viscosimeter

The viscosity is determined by the rate of efflux through a small orifice. In one form of this apparatus the oil to be tested is placed in an inner vessel, the cover of which is lined with a thick pad of non-conducting material. It is kept at a temperature of 50° C. by means of a water-jacketand the coil is heated by a spirit-lamp. The volume of oil which flows through a central orifice, in the bottom of the inner vessel, in a given time, indicates the degree of viscosily.

An apparatus for measuring the viscosity of various liquids, as oils. Also viscometer.

An instrument for measuring the degree of viscosity of liquids, as solutions of gum.

a viscometer

a measuring instrument for measuring viscosity