Standards & Legislations >Hinges |
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| Standards and Certification |
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| BS EN 1935 Single axis hinges |
| BS EN 1935 classifies door furniture door furniture by using an 8 digit coding system. A similar classification applies to all building hardware product standards so that complementry items of hardware can be specified to, for instance, a common level of corrosion resistace, category, category of use, etc. each digit refers to a particular feature of the product measured against the standard's performance requirements. |
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| Digit1 - category of use |
| Four grades are identified: |
-grade 1:light duty |
-grade 2:medium duty |
-grade 3:heavy duty |
-grade 4: severe duty |
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| Digit2 - Durability |
| three grades of durability are identified: |
| -grade 3: 10 000 test cycles, for light duty hinges on windows only |
-grade 4: 25 000 test cycles, for light duty hinges on windows and doors |
-grade 7: 20 000 test cycles, for medium. heavy and serve duty hinges on door only |
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| Digit3 - Test door mass |
| Eight door mass grades related to single-axis hinges are identified in this European standard as shown in table 1 below. |
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| Table1 |
Test door mass grade |
Door mass |
0 |
10kg |
1 |
20kg |
2 |
40kg |
3 |
60kg |
4 |
80kg |
5 |
100kg |
6 |
120kg |
7 |
160kg |
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| Digit4 - Fire resistance |
| Two grades of fires resistance are identified: |
| -grade0: not approved for fire /smoke resistant door assemblies |
| -grade1: suitable for fire/smoke resistant door assemblies subject to |
| satisfactory assessment of the contribution of the single-axis hinge to the fire resistance of the specified fire/smoke door assemblies. such assessment is beyond the scope of this European standard(see EN 1634-1). |
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| Digit5 - safety |
| Single-axis hinges are required to satisfy the essential requirement of safety in use. Therefore, only grades 1 is identified. |
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| Digit6 -Corrosion resistance |
| five grades of corrosion resistance are identified in accordance are identified in accordance with EN 1670: |
| -grade 0: no defiined corrosion resistance. |
| -grade 1: mild resistance |
| -grade 2: moderate resistance |
| -grade 3: high resistace |
-grade4: very high resistance |
