BS DD171(1987) : 1987

Foreword
Committees responsible
Guide
0. Introduction
1. Scope
2. Definitions
3. General requirements
3.1 Application to door assemblies
3.2 Application to door leaves in isolation
3.3 Categories of duty
4. Strength
4.1 General
4.2 Criteria for acceptance
4.3 Slamming shut impact
4.4 Slamming open impact
4.5 Heavy body impact
4.6 Hard body impact
4.7 Torsion
4.8 Downward deformation
4.9 Closure against obstruction
4.10 Resistance to jarring and vibration
4.11 Abusive forces on door handles
5. Operation
6. Dimensional requirements
7. Dimensional stability
7.1 General
7.2 Bow
7.3 Twist
8. Detrimental characteristics
8.1 Liability to vermin infestation and accumulation
      of dirt fungi and insects
8.2 Effect of other building materials
9. Sound insulation
10. Fire resistance
11. Weather resistance (external doors)
11.1 General
11.2 Air permeability
11.3 Watertightness
11.4 Water shedding
11.5 Wind resistance
11.6 Acceptance criteria
12. Thermal transmittance (external doors)
13. Resistance to forced entry
Appendix
A. Test methods
A.1 General
A.2 Sequence of weathertightness tests
A.3 Details of specimen
A.4 Restraint
A.5 Variability in test results
A.6 Required number of tests
A.7 Form of test report
A.8 Test 1; slamming shut and open impact
A.9 Test 2; heavy body impact
A.10 Test 3; hard body impact
A.11 Test 4; torsion
A.12 Test 5; downward deformation
A.13 Test 6; closure against obstruction
A.14 Test 7; resistance to jarring and vibration
A.15 Test 8; resistance to hardware to abusive forces
A.16 Test 9; operating forces
A.17 Test 10; hygrothermal distortion test for door
      leaves responding principally to moisture movement
A.18 Test 11; thermal distortion test for door leaves
      responding principally to thermal movement
Tables
1. Categories of duty, description and examples
2. Slamming shut impact; test 1a
3. Slamming open impact; test 1b
4. Heavy body impact; test 2
5. Hard body impact; test 3
6. Torsion; test 4
7. Downward deformation; test 5
8. Closure against obstruction; test 6
9. Resistance to jarring; test 7
10. Resistance to abusive force; test 8
11. Operating forces; test 9
12. Dimensional stability; tests 10 and 11
13. Approximate levels of sound insulation achieved
      by various door assemblies
14. Suggested resistance level to rain ingress in
      accordance with BS 5368: Part 2
15. Suggested maximum average thermal transmittance
      values
Figures
1. Air permeability limits
2. Standard frame for testing separate door leaves
3. Typical arrangement of slamming test on a 900 mm
      wide door
4. Arrangement for heavy body impact test
5. Aiming patterns for hard body impact test
6. Arrangement for resistance to torsion test
7. Arrangement of hardwood slip for obstruction test
8. Arrangement for jarring test
9. Arrangement for the determination of operating
      forces
10. A movement bridge

Provides guidance on specifying the performance requirements for hinged or pivoted door assemblies for use by pedestrians and their chattels. Some of the requirements are applicable to door leaves in isolation; requirements not applicable to separate door leaves are indicated. Does not cover doors for specialized applications such as, for example, where safe storage of valuables is essential. Covers definitions, general requirements, strength, operation, dimensional requirements, dimensional stability, detrimental characteristics, sound insulation, fire resistance, weather resistance (external doors), thermal transmittance (external doors) and resistance to forced entry.