Abstract：A new method for the rapid determination of the pellet volume by discharge liquid and titration is introduced. The method is based on the principle of volumetric drainage and titration control precision. It is proved to be accurate and feasible after a large number of experiments. The equipment, reagents, procedures are simple, the data is intuitionistic and easy to check, the precision is high, and the time consuming is short. The single measurement can be completed in only 30 minutes. After application, the measurement time of the pellet relative free swelling index can be shortened by more than 3 h, which makes up for the shortage of the method for measuring the volume of pellets recommended in GB/T 13240—1991 The method for determination of iron pellet relative free swelling index.
2019, Vol. 29 
