Test conducted to analyze corrosion

The Boil Test requires that the instruments should be scrubbed using soap and warm water, rinsed thoroughly in hot water, then dipped in 95% Ethyl Alcohol. It should then be in boiling distilled water, in a glass or ceramic beaker for at least 30 minutes, and subsequently allowed to cool in the distilled water.The Military Specification requires that it be cooled in the distilled water for 24 hours, at which time it should be examined. ISO requires that the metal be removed from the distilled water after boiling for thirty minutes, then remain in air 2 hours prior to examination.

In the interpretation of the test, the ISO draft states “The instrument shall be wiped with a dry cloth, and inspected for visible signs of corrosion. Any blemish not removed by vigorous hand rubbing with a cloth, shall be considered evidence of corrosion.