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RS EAS 325: 2024
Wood preservatives and treated timber — Guide to sampling and preparation of wood preservatives and treated timber for analysis

Abstract

1.1 This East African Standard gives guidance on the general procedures to be followed in the sampling and
preparation of preservatives and preservative-treated timber for analysis.
1.2 This standard is applicable to the provision of appropriate samples for analysis which may be used to
check the content of active components in preservative formulations, and to determine the identity, location
and concentration of preservatives in treated timber. The techniques described may be employed in a wide
variety of applications ranging from laboratory research through to the checking of preservatives or
preservative-treated timber for arbitration purposes. In most cases it is possible, by chemical analysis, to
determine whether or not a sample of timber has received a preservative treatment and the results can often
give an indication of the type of treatment the wood has received when due consideration is given to other
relevant factors, such as timber species and heartwood/sapwood ratio, in the samples under test.
1.3 This standard does not provide detailed procedures to be adopted for control purposes at manufacturing
plants where large volumes of preservative are to be sampled.
1.4 This standard does not define any detailed methodology to be followed in operations in these areas
because this can depend upon the nature of the preservative, the method of treatment, and the particular
requirements of relevant approval authorities.

General Information

Code	Classification	Theme	Pages	Publisher	Availability
RS EAS 325: 2024	EAST AFRICAN STANDARDS	wood technology	20	Second Edition Sep 2024	Available