BS 4951:1973
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for builders\' hardware: lock and latch furniture (doors)
Hardcopy , PDF
15-03-2002
English
15-10-1973
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Cooperating organizations
Foreword
Specification
1. Scope
2. Definitions
3. Selection of test samples
4. Workmanship
5. Dimensions and fixing systems
6. Materials
7. Finishes
8. Tests
9. Conditions of test
10. Marking
Appendices
A. Fitting of specimens to test blocks
B. Mechanical tests
Figures
1. Mortice lock or latch pierced or shaped to allow
passage of bolts
2. Keyhole dimensions and centres for mortice lock
furniture (with recommended spindle hole dimensions)
3. Levers and knobs
4. Projection of levers and knobs
5. Length and width of plates
6. Torque test rig
7. Tensile test rig
8. Durability test rig
9. Lever attachment to knob furniture
Performance tests and criteria for lever and knob furniture for locks and latches on doors. Metric dimensions of furniture for mortice locks and latches complying with BS 455.
| Committee |
B/538/4
|
| DevelopmentNote |
REPLACES BS 1331: 1954
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 8214:1990 | Code of practice for fire door assemblies with non-metallic leaves |
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