Do I have to discard the sample after measuring? March 09, 2022 14:50 Updated Yes.In order to avoid the risk of contamination, discard your sample after the measurement. Further questions? Contact us via email@example.com. Related articles What do I have to do after I finished my measurements? After switching EasyDens on, I can hear a high-pitched whistle. Is my instrument defective? Do I have to check EasyDens regularly? How do I check that EasyDens is operational?