MOKUZAI HOZON (Wood Protection)
Online ISSN : 1884-0116
Print ISSN : 0287-9255
ISSN-L : 0287-9255
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Volume 31, Issue 6
Displaying 1-6 of 6 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 31 Issue 6 Pages 248-251
    Published: November 25, 2005
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.248
    JOURNAL FREE ACCESS
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  • Measurement of aerial concentrations of components of a wood preservative for pressure process
    Michiyo AZUMA, Norio ISODA, Yuji KUBO, Yoko HIKITA
    2005 Volume 31 Issue 6 Pages 252-260
    Published: November 25, 2005
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.252
    JOURNAL FREE ACCESS
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    Benzalkonium chloride (BKC) and copper are the main components used in a preservative treatment of wood by pressure process. We examined the simultaneous extraction of both materials and the methods of analysis. Air was passed through an impinger using purified water as an absorber. Levels of BKC were analyzed using high performance liquid chromatography, and levels of copper were measured using ICP optical analysis. Surveys were conducted on four houses built using lumbers treated with the preservative. This measurement method was found to have considerable validity. Concentrations of the relevant compounds were found to be very low; it seems reasonable to conclude that the possibility of air contamination due to the presence of compounds volatilized from the lumber is small. It is necessary to cool the impinger when it is estimated that the absorber has evaporated.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    2005 Volume 31 Issue 6 Pages 261-266
    Published: November 25, 2005
    Released on J-STAGE: December 08, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.261
    JOURNAL FREE ACCESS
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    Durability of some fast-growing hardwoods was investigated by field stake tests at Asuka field test site in Nara prefecture. The installed woods were Paraserianthes falcata, Gmelina arborea L., Eucalyptus deglupta Bl., Eucalyptus obliqua L'Herit. and Eucalyptus delegatensis. The stakes sized 30×30×600 (L) mm were set in the ground in an upright position with about half of their length. On the basis of inspection of biodegradation at ground line, both sapwood and heart-wood of Paraserianthes falcata were classified into "perishable", those of Gmelina arborea L. were "durable", and heartwood of Eucalyptus deglupta Bl., Eucalyptus obliqua L'Herit. and Eucalyptus delegatensis were "non -durable".
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 31 Issue 6 Pages 267-270
    Published: November 25, 2005
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.267
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 31 Issue 6 Pages 271-274
    Published: November 25, 2005
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.271
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    2005 Volume 31 Issue 6 Pages 275-279
    Published: November 25, 2005
    Released on J-STAGE: May 22, 2009
    DOIhttps://doi.org/10.5990/jwpa.31.275
    JOURNAL FREE ACCESS
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