BS 5666-5:1986
Current
The latest, up-to-date edition.
Methods of analysis of wood preservatives and treated timber Determination of zinc naphthenate in preservative solutions and treated timber
Hardcopy , PDF
English
28-02-1986
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Methods
1. Scope and field of application
2. Method I. Atomic absorption spectrophotometric
method
3. Method II. Colorimetric method
4. Test report
Two methods: atomic absorption spectrophotometry and colorimetry using dithizone.
| Committee |
B/515
|
| DevelopmentNote |
Supersedes 84/55183 DC (08/2005) Reviewed and confirmed by BSI, November 2008. (11/2008)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This Part of BS 5666 describes procedures for the determination of zinc naphthenate, expressed as zinc, in preservative solutions and in treated timber. Two methods are described: an atomic absorption spectrophotometric method and a colorimetric method.
Both methods have been found suitable for the determination of zinc naphthenate in the presence of tributyltin oxide, pentachlorophenol, o-phenylphenol, monochloronaphthalene, polychloronaphthalene, gamma-HCH (gamma-BHC)1), dieldrin1), copper naphthenate, water-repellent waxes and resins.
The procedures described have been primarily designed for the analysis of preservative formulations complying with BS 5707-1. For samples of other compositions it may be necessary to make adjustments in the quantities taken for analysis.
The timber sample for analysis may be in the form of sawdust, wood flour or thin sections.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
CAUTION. Attention is drawn to the general safety precautions mentioned in clause 4 of BS 5666-1:1978.
| BS DD257-5(2003) : 2003 | METHODS OF ANALYSIS OF WOOD PRESERVATIVES AND TREATED TIMBER - PART 5: DETERMINATION OF CARBOXYLIC ACID TYPE IN ZINC AND COPPER CARBOXYLATE PRESERVATIVE SOLUTIONS BY GAS CHROMATOGRAPHY |
| BS 3978:1966 | Specification for water for laboratory use |
| BS 135; 458; 805:1977 | Specifications for benzene, xylenes and toluenes |
| BS 700-2:1982 | Graduated pipettes Specification for pipettes for which no waiting time is specified |
| BS 1831:1969 | Recommended common names for pesticides |
| BS 5707-1:1979 | Solutions of wood preservatives in organic solvents Specification for solutions for general purpose applications, including timber that is to be painted |
| BS 846:1985 | Specification for burettes |
| BS 245:1976 | Specification for mineral solvents (white spirit and related hydrocarbon solvents) for paints and other purposes |
| 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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