UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ISO 21501-4

Determination of particle size distribution - Single particle light interaction methods - Part 4: Light scattering airborne particle counter for clean spaces

active, Most Current
Buy Now
Organization: ISO
Publication Date: 1 May 2018
Status: active
Page Count: 32
ICS Code (Particle size analysis. Sieving): 19.120
scope:

This document describes a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size distribution and particle number concentration of particles suspended in air. The light scattering method described in this document is based on single particle measurements. The typical size range of particles measured by this method is between 0,1 μm and 10 μm in particle size.

Instruments that conform to this document are used for the classification of air cleanliness in cleanrooms and associated controlled environments in accordance with ISO 14644-1 and ISO 14644-2, as well as the measurement of number and size distribution of particles in various environments.

The following parameters are within the scope of this document:

- size setting error;

- counting efficiency;

- size resolution;

- false count;

- maximum particle number concentration;

- sampling flow rate error;

- sampling time error;

- response rate;

- calibration interval;

- reporting results from test and calibration.

Document History

March 16, 2021
Determination of particle size distribution — Single particle light interaction methods — Part 4: Light scattering airborne particle counter for clean spaces AMENDMENT 1
A description is not available for this item.
ISO 21501-4
May 1, 2018
Determination of particle size distribution - Single particle light interaction methods - Part 4: Light scattering airborne particle counter for clean spaces
This document describes a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size distribution and particle number...
May 15, 2007
Determination of particle size distribution — Single particle light interaction methods — Part 4: Light scattering airborne particle counter for clean spaces
A description is not available for this item.

References

Advertisement