Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Stan T. Lebow
    Date: 2001
    Source: Proceedings : Ninety-seventh Annual Meeting of the American Wood-Preservers' Association ... Minneapolis, Minnesota, May 20-23, 2001. Granbury, Tex. : The Association, c2001: Pages 54-60
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (163 KB)


    As part of an effort to ensure that treated wood products have minimal environmental and handling concerns, an American Wood Preservers Association task force is considering the development of a test to assess the degree of fixation of Waterborne wood preservatives. The proposed test involves removal and leaching of increment cores. This paper describes a laboratory study to determine how parameters such as extraction time, water volume, water temperature; depth of assay zone, and between sample variability might affect the results of such a test for chromated copper arsenate (CCA) treated wood. The results suggest that an extraction time of 4 hours would be sufficient if chromium is the element of interest. Water volume did not appear to be a concern for chromium or copper, but may be for arsenic. Leaching was affected by water temperature, suggesting that the test should incorporate temperature limitations. Depth of assay zone and location of core removal along the board did not have a great effect, especially for chromium, but this test only used cores that were fully penetrated with preservative. Because the amount of chromium leached underwent the greatest change during fixation, and because chromium leaching appears to be least affected by some of the test parameters, chromium appears to be the CCA element that is best suited for a fixation test. The low overall variability between samples indicates that this type of test could be conducted with the removal of relatively few increment cores.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Lebow, Stan T. 2001. Factors affecting the use of increment cores to assess fixation. Proceedings : Ninety-seventh Annual Meeting of the American Wood-Preservers'' Association ... Minneapolis, Minnesota, May 20-23, 2001. Granbury, Tex. : The Association, c2001: Pages 54-60


    Chromated copper arsenate, CCA, fixation, test, increment core, leaching, chromium, copper, arsenic

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page