 |
Window |
10,000 |
60Kg |
|
|
|
|
| 9 |
Window / Door |
25,000 |
60Kg |
|
|
|
|
| 10 |
Door |
200,000 |
60Kg |
|
|
|
|
| 11 |
Door |
200,000 |
80Kg |
|
|
|
|
| 12 |
Door |
200,000 |
100Kg |
|
|
|
|
| 13 |
Door |
200,000 |
120Kg |
|
|
|
|
| 14 |
Door |
200,000 |
160Kg |
|
|
|
|
|
