BS 144:1997
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for coal tar creosote for wood preservation
Hardcopy , PDF
28-03-2022
English
15-07-1997
Important note : Users cannot be edited or removed once added to your Multi user PDF.Requirements for four types of coal tar creosote for wood preservation. Some test methods are included together with guidance on the methods of treatment of timber.
| Committee |
B/515
|
| DevelopmentNote |
Supersedes 96/120287 DC, BS 144-1(1990) & BS 144-2(1990). (04/2003) Reviewed and confirmed by BSI, December 2009. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| Supersedes |
This British Standard specifies requirements for four types of coal tar creosote for wood preservation. Type 1 creosote is intended for treatment of timber by pressure impregnation.
Type 2 creosote is also intended for pressure impregnation, but has a more closely defined distillation range and a more restricted residue content than creosote of type 1. Type 2 creosote is especially suitable for treatment of poles for overhead power and telecommunication lines, and for structural timbers where bleeding in service could present a problem.
Type 3 creosote is intended for treatment of timber by immersion and brushing.
Type 4 creosote is intended for treatment of timber by pressure impregnation at temperatures > 100 °C. This creosote excludes the lower boiling fractions allowable in the other three creosote types and is especially suitable where volatility leading to odour is a problem.
NOTE. Creosote of types 1, 2 and 3 may be used for the hot-and-cold open tank process.
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