Particle Size Distribution

  • Thread starter squalenepo
  • Start date
  • #1
What is the relationship between the Frequency Distribution, Cumulative Distribution and Particle Size?
 

Answers and Replies

  • #2
Baluncore
Science Advisor
2019 Award
8,008
2,869
Frequency distribution and cumulative distribution are statistical concepts.
You have a sample of particles that range from a minimum to a maximum size.

You perform a sieve analysis so as to sort or classify them into size ranges.
See; http://en.wikipedia.org/wiki/Sieve_analysis

You then weigh the particles in each class, (size range), and record that data.
By converting the weight falling in each size class to a percentage of the total you eliminate sample size variation.

If you tabulate or plot that data as a bar graph against size class you will have a frequency distribution. Different grinding or transport mechanisms have characteristically different frequency distributions. The comparison of graphed frequency distributions is quick and easy.

If you then compute a running total over the frequency distribution data, you will generate a cumulative frequency distribution, it starts at zero and finally reaches 100%. From that you can quickly identify what proportion of the mass of particles is above or below a particular size.
 

Related Threads on Particle Size Distribution

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
1
Views
685
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
3K
Replies
5
Views
5K
Replies
2
Views
5K
Replies
5
Views
6K
Top