Methods of analysis of wood preservatives and treated timber Qualitative analysis

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-01-1981

Publisher

British Standards Institution

Methods
1 Scope and field of application
2 References
3 Preliminary inspection of the sample
4 Qualitative tests on timber sections
5 Qualitative tests on extracts from treated timber and
preservative solutions
Appendix
A Differentiation of heartwood and sapwood in Pinus
species
Tables
1 RF values
2 Detection limits
Figures
1 The Stahl oven
2 Apparatus for qualitative arsenic determination

Preliminary tests on treated timber and tests on extracts; differentiation of heartwood and sapwood in $7IPinus$7R species.

This Part of this British Standard details procedures for the detection of preservative materials commonly found in organic solvent type and water-borne type preservative solutions and in preservative-treated wood. The complex nature of the tar oil type preservatives precludes the use of a specific qualitative test for this group, although some indication of their presence may be provided by odour and appearance characteristics.

The procedures described in this Part will frequently be applied before carrying out quantitative analyses using methods described in other Parts of this standard. Two types of qualitative test are described, those carried out directly on timber sections and those requiring prior preparation of an extract from the timber sample. Some preservative materials can be detected by either type of method, others by only one of them. In addition to the detection of preservative materials, the spray tests described may be used to estimate the penetration of the preservatives.

Although these tests have been validated for the types of preservative in current use, the introduction of new materials could give rise to difficulties and analysts should be alert to this possibility.

Committee	B/515
DevelopmentNote	Supersedes 79/53081 DC (08/2005) Reviewed and confirmed by BSI, November 2008. (11/2008)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current

BS 1990-1:1984	Wood poles for overhead power and telecommunication lines Specification for softwood poles
BS 4072-2:1987	Wood preservation by means of copper/chromium/arsenic compositions Method for timber treatment
BS 5589:1989	Code of practice for preservation of timber
BS 5268-5:1989	STRUCTURAL USE OF TIMBER - CODE OF PRACTICE FOR THE PRESERVATIVE TREATMENT OF STRUCTURAL TIMBER

BS 3978:1966	Specification for water for laboratory use
BS 507(1966) : LATEST
BS 5666-1:1978	General considerations and sampling and preparation of materials for analysisMethods of analysis of wood preservatives and treated timber

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BS 5666-2:1980

Methods of analysis of wood preservatives and treated timber Qualitative analysis

Table of Contents

Abstract

Scope

General Product Information

Standards Referenced By This Book

Standards Referencing This Book

Category

Subcategory