| 摘要 |
<p>A dissolved oxygen reducing apparatus capable of supplying a liquid having an extremely small amount of dissolved oxygen. This dissolved oxygen reducing apparatus consists of a bubbling tank (24) having a liquid introduction port (21), a liquid discharge port (22) and an inert gas discharge port (23), an inert gas ejection nozzle (25) provided in the bubbling tank (24), and a liquid discharge pipe (26) joined to the liquid discharge port (22), an oxygen transmission coefficient of the bubbling tank (24) and liquid discharge pipe (26) at 25 °C being not higher than 10-9 cc.cm/cm2.sec.atm.</p> |
