PCE-RVI 5 is a Krebs viscometer or Stormer viscometer used in industrial and research applications to measure Krebs Unit viscosity according to the ASTM D562, ASTM D1131 and ASTM D856 standards. Featuring a unique automatic test mode for reliable, consistently repeatable and reproducible test results, this Krebs Stormer viscometer displays measurements in Krebs Units (KU), grams (g) and centipoise (cP). Used in the testing, development, manufacture and quality control of paints, coatings, lacquers, varnishes, adhesives, pastes, and liquid inks.

- Rotational speed: 200 rpm
- Viscosity range: 40.2 ... 141.0 KU / 32 ... 1,099 g / 27 ... 5,274 cP (mPa.s)
- Accuracy: ±1 % full scale (FS)