7 水排除法による木材物質の密度測定に関する研究(第1報)
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According to the previous experiment by the water displacement method, the value of the apparent density of wood substance has been determined to be average 1.56. While Dr. T. Nagasawa reported 1.60 for the average value of 35 species using Dr. Yoshida's method. Employing Dr. Yoshida's method, I also performed the measurement of the apparent density using some species in Kyushu, and obtained the result of Table 1. From Table. 1,We can understand that the value of the apparent density is affected by the temperature of water as the displacement media, and the value decreases with the increase of temperature. Therefore, the result of the apparent density measured by the water displacement method should be showed with the temperature of water as the displacement media.
- 一般社団法人日本森林学会の論文
- 1951-01-25
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- 7 水排除法による木材物質の密度測定に関する研究(第1報)