This report describes the test protocols for liquid properties measurements in microfluidic devices for use in pharmaceuticals, biomedical and mechanobiology applications and the results obtained for specific examples like density, viscosity and refractive index. Activity number Activity description Partners (Lead in bold) A2.3.5 M25 Using input from A2.1.3 and A2.3.1-A2.3.4, RISE with support from IPQ, CETIAT, HSG‑IMIT, TUBITAK and CMI will write a technical report on test protocols for liquid properties in microfluidic devices. The report will include example of application. Once agreed by the consortium, the coordinator on behalf of RISE, IPQ, CETIAT, CMI, TUBITAK and HSG-IMIT will submit the report to EURAMET as D4: ‘Report on test protocols for liquid properties in microfluidic devices for use in pharmaceuticals, biomedical and mechanobiology applications’. RISE, IPQ, CETIAT, CMI, HSG‑IMIT, TUBITAK