# Blog

## How to calculate the volume of voids? Void volume is the volume of the pores or space between particles in:

• Ion exchanger
• Filter media
• Other granular material

## How do you calculate void ratio?

• To calculate the void ratio we must first calculate the volume of solids. Then we can find the volume of voids by subtracting the volume of solids from the total volume.

## What is the formula for void ratio?

• The formula for void ratio i.e, e = Vv/Vs (The void ratio is expressed in decimal.)

## What is critical void ratio?

• Critical Void Ratio The "Critical Void Ratio," in soil science and geology, represents the final void ratio of a soil sample, at ultimate strength. And Critical Void Ratio is achieved by the loose and dense samples of the same soil post- shearing.

## How to calculate the volume of voids?How to calculate the volume of voids?

Void Volume (ml) = (d^2 *Pi * L * Pore Volume) / 4 ; *Column Diameter & Length are in cm . Always measure the actual void volumn of your specific HPLC column with a compound which is unretained by your column.  ### How do you calculate void ratio?How do you calculate void ratio?

To calculate the void ratio we must first calculate the volume of solids. Then we can find the volume of voids by subtracting the volume of solids from the total volume.

### What is the formula for void ratio?What is the formula for void ratio?

The formula for void ratio i.e, e = Vv/Vs (The void ratio is expressed in decimal.)

### What is critical void ratio?What is critical void ratio?

Critical Void Ratio The "Critical Void Ratio," in soil science and geology, represents the final void ratio of a soil sample, at ultimate strength. And Critical Void Ratio is achieved by the loose and dense samples of the same soil post- shearing.