Reverse Flow Viscometers

PSL Rheotek Reverse Flow viscometers/tubes are designed for measuring opaque samples. Residual fuel oil or used oil belong to this category. The use of these tubes requires some skill as they are volume dependent. In this categorie there are the following viscometers available:  U-Tube Reverse Flow Viscometers;  Cannon-Fenske Opaque;  Zeitfuchs Cross-Arm;  Shell Pattern Reverse Flow.