What are D10, D50, and D90 in particle size distribution?

1. D10: The particle size corresponding to the cumulative particle size distribution reaching 10% for a sample. Its physical meaning is that particles smaller than this size account for 10%.

2. D50: The particle size corresponding to the cumulative particle size distribution reaching 50% for a sample. Its physical significance is that particles with a diameter greater than D50 account for 50%, and particles with a diameter less than D50 also account for 50%. D50 is also called the median diameter or median particle size. D50 is commonly used to represent the average particle size of a powder.

3. D90: The particle size corresponding to the cumulative particle size distribution reaching 90% for a sample. Its physical significance is that particles with a diameter less than D90 account for 90%.