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Author Topic: Measuring pH of reverse osmosis's water  (Read 194 times)

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Fakes

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Measuring pH of reverse osmosis's water
« on: February 04, 2019, 10:14:31 PM »

I know that it should be acidic. But when i am measuring it in 2 different bench pH meters the result is 9 (in both) and when i measure it using a pH paper strip it is around 6. Any ideas?
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chenbeier

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Re: Measuring pH of reverse osmosis's water
« Reply #1 on: February 04, 2019, 11:45:38 PM »

A pH probe needs conductivity. DiI-water or reversd osmoses water cannot measured like this. You have to add a little bit NaCl or other neutral salt to the water and measure again.
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