BS 8313:1989

Foreword
Committees responsible
Code of practice
Section one. General information
1 Scope
2 Definitions
3 Exchange of information
Section two. Materials and components for the
                construction of ducts
4 Materials and components
Section three. Design
5 General
6 Restrictions on positioning and combination of
    services
7 Space requirements
8 Access
9 Protection of services in ducts
10 Drainage of service ducts
11 Ventilation of service ducts
12 Fire precautions
13 Other safety precautions
14 Service entries and exits
15 Identification and marking
Section four. Construction, testing and maintenance
16 Duct construction
17 Inspection and testing
18 Maintenance
Appendices
A Installation space for air ducts (detailed method)
B Installation space for air ducts (simplified method)
C Work in confined spaces
D Acts, byelaws and statutory regulations
Tables
1 Free area of ventilation opening for dispersal of
    small leaks
2 Values of ea and eb
3 Values of ea1, ea2, eb1 and eb2
4 Values of ea1, ea2, eb1 and eb2 by firm obstacles
5 Values of n for a firm obstacle on one side
6 Values of n for a firm obstacle on two sides
7 Values of n for a firm obstacle on three sides
8 Values of n for a firm obstacle on four sides
Figures
1 Minimum sizes of access openings for passage by
    persons
2 Anthropometric data
3 Space with limitations due to firm obstacles
4 Jointing and supporting air ducts without insulation
    and with a firm obstacle on one side
5 Jointing and supporting air ducts without insulation
    and with a firm obstacle on two sides
6 Jointing and supporting air ducts without insulation
    and with a firm obstacle on three sides
7 Jointing and supporting air ducts without insulation
    and with a firm obstacle on four sides (obstacle not
    continuous for more than 1 m)
8 Jointing and supporting pre-insulated air ducts with
    a firm obstacle on one side
9 Jointing and supporting pre-insulated air ducts with
    a firm obstacle on two sides
10 Jointing and supporting pre-insulated air ducts with
    a firm obstacle on three sides
11 Jointing and supporting pre-insulated air ducts with
    a firm obstacle on four sides (obstacle not
    continuous for more than 1 m)
12 Insulation of an air duct in position with a firm
    obstacle on one side
13 Insulation of an air duct in position with a firm
    obstacle on two sides
14 Insulation of an air duct in position with a firm
    obstacle on three sides
15 Insulation of an air duct in position with a firm
    obstacle on four sides (obstacle not continuous for
    more than 1 m)
16 Examples of installation spaces for flange-joints
17 Space dimensions A and B for a firm obstacle on one
    side
18 Space dimensions A and B for a firm obstacle on two
    sides
19 Space dimensions A and B for a firm obstacle on
    three sides
20 Space dimensions A and B for a firm obstacle on four
    sides
21 Examples of installation space for slip joints
22 Space dimensions A and B for a firm obstacle on one
    or more sides
23 e-values
24 Working space dimension e for air ducts insulated
    in position
25 Installation space dimensions A and B for air ducts
    insulated in position with firm obstacle on one side
26 Installation space dimensions A and B for air ducts
    insulated in position with firm obstacle on two
    sides
27 Installation space dimensions A and B for air ducts
    insulated in position with a firm obstacle on three
    sides
28 Installation space dimensions A and B for air ducts
    insulated in position with a firm obstacle on four
    sides
29 Installation spaces for air ducts not insulated or
    insulated before installation
30 Installation spaces for air ducts insulated after
    installation
Index