 | 1927 - 372 páginas
...color except in pieces having more than one-half summer wood. In cases where timbers do not contain pith, and it is impossible to locate it with any degree of accuracy, same inspection shall be made over 3 inches in an approximate radial line beginning at the edge nearest... | |
 | United States. National Bureau of Standards - 1927 - 368 páginas
...color except in pieces having more than one-half summer wood. In cases where timbers do not contain pith, and it is impossible to locate it with any degree of accuracy, same inspection shall be made over 3 inches in an approximate radial line beginning at the edge nearest... | |
 | 1928 - 1476 páginas
...shall be at least one-half. The contrast in color between summer wood and spring wood shall be aharp and the summer wood shall be dark in color, except...the pith, and it is impossible to locate it with any degiee of accuracy, the same inNpection shall be made over 3 inches on any approximate radial line... | |
 | Wisconsin. State Highway Commission - 1931 - 300 páginas
...growth shall be counted over the third, fourth, and fifth inches from the pith along the radial line. In cases where timbers do not contain the pith, and...of accuracy, the same inspection shall be made over three inches on an approximate radial line beginning at the edge nearest the pith in timbers over three... | |
 | Wisconsin. State Highway Commission - 1941 - 912 páginas
...In cases where material does not contain the pith, the same inspection shall be made over 3 inches on an approximate radial line beginning at the edge nearest the pith in pieces over 3 inches in thickness and on the second inch nearest the pith in pieces 3 inches or less... | |
 | 1915 - 840 páginas
...will be accepted provided the amount of summer-wood as above measured shall be at least 50 per cent. In cases where timbers do not contain the pith, and...of accuracy, the same inspection shall be made over three inches on an approximate radial line beginn ing at the edge nearest the pith. The radial line... | |
 | American Railway Engineering Association - 1916 - 1670 páginas
...will be accepted, provided the amount of summerwood a? above measured shall be at least 50 per cent. In cases where timbers do not contain the pith, and...of accuracy, the same inspection shall be made over three inches on an approximate radial line, beginning at the edge nearest the pith. The radial line... | |
 | American Railway Engineering Association - 1919 - 1110 páginas
...be dark in color, except in pieces having considerably above the minimum requirement for summerwood. In cases where timbers do not contain the pith, and...of accuracy, the same inspection shall be made over three inches on an approximate radial line beginning at the edge nearest the pith in timbers over three... | |
 | American Society for Testing and Materials - 1916 - 1148 páginas
...will be accepted provided the amount of summer wood as above measured shall be at least 50 per cent. In cases where timbers do not contain the pith, and...of accuracy, the same inspection shall be made over three inches on an approximate radial line beginning at the edge nearest the pith. The radial line... | |
 | American Railway Engineering Association - 1916 - 1476 páginas
...be dark in color, except in pieces having considerably above the minimum requirement for summerwood. In cases where timbers do not contain the pith, and...any degree of accuracy, the same inspection shall be •The wood samples and data are furnished through the courtesy of the 1'nited PtatPs Forest Service.... | |
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In cases where timbers do not contain the pith and it is impossible to locate it with any degree of accuracy, the same inspection shall be made over 3... 
