# Particle Sizing

//Particle Sizing
Particle Sizing2019-03-18T08:17:36+00:00

## Particle Sizing

###### The size of a sphere can be unambiguously and quantitatively defined by its diameter. However, a typical material object is likely to be irregular in shape and non-spherical. The above quantitative definition of particle size cannot be applied to non-spherical particles.

The size of contaminants and particles are usually described in microns, a metric unit of measure where one micron is one-millionth of a meter.

Different techniques of size determination have different sensitivity. Number based techniques are more sensitive towards smaller particles. Mass-based techniques are more sensitive towards larger particles.

Optical techniques:

• Sensitivity determined by scattering
• Maximum sensitivity at intermediate size
• Sensitivity depends on, refractive index, polarisation, dispersity etc

## Looking for the right partner!

We are a particle technology service and knowledge center and have been European distributor for the particle company Duke Scientific for over 30 years.