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): Michael J. Birkeland; Linda Lorenz; James M. Wescott; Charles R. Frihart
    Date: 2010
    Source: Holzforschung. Vol. 64, no. 4 (June 2010): p. 429-433.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (195.72 KB)


    Hot-pressing wood, particularly in the production of wood composites, generates significant ‘‘native’’ (wood-based) formaldehyde (FA), even in the absence of adhesive. The level of native FA relates directly to the time and temperature of hot-pressing. This native FA dissipates in a relatively short time and is not part of the long-term FA emission issue commonly associated with hydrolyzing urea-formaldehyde bonds. This paper demonstrates that the common desiccator/ chromotropic acid method is very specific for FA and is not influenced by other volatile compounds set free from wood during hot-pressing. Furthermore, it is shown that particleboard produces native FA at high levels even in the absence of adhesives or in the presence of one type of no-added formaldehyde (NAF) adhesive. Soy-based adhesives suppress native FA emission and provide low FA emission levels in both the short and long term. This study highlights an often overlooked aspect that should be considered for emission testing: standardizing the time and conditions employed immediately after pressing and prior to the onset of emissions testing. Addressing this issue in more detail would improve the reliability of correlation between data obtained by rapid process monitoring methods and emission measurements in large chambers.

    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.


    Birkeland, Michael J.; Lorenz, Linda; Wescott, James M.; Frihart, Charles R. 2010. Determination of native (wood derived) formaldehyde by the desiccator method in particleboards generated during panel production. Holzforschung. 64(4): 429-433.


    Google Scholar


    Adhesives, environmental analysis, formaldehyde emission, no-added formaldehyde (NAF) adhesive, soy-based adhesives, wood adhesion, formaldehyde, particle board, heat treatment, soy flour, soybean glue, temperature, composite materials, hardboard, environmental monitoring, air pollution, measurement, desiccator method, bonding, chromotropic acid method, emissions, hot pressing, composite wood

    Related Search

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