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Experimental testing of the recommended EEC (1977) standard on the specifications for grading sawn timber according to strength



Experimental testing of the recommended EEC (1977) standard on the specifications for grading sawn timber according to strength



Derevoobrabatyvayushchaya Promyshlennost' (7): 5-7



Regressions of bending strength on MOE or knot projection area were determined separately for 4 different cross-sectional assortments of Scots pine and Norway spruce lumber. The MOE as measured by 'Computermatic' stress-grading equipment did not account for more than 30% of the variation in breaking strength. Knot-based estimates were no better, but the combined use of both improved the correlation coefficient.

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Accession: 000885215

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