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Return of conductivity after rinsing

2006

We rinse several 304 ss components in 416 liters of deionized water, until we reach 10 microsiemens. Then the vessel is sealed for 24 hours. When we open the vessel the conductivity has rebounded to 50 to 60 microsiemens. We experience this rebound no matter how many times we complete the rinse. Where are we getting this bounce?
Brad MacSwain
World Source Filtration Inc. - Sarnia, ON, Canada

2006

If I am correctly understanding what you are doing, I believe the 304 stainless is dissolving in the DI water sufficiently to raise the conductivity to the level you are observing.
Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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