COVID-19: Econotech has been declared an "essential supplier of services to essential businesses". As such we are operating as usual within the public health restrictions. We do not foresee any issue which would cause this to change, but will proactively notify our clients immediately in the event that it does. To view Econotech's WorkSafe compliance COVID-19 operating policies, click here.   (Nov 2020)

Schopper Riegler Freeness Tester


Do you get requests for SR freeness values?

If so, we have the Schopper Riegler freeness tester at your service.


The rate of drainage can be related to the work done on fiber
during beater and refining.

  • A drainage of 1000 mL corresponds to 0 SR
  • A drainage of 0 ml corresponds to 100 SR

Testing done in accordance with ISO 5267/1.



Call Sandra Fodor at 604-529-2814

Email [email protected]