In the case of rotary viscometers, the viscosity specification only applies to Newtonian fluids. In the case of capillary viscometers and ball viscometers, it is necessary to carry out the evaluation of the viscosity measurement according to the standards. 114, preferably each viscosity determination should be carried out at a temperature of 20☌ and at another temperature about 20☌ higher: two determinations are made at each temperature. 114 are carried out using five different methods:Īccording to OECD no. Viscosity measurements according to OECD test No. To measure the viscosity of non-Newtonian liquids, a rotary viscometer should be used. The liquids in question concern all those that comply with Newtonian laws.
114 is a guideline for describing methods to measure the viscosity of liquids.
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