BS 7553:1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for loft ladders
Hardcopy , PDF
28-02-2007
English
31-01-1992
Committees responsible
Foreword
Specification
1. Scope
2. Definitions
3. Classification of duty rating
4. Marking
5. Instructions
6. Construction
7. Installation
8. Performance
Appendices
A. General information on tests
B. Test for deflection under load
C. Horn deflection test
D. Test for strength of rungs and treads
E. Ladder stops test
F. Load, fatigue and impact tests on the complete
ladder
G. Torsion test for rungs and treads
H. Handrail test
J. Use of plastics materials in loft ladders
Tables
1. Loads for deflection test
2. Test loads for horn deflection test
3. Test loads for rungs and treads
4. Load and fatigue tests
5. Loads for impact test
6. Test loads for handrail test
Figures
1. Arrangement for horn deflection test
2. Ladder stops test
3. Typical arrangement for load and fatigue tests
4. Arrangement for impact test
5. Handrail test
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