Conductivity to TDS conversion

1152 Views 3 Replies 2 Participants Last post by Darkblade48, Mar 31, 2014

sleepswithdafishez

Discussion Starter · Mar 30, 2014

If my tap water has conductivity = 676 μScm-1 ,do I multiply this by 0.67 ,to get the TDS value?Does this mean that I have 452.92 TDS?

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Darkblade48

· #2 · Mar 31, 2014

The conversion is 0.676, but yes, you can go from microsiemens to ppm in that manner.

Here is a calculator:

http://www.lenntech.com/calculators/conductivity/tds-engels.htm

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sleepswithdafishez

Discussion Starter · #3 · Mar 31, 2014

Darkblade48 said:
The conversion is 0.676, but yes, you can go from microsiemens to ppm in that manner.

Here is a calculator:

http://www.lenntech.com/calculators/conductivity/tds-engels.htm

Thanks.I took the value of EC = 676 μScm-1 ,from my water company chart.It said "at 20 degrees C".......while most of the conversions and measurements ,as far as I saw online ,are performed at a temp of 25 degrees C.

Is there a big difference?

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Darkblade48

· #4 · Mar 31, 2014

sleepswithdafishez said:
Thanks.I took the value of EC = 676 μScm-1 ,from my water company chart.It said "at 20 degrees C".......while most of the conversions and measurements ,as far as I saw online ,are performed at a temp of 25 degrees C.

Is there a big difference?

I don't think there would be a big difference. I believe that conductivity is not influenced by temperature (though I could be wrong).

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