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    ISSN: 1436-736X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Gloeophyllum trabeum, Poria placente, Trametes versicolor, Irpex lacteus, Pleurotus ostreatus, Chaetomium globosum und Phialophoria species. Holzproben der Abmessung wurden unter Druck bis zu verschiedenen Kupferkonzentrationen zwischen 0,48 und imprägniert. Mit der wässirgen Emulsion wurden bei einer Kupferkonzentration von ähnliche Schutzwirkungen erzielt wie mit auf Olbasis oder Gesamtoxid bei CCA-C-Schutzmitteln. Im Falle des Braunfäulepilzes P. placenta war eine höhere Kupferkonzentration (um nötig. Nach Standard- Auswaschtests zeigte sich, daß die Proben 80 bis 90% der ursprünglich eingebrachten Kupfermenge zurückhielten. Die Menge des ausgelösten Kupfers steigt mit dem pH-Wert der Waschlösung.
    Notes: Quercus rubra ) and red maple (Acer rubrum) cubes pressure treated with water brone formulation of copper naphthenate were evaluated for resistance to attack by brown fungi Gloeophylleum trabeum (Pers. Ex Fr.) Murr. (Madison 617 ATCC 11539) and Poria placenta (Fr.) Cooke (Madison 698, ATCC 11538), white rot fungi Trametes versicolor (L. Ex FR.) Pilat (R-105 from Jeff Morrell), Irpex lacteus Fries (FP-105915 from Jeff Morrell) and Pleurotus ostreatus (Jacq. Ex Fr.) Kummer (ATCC 32237), and soft rot fungi Chaetomium globosum (ATCC 34152) and Phialophoria Sp. Wood samples measuring 19 by 19 by 19 mm were pressure treated to target copper retentions of (0.78 pcf), (0.61 pcf), (0.35 pcf), (0.30 pcf), (0.16 pcf), (0.075 pcf), (0.03 pcf). Data from laboratory soil block tests indicate that at (0.13 pcf) copper retention from water borne copper naphthenate, the protection is similar to that from a (0.10 pcf) elemental copper from oil borne copper nathenate or (0.45 pcf) total oxide from CCA-C. Higher copper levels are needed to protect against copper tolerant brown rot fungus P. placenta. Results from an American Wood Preserver’s Association standard leaching test indicate that waterborne copper naphthenate treated samples retained 80 to 90% the copper initially absorbed. The amount of leached copper increases with the pH of the leaching solution.
    Type of Medium: Electronic Resource
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