To provide a method and an apparatus capable of detecting whether water used as a coolant corrodes piping made of copper or copper alloy in a short term.
A specific agent is added to water 1 for determining the presence or absence of corrosiveness by using a test electrode 2 made of copper or a copper alloy, a counter electrode 3, a reference electrode 4, and a constant-current supply 5 before the potential difference between the test and reference electrodes when a constant current flows is measured by an electrometer 6. Or, the specific agent is added to the water for determining the presence or absence of corrosiveness by using the test electrode made of copper or a copper alloy, the counter electrode, the reference electrode, and the constant-current supply before the current value between the test and counter electrodes when a constant voltage is applied between the test and counter electrodes is measured.
MIYA KAZUHIRO
Kei Saki
Fumio Akiyama
Hiromu Tanaka
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