有機微量分析の研究 (第8報)
炭水素分析に於ける新型直読式流量計に就て
1953 年 73 巻 9 号 p. 907-911
詳細
1953 年 73 巻 9 号 p. 907-911
Gas flow meter fitted with an injection needle as a semi-variable capillary tube described herein is shown in Fig. 1. The simplicity for the exchange of capillary tube and compactness of its whole structure offer many advantages in carbon and hydrogen determinations; e.g. wide range of flow rate, saving of the space of apparatus, and easy handlings, in addition to rapid and accurate reading. The suitable dimensions of capillary tube are to be determined by the nomograph shown in Fig. 3, which was calibrated from Poiseuille's equation.
