Photographic Guide of Selected External Defect Indicators and Associated Internal Defects in White Oak
Everette D. Rast · John A. Beaton · David L. Sonderman
Jan 1989 · U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station
Ebook
24
Pages
About this ebook
S2To properly classify or grade logs and trees, one must be able to correctly identify defect indicators and assess the effect of the underlying defect on possible end products. This guide assists the individual in identifying the surface defect indicator and also shows the progressive stages of the defect throughout its development for white oak. It illustrates and describes nine types of external defect indicators and associated defects that are particularly difficult to evaluate. S3.
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