| 摘要 |
PROBLEM TO BE SOLVED: To provide a purification means by which the absolute quantity of gaseous oxygen or the like present in the inside part including a test body or a part where a replaceable part is attached is directly reduced in a high temperature high pressure loop having a test part necessary for frequently changing the test body or a section necessary for frequently changing the replaceable part. SOLUTION: In the high temperature high pressure loop, the inside of the test body or the replaceable part is evacuated through an exclusive pipe line after the change of the test boy or the replaceable part and when a prescribed degree of vacuum is attained, the evacuation is stopped and an inert gas is ejected into the inside of the test body or the replaceable part. After a prescribed quantity of inert gas is injected, purified water is injected to the inside of the test body or the replaceable part and circulated through a small-sized purification loop to purify the test body or the replaceable part. COPYRIGHT: (C)2004,JPO&NCIPI
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