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Hardness Tester for Mastic Asphalt

Hardness Tester for Mastic Asphalt


IS: 1195

For determining the hardness number of mastic asphalt for flooring.

It consists of an internally insulated cabinet to the base of which is fitted a water bath having two taps. The bath is heated by an immersion heater and the temperature is controlled with a thermostat at 35°+/- 0.5°C. A 6.35 mm dia pin is loaded on the specimen by means of a lever to give 31.7 kg. Weight. A dial gauge 0.01 mm x 25 mm is provided to record the penetration of pin into the specimen.