BS EN1935: 2002
This European Standard has replaced the previous national product performance standard BS 7352: 1990 Strength and durability performance of metal hinges for side hanging applications and dimensional requirements for template drilled hinges.
The standard includes a wide range of hinges and includes single axis hinges and lift off hinges for use on windows and doors.
For all internal or external doors for use by the public or others, with little or no incentive to take care. i.e. where there is chance of misuse of the door.
| Grade 1: | Light duty. Example: Domestic or office situation, areas with no access to general public. |
| Grade 2: | Medium duty. Example: Domestic and office situation where limited access is allowed to the general public. |
| Grade 3: | Heavy duty. Example: Public and institutional buildings such as
libraries, hospitals and schools. |
| Grade 4: | Severe duty. Example: Hinges for use on doors, which are subject to frequent violent usage. |
When deciding on finish and the best hinge for each application take into account; appearance to match both the environment and product; position of doors or windows within building and direction of opening; type of building use e.g. hospital and its location, coastal situation; frequency of use; (see table A and table B) security and fire resistance requirements.
TESTING - Refer to table A
There are three categories identified for hinges manufactured to this standard.
| Grade 3: | 10,000 test cycles |
| Grade 4: | 25,000 test cycles |
| Grade 7: | 200,000 test cycles |
Eight test door mass grades are identified according to table A of this standard.
Two grades of fire behaviour are identified for hinges manufactured to this standard.
| Grade 0: | Not Suitable for use on fire resistant and / or smoke control door assemblies |
| Grade 1: | Suitable for use on fire / smoke resistant door assemblies subject to satisfactory assessment of the contribution of the hinges to the fire resistance of the specified fire / door assemblies. |
All hinges are required to satisfy the essential requirement of safety in use. Therefore only grade 1
is identified.
Five grades of corrosion resistance are identified according to BS EN1670:
| Grade 0: | No defined corrosion resistance |
| Grade 1: | Mild resistance |
| Grade 2: | Moderate resistance |
| Grade 3: | High resistance |
| Grade 4: | Very high resistance |
Two grades of security are identified for hinges manufactured to this European Standard:
| Grade 0: | Not suitable for use on burglar –resistant door assemblies; |
| Grade 1: | Suitable for use on burglar resistant door assemblies, subject to satisfactory assessment of the contribution of the hinges to the burglar resistance of specified burglar-resistant door assemblies. |
Digit 8 -
Hinge grade
Fourteen grades of hinge are identified in this
European Standard as detailed in table
A.
Table
A
Grade |
Max. mass of hinged door leaf kgs |
Max. annual number of operations (cycles) |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
10 20 20 20 40 40 40 60 60 60 80 100 120 160 |
10,000 10,000 25,000 200,000 10,000 25,000 200,000 10,000 25,000 200,000 200,000 200,000 200,000 200,000 |
The standard requires that single axis hinges manufactured in accordance with this standard for use on fire –resistant and or/ smoke control doors or locked doors on escape routes, shall be marked as follows:
a) The manufacturers name or trademark or other means of identification
b) The hinge grade according to table A
c) The number of the European Standard (BS EN 1935)
Hinges supplied for use on fire and escape door sets will be supplied complete with intumescent
pads, which must be fitted behind each hinge flap, between the timber door and frame and the metal hinge leaves.