BS 5589:1989

Foreword
Committees responsible
Code of practice
Section one. General introduction
1 Scope
2 Use of this code
3 Performance ratings
4 Design considerations
5 Means of protection
6 Preparation of timber before treatment
7 Properties of treated timber
8 Safety
9 Checking preservative treatment
Section two. External woodwork above the damp-proof
               course in buildings
10 General
11 Hazards
12 Performance
13 Timber species
14 Timber condition
15 Preservatives
16 Limitations of preservatives
17 Methods of application
18 Cutting after preservation
19 Painting preservative treated timber
Section three. Agricultural and horticultural timbers
20 General
21 Hazards
22 Performance
23 Timber species
24 Timber conditions
25 Preservatives
26 Limitations of preservatives
27 Methods of application
Section four. Timber for use permanently or
               intermittently in contact with sea or
               fresh water
28 General
29 Hazards
30 Performance
31 Timber species
32 Timber condition
33 Preservatives
34 Methods of application
Section five. Timber for use as packing in cooling
               towers
35 General
36 Hazards
37 Performance
38 Timber species, quality and condition
39 Preservatives
40 Methods of application
41 Waste disposal
Section six. Fencing timber
42 General
43 Hazards
44 Performance
45 Timber species
46 Timber condition
47 Preservatives
48 Limitations of preservatives
49 Methods of application
Section seven. Timber for use in prefabricated buildings
               for temporary use in termite infested
               areas
50 General
51 Hazards
52 Performance
53 Timber species
54 Timber condition
55 Preservatives
56 Limitations of preservatives
57 Methods of application
Section eight. Timber in timber frame housing
58 General
59 Hazards
60 Performance
61 Timber species
62 Timber condition
63 Preservatives
64 Methods of application
Tables
1 Schedule of preservative processes applicable to
    this British Standard
2 Hazard categories
3 Natural durability and treatability characteristics
    of selected timbers
4 Expected minimum sapwood retention of CCA treated
    timber
5 Preservative treatments for external woodwork in
    buildings above the damp-proof course (hazard
    category 3)
6 Timber for agricultural and horticultural purposes
    with heartwood sufficiently durable to be used
    without treatment
7 Preservative treatments for timber in contact with
    the ground, soil or manure; also those likely to
    become permanently wet (hazard category 4)
8 Preservative treatments for timber subject to
    intermittent wetting or damp conditions
9 Suitability of timber for use in water
10 Preservative treatment for timber for use in contact
    with water
11 Preservative treatments for European redwood timber
    for use in packing in cooling towers (hazard
    category 4)
12 Timber with heartwood sufficiently durable to be
    used for fencing without treatment
13 Determination of moisture content of timber to be
    treated for use in fencing
14 Preservative treatments for fencing timber in
    performance category A (desired service life of 40
    years)
15 Preservative treatments for fencing timber in
    performance category B (desired service life of 20
    years)
16 Preservative treatments for timber for use in
    buildings in termite infested areas (hazard category
    4 because of termite risk)
17 Preservative treatments for timber for use in timber
    frame housing

Recommendations for the preservative pre-treatment of, external woodwork in buildings above the damp proof course, agricultural and horticultural timbers, timber permanently or intermittently in contact with sea or fresh-water, cooling towers and fencing timber, timber in prefabricated temporary buildings in termite infested areas, timber in timber frame housing