Standard Tar Viscometer

The Standard Tar Viscometer is used specifically to determine the viscosity of tar and tar-based road binders by measuring the time taken for a fixed volume of tar, held at a specified test temperature, to flow through a standard orifice under gravity. It follows the same general principle as other efflux-type viscometers but uses an orifice and cup design standardised for tar products.

For determining the viscosity of cut back bitumen and road oil. The viscometer consists of a chrome plated copper bath, with a drain valve and a central tube to receive the test cup and to position the stirrer, and is mounted on a stand with levelling feet. Stirrer has a curved shield and is provided with an insulated handle, thermometer socket and swivel support for the valve.

Standard Tar Viscometer, 10 mm cup and ball valve Electrical Heating with Immersion Heating Elements and Dimmerstat for controlling the temperature. Complete with 10 mm Cup and Valve.

Standard Tar Viscometer, 4 mm cup and ball valve Electrical Heating similar to above, but with 4 mm Cup and Valve.

Suitable for operation on 220V, 50 Hz, single phase, AC supply.