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BSI BS 144:1997

Specification for coal tar creosote for the preservation of timber
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BSI BS 144:1997

Specification for coal tar creosote for the preservation of timber

PUBLISH DATE 1997
PAGES 28
BSI BS 144:1997

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.

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.
SDO BSI: British Standards Institution
Document Number 144
Publication Date July 15, 1997
Language en - English
Page Count
Revision Level
Supercedes
Committee B/515
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