Rheometry refers to a set of standard techniques that are used to experimentally determine
rheological properties of materials (fluid or solid). The idea underpinning rheometry is to realize
flows, where the stress and/or strain fields are known in advance, which makes it possible to
deduce rheological properties from measurements of flow properties. A rheometer is usually an
engine, which can exert a torque/force on a material and accurately measures its response with
time (or conversely, it can impose a strain and measures the resulting torque). In this chapter,
we start with a presentation of how a rheometer operates and how measurements can be used
to infer the rheological properties of the material tested. Then, the experimental procedures and
the typical behaviors observed are reviewed. Emphasis is also given to providing a general view
on issues encountered in rheometry, either because of rheometer limitations or as a result of
disturbing phenomena in the material tested