# How To Read The Particle Size Distribution Report

2022-09-15

### 1. What Is A Dispersion Medium?

The liquid medium used to disperse the sample to be tested. The dispersion medium cannot react chemically with the particles to be tested, nor dissolve the sample to be tested.

### 2. What Is A Dispersant?

Chemical substances that can change the interface state between particles and liquids to promote particle dispersion.

### 3. What Is Analytical Mode?

The general pattern is the free distribution, that is, the natural particle size distribution inherent in the sample itself obtained by the unconstrained free fitting algorithm.

### 4. What Is Fitting Error?

Computational error in the conversion of energy spectrum data to particle size distribution data.

### 5. What Does D10, D50, And D97 Mean?

D10: The particle size whose cumulative distribution of particles is 10%, that is, the volume content of particles smaller than this particle size accounts for 10% of all particles.

D50: The particle size at which the cumulative distribution of particles is 50%. Also called median diameter or median particle size, this is a typical value for particle size that accurately divides the population into two equal parts, meaning that 50% of the particles exceed this value and 50% of the particles exceed this value below this value. If the D50 of a sample is 5 μm, it means that among all the particles of particle size that make up the sample, the particles larger than 5 μm account for 50%, and the particles smaller than 5 μm also account for 50%.

D97: The particle size where the particle cumulative distribution is 97%. That is, the volume content of particles smaller than this particle size accounts for 97% of all particles. Others and so on.

### 6. How To Analyze The Particle Size Distribution Diagram?

The particle size distribution diagram is a normal distribution curve, the X-axis (horizontal axis) represents each particle size, and the y-axis corresponds to the percentage of content. For general powders, the closer the particle size distribution diagram is to the normal distribution, the better Good consistency, that is, the more uniform the particle size distribution, the better the usability.

### 7. How To Judge The Quality Of Powder From The Characteristics Of Particle Size Distribution?

There will be data similar to D10, D50, D90, and D97 in the report. In the application process, if the content of fine powder is pursued, then D97 should not be too large, as shown in the particle size distribution diagram, that is, the latter part cannot be “bulging” Or “tailed” this means that the meal is high in meal, or the particles are too large.