instrument is used for determination and checking of bitumen percentage in bituminous
mix, the mix is added with a solvent and dissolved bitumen is removed by centrifugal
action. Consists of a removable aluminum rotor bowl, capacity 1500 gms. This shaft
and thus the bowl is rotated fast manually by enclosed gears in the cast body
and handle. Solvent is introduced during the test through the holes in the cap
of the housing. A drain is provided to collect dissolved bitumen coming out of
the rotating bowl and getting collected in the housing.