Indentation hardness tests were made on sections of 211 pieces
of Douglas fir and 208 pieces of Western hemlock at a moisture content
of about 11 percent. Specific gravity and visual-density evaluations
were also determined.
Correlation coefficients for linear regression of density, as
measured by specific gravity, on average standard hardness were
0.826 for Douglas fir and 0.842 for Western hemlock.
Classification according to specific gravity was better using
hardness classes compared to using visual-density classes. / Graduation date: 1967
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28150 |
| Date | 12 May 1967 |
| Creators | Corder, Stanley E. |
| Contributors | McMullen, William D. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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