Estimating Janka hardness from specific gravity for tropical and temperate species
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Author
Contributions
- Green, David W. 1944- - Contributor
- Forest Products Laboratory (U.S.) - Contributor
Publication
2007 - U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory, Madison, WI, Wisconsin
Language
English
Word Count
5,250 words, Guess
Page Count
21 pages
Identifiers
- OCLC Control Number180923250
- Open LibraryOL16153940M
Description
Using mean values for basic (green) specific gravity and Janka side hardness for individual species obtained from the world literature, regression equations were developed to predict side hardness from specific gravity. Statistical and graphical methods showed that the hardness-specific gravity relationship is the same for tropical and temperate hardwoods, but that the relationship for softwoods is different from that for hardwoods. As expected, the relationship for green wood is different from that for wood at 12% moisture content.
Series Statement
- Research paper FPL-RP -- 643.
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