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1. Measurement methods
1.1 Shear viscosity measurement
This measurement is mainly carried out using capillary viscometers, rotary instruments (with different geometries) or ball droppers. Various other devices are also used, but less frequently; moreover, it is not always clear that they measure shear viscosity per se. Whatever the basic geometry, the fundamental equations assume laminar flow and non-slip fluid at the wall. A 2013 article reviews how to detect slip and fracturing phenomena in the sample, and techniques for remedying them or making corrections to measurements .
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Measurement methods
Description of some commercial devices
Bibliography
Standards and norms
Standards cited (non-exhaustive list)
- Méthode d'essai standard pour la viscosité cinématique des liquides transparents et opaques (et calcul de la viscosité dynamique). ASTM - ASTM D445 - 2019
- Méthode d'essai standard pour les débits de fusion des thermoplastiques par plastomètre d'extrusion - ASTM D1238 - 2020
- Viscometry – Viscosity measurement using the Hoeppler falling ball viscometer. - DIN...
Events
Annual Congress of the French Rheology Group : http://www.legfr.fr
Annual European Rheology Conference (AERC), held every year except the year of the international congress: http://www.rheology-esr.org
International Conference of rheology, held...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
The list is given for guidance only, given the rapid evolution of the sector.
Adamel Lhomargy (TMI Group): http://www.testingmachines.com
Agilent Technologies : https://www.agilent.com/
...
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