Procedure

VN

Overview

This Technical Specification describes a laboratory method for the estimation of emissions from preservative treated wood in the case where the preservative treated wood is not covered by a physical protection and is in contact with the ground, fresh water or seawater. Emissions from the surface of the treated wood could enter the soil, fresh water or sea water. The method serves for obtaining water samples from treated wood in contact with water. The quantities of emissions determined in the leachate are related to the surface area of the wood and the length of exposure, to estimate a flux in milligrams per square metre per day. The quantity of emissions can be used in an environmental risk assessment of the treated wood. This document is a revision of Technical Specification DIN CEN/TS 15119-2:2008-09 in order to consider OECD Guideline 313 which covers the same topic. Compared to CEN/TS 15119-2:2008, the quality criteria for accuracy and reproducibility and provisions for properties of the sea water used for the test have been added. Furthermore the procedure for sealing of end grain has been specified in more detail. The time intervals for replacement of the water specified and total testing time have been increased from 19 days to 29 days. Information on extrapolation of results to 1 year or 10 years has been deleted. The recording forms in Annex A have been modified, Annex B for general recommendations has been added and the Bibliography has been extended. The committee responsible for this standard is NA 042-03-06 AA "Spiegelausschuss zu CEN/TC 38 und ISO/TC 165/SC 1 Dauerhaftigkeit von Holz und Holzprodukten" ("Mirror Committee of CEN/TC 38 and ISO/TC 165/SC 1 Durability of wood and wood-based products") at DIN.

Document: references other documents

Responsible national committee

NA 042-03-06 AA - Mirror committee for CEN/TC 38 durability of wood and wood products  

Responsible european committee

CEN/TC 38/WG 27 - Exposure Aspects