scope:

Specifies the general principles of a method, using an inclined-tube falling-ball viscometer, for determining the viscosity of polymers and resins in the liquid emulsified or despersed state. It is intended for application to liquids over a viscosity measurement range of 0,6 mPa.s to 250000 mPa.s (temperature range -20°C to + 120°C) for which the shear stress and shear rate are proportional, i.e. the viscotity is independent of the shear rate. This ideal behaviour is commonly known as Newtionian behaviour. If a liquid differs significantly from this behaviour, different results may be obtained with the different balls of a falling-ball viscometer or from viscometers with different geometries, such as capillary and rotational viscometers.