Osmotic Effect; Troubleshooting - UMS T5 User Manual

Troubleshooting

6.5 Osmotic effect

The ceramic has a pore size of r = 0,3 m and therefore cannot block
ions. Thus, an influence of osmosis on the measurements is
negligible because ion concentration differences are equalized
quickly. If the T5 cup is dipped into a saturated NaCl solution the
reading will be 1 kPa for a short moment, then it will drop to 0 kPa
again.
7 Troubleshooting
Please refer to our webpage where you will find a regularly up-dated
list of FAQs:
http://www.ums-muc.de/en/support/faq/tensiometer.html
39/48