BS 8313:1997
Current
The latest, up-to-date edition.
Code of practice for accommodation of building services in ducts
Hardcopy , PDF
English
15-07-1997
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Committees responsible
Foreword
Code of practice
1 Scope
2 References
3 Definitions
4 Exchange of information
5 Materials and components
6 General
7 Restrictions on positioning and combination of services
8 Space requirements
9 Access
10 Protection of services in ducts
11 Drainage of service ducts
12 Ventilation of service ducts
13 Fire precautions
14 Other safety precautions
15 Service entries and exits
16 Identification and marking
17 Duct construction
18 Inspection and testing
19 Maintenance
Annexes
A (informative) Installation space for air ducts
(detailed method)
B (informative) Installation space for air ducts
(simplified method)
C (informative) Work in confined spaces
D (informative) Acts, bylaws and statutory regulations
Tables
1 Free area of ventilation opening for dispersal of small
leaks
A.1 Dimensions where f1=100 and f2=300
A.2 Dimensions where f1=100 and f2=300
A.3 Dimensions where f1=100 and f2=300
A.4 Dimensions where f1=100 and f2=300
A.5 Values of ea and eb
A.6 Values of eal, ea2, eb1 and eb2
A.7 Values of eal, ea2, eb1 and eb2 by firm obstacles
A.8 Values of n for a firm obstacle on one side
A.9 Values of n for a firm obstacle on two sides
A.10 Values of n for a firm obstacle on three sides
A.11 Values of n for a firm obstacle on four sides
B.1 Dimensions of X
Figures
1 Minimum sizes of access openings for passage by persons
2 Anthropometric data
A.1 Space with limitations due to firm obstacles
A.2 Jointing and supporting air ducts without
insulation and with a firm obstacle on one side
A.3 Jointing and supporting air ducts without
insulation and with a firm obstacle on two sides
A.4 Jointing and supporting air ducts without
insulation and with a firm obstacle on three sides
A.5 Jointing and supporting air ducts without insulation
and with a firm obstacle on four sides (obstacle
not continuous for more than 1 m)
A.6 Jointing and supporting pre-insulated air ducts
with a firm obstacle on one side
A.7 Jointing and supporting pre-insulated air ducts
with a firm obstacle on two sides
A.8 Jointing and supporting pre-insulated air ducts
with a firm obstacle on three sides
A.9 Jointing and supporting pre-insulated air ducts
with a firm obstacle on four sides (obstacle
not continuous for more than 1 m)
A.10 Insulation of an air duct in position with a firm
obstacle on one side
A.11 Insulation of an air duct in position with a firm
obstacle on two sides
A.12 Insulation of an air duct in position with a firm
obstacle on three sides
A.13 Insulation of an air duct in position with a firm
obstacle on four sides (obstacle not continuous
for more than 1 m)
A.14 Examples of installation spaces for flange
jointed air ducts
A.15 Installation space dimensions A and B for flange
jointed air ducts with a firm obstacle on one side
A.16 Installation space dimensions A and B for flange
jointed air ducts with a firm obstacle on two sides
A.17 Installation space dimensions A and B for flange
jointed air ducts with a firm obstacle on three
sides
A.18 Installation space dimensions A and B for flange
jointed air ducts with a firm obstacle on four
sides
A.19 Examples of installation space for slip jointed
air ducts
A.20 Installation space dimensions A and B for slip
jointed air ducts with a firm obstacle on one
or more sides
A.21 e-values
A.22 Minimum access allowance e for air ducts insulated
in position
A.23 Installation space dimensions A and B for air ducts
insulated in position with a firm obstacle on one
side
A.24 Installation space dimensions A and B for air ducts
insulated in position with a firm obstacle on two
sides
A.25 Installation space dimensions A and B for air ducts
insulated in position with a firm obstacle on
three sides
A.26 Installation space dimensions A and B for air ducts
insulated in position with a firm obstacle on
four sides
B.1 Installation spaces for uninsulated or
pre-insulated air ducts
B.2 Installation spaces for air ducts insulated after
installation
Index
List of references
Recommendations for the design, construction, installation and maintenance of fixed ducts. Also covered are suspended flooring, ceiling voids and cavities.
| Committee |
B/209
|
| DevelopmentNote |
Supersedes 96/103803 DC and BS 8313(1989) (10/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
|
| DocumentType |
Standard
|
| Pages |
54
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard gives recommendations for the design, construction, installation and maintenance of ducts in buildings used for the accommodation of services. It also covers enclosures such as ceiling voids and cavities which are used for services but which are not always referred to as ducts.
The recommendations in this standard should also be applied as far as practicable to the adaptation, modification or refurbishment of existing ducts and services within them. Appropriate precautions should be taken in all cases where the existing ducts contain hazardous materials, e.g. asbestos.
This standard covers service ducts attached to the outside of buildings but not service ducts between buildings.
This standard does not cover the design and construction of air or refuse ducts, nor those with `heart units\', `packaged plumbing\' or `service walls\', although parts of it are relevant to them.
This standard does not cover spaces intended mainly for purposes other than the accommodation of services, nor with plant areas such as boiler and calorifier rooms or gas storage areas.
The piping of radioactive substances and the specialist requirements for piping cryogenic liquids are generally outside the scope of this standard.
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