ポータブルの容積計
1958 年 27 巻 11 号 p. 683-685
詳細
1958 年 27 巻 11 号 p. 683-685
For measuring the true density of porous, granular, powdery or water soluble solid material, a portable volumeter has been devised. A metallic bellows, which contains a piece of sample and issealed with a plate lid, is compressed from outside by rotating a micrometer screw head. From the pressure change measured by a metallic diaphragm sensitive manometer and the volume change read by the screw head advance, the unoccupied volume can be determined. Cares to be taken when operating the instrument are discussed and examples of measurement are shown.
