These 100 ml PYREX® conical centrifuge tubes have white graduations and are used in accordance with standard methods of testing for water and sediment in petroleum products.

Tubes are calibrated ‘to contain’. They are graduated upward from 0 to 0,5 ml in 0,05 ml intervals; from 0,5 to 2,0 ml in 0,10 intervals; from 2 to 3 ml in 0,20 intervals; from 3 to 5 ml in 0,50 intervals; from 5 to 10 ml in 1,0 intervals; from 10 to 25 ml in 5.0 intervals; from 25 to 100 ml in 25.0 intervals.