Centrifugal Tube is used for the determination of content of solid particles in inspection medium for magnetic particle examination. The concentration of particles in the suspension is a very important parameter in the inspection process and must be closely controlled. The lines on Centrifugal Tube’s is to help you easily and accurately measure the magnetic bath concentration. The particle concentration is checked after the suspension is prepared and regularly monitored as part of the quality system checks. Generally, concentration checks are performed every eight hours or at every shift change. However the procedure and parameters of the settling test is set out in ASTM E1444 & E709 standards