by measuring rising or falling speed of the body; by measuring penetration of wedged gauges (G01N11/16 takes precedence)

Full Title

Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties > by moving a body within the material > by measuring rising or falling speed of the body; by measuring penetration of wedged gauges (G01N11/16 takes precedence)