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Comparison of standard procedures for estimation of biocides leaching from impregnated wood

Boštjan Lesar and Polonca Kralj and Daniel Žlindra and Vesna Kancilija and Miha Humar (2008) Comparison of standard procedures for estimation of biocides leaching from impregnated wood. Zbornik gozdarstva in lesarstva (86). pp. 59-64. ISSN 0351-3114

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    Leaching of active ingredients from impregnated wood is one of the most frequently applied criteria for assessing the suitability of impregnated wood to be used in outdoor applications. For this purposes, several standard and nonstandard procedures are applied. Within the framework of this research, leaching of copper and boron compounds from wood, impregnated with four different wood preservatives, were compared: (a) aqueous solution of copper sulphate, (b) commercial copper-ethanolamine based solution Silvanolin, (c) aqueous solution of boric acid and, (d) combination of boric acid and montanic wax emulsion. Pressure impregnated specimens were afterwards leached according to the three different standards: SIST EN 84, SIST EN 1250 and OECD recommendation. The highest portion of leached biocides were determined according to the SIST EN 84 procedure, the lowest portion according to OECD recommendation. All three methods applied, however give us the same ranking of wood preservatives regarding the amount of emitted active ingredients.

    Item Type: Article
    Keywords: copper ingredients, boron ingredients, ethanolamine, leaching, montan wax, Norway spruce wood, fixation in wood
    Link to COBISS: http://www.cobiss.si/scripts/cobiss?command=SEARCH&base=COBIB&select=ID= 2311334
    Divisions: Biotechnical Faculty, Department of Wood Technology > Working group for wood pathology and preservation
    Slovenian Forestry Institute > Department of Forest Ecology
    Item ID: 187
    Date Deposited: 07 Feb 2014 12:24
    Last Modified: 07 Feb 2014 12:24
    URI: http://eprints.gozdis.si/id/eprint/187

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