BS DD239(1998) : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
RECOMMENDATIONS FOR PRESERVATION OF TIMBER
Hardcopy , PDF
06-13-2003
English
01-01-1998
Committees responsible
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Use of these recommendations
Annex A (normative) Timber components grouped according
to service environments
Annex B (informative) Decision process for using preservative
treatment
Annex C (informative) Design factors in Table 9
Bibliography
Table 1 Service factors based on safety and economic
considerations
Table 2 Natural durability recommendations for timber
components
Table 3 Summary of penetration classes and analytical zones
for determination of retention in accordance with
BS EN 351-1
Table 4 Treatment recommendations for copper/chromium/arsenic
(CCA) preservatives conforming to BS 4072-1
Table 5 Treatment recommendations for creosotes conforming
to BS 144
Table 6 Treatment recommendations for organic solvent-based
preservatives conforming to BS 5707
Table 7 Treatment recommendations for aqueous solutions
of boron compounds applied by diffusion to
green timber
Table 8 Treatment recommendations for aqueous solutions
of boron compounds applied to dry timber
Table 9 Treatment recommendations for preservatives for
which an appropriate CV as described in
BS EN 599-1 is available
Table A.1 Examples of timber components within each component
group listed in Table 2 and Tables 4 to 9
Table B.1 Stages of the decision process for using wood
preservative treatment
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