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Article: Chemical answers to the sorting of commercial woods in Canada.
- Article from:
- Canadian Chemical News
- Article date:
- July 1, 1993
- Author:
CopyrightCOPYRIGHT 1993 Chemical Institute of Canada. 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)
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Anatomical microscopic identification can support chemical sorting to provide a more accurate method
The most commonly cut mixed species in Canada is called SPF. In the east, the S stands for black spruce, the P for jackpine, and the F for balsam fir. In the interior of BC, the SPF cut is composed of S for white spruce, P for lodgepole pine, and F for sub-alpine fir. Species from coastal BC are amabilis fir, Douglas fir, and western hemlock. Also, a Douglas fir/western larch mix is cut in the interior, but it is not a large one.
There are several commercial reasons for sorting SPF. Some have higher values if they are sorted as furniture stock. The F are ...