|
|
Article: Comparison of fixation rates of earlywood, latewood, sapwood, and heartwood of CCA-treated Douglas-fir, southern pine, and eastern larch. (Solid Wood Products).(Statistical Data Included)
- Article from:
- Forest Products Journal
- Article date:
- May 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 Forest Products Society. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
P.A. Cooper *
J.N.R. Ruddick *
ABSTRACT
Fixation rates of chromated copper arsenate (CCA) type C wood preservative in earlywood, latewood (cut from sapwood), whole sapwood, and whole heartwood of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii), southern pine (Pinus spp.), and eastern larch (Larix laricina (Du Roi) K. Koch) were compared at 21 [degrees]C and 60[degrees]C and high humidity. Fixation was monitored by following the reduction of hexavalent chromium ([Cr.sup.VI]) in solution expressed from wood by centrifuge. [Cr.sup.VI] fixation rate was always significantly faster in more dense latewood than in earlywood in each ...
Related newspaper, magazine, and journal articles:
|
|
Article: Retranslocation of calcium and magnesium at the ...
Ecology;
March 1, 1995 ;
700+ words
... ... Ca and Mg concentrations in the inner sapwood were notably higher than those in the ... translocated to the younger, functional sapwood as heartwood is formed. The objectives ... diameter core was cut at the heartwood-sapwood boundary with a stainless steel blade ...
|
|