BS ISO 21501-4:2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Determination of particle size distribution. Single particle light interaction methods Light scattering airborne particle counter for clean spaces
Hardcopy , PDF
05-25-2018
English
08-31-2007
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Foreword
Introduction
1 Scope
2 Terms and definitions
3 Requirements
3.1 Size calibration
3.2 Verification of size setting
3.3 Counting efficiency
3.4 Size resolution
3.5 False count rate
3.6 Maximum particle number concentration
3.7 Sampling flow rate
3.8 Sampling time
3.9 Response rate
3.10 Calibration interval
3.11 Test report
4 Test method
4.1 Size calibration
4.2 Verification of size setting
4.3 Counting efficiency
4.4 Size resolution
4.5 False count rate
4.6 Maximum particle number concentration
4.7 Sampling flow rate
4.8 Sampling time
4.9 Response rate
4.10 Calibration
Annex A (informative) Uncertainty of particle size
calibration
Annex B (informative) Counting efficiency
Annex C (informative) Size resolution
Annex D (informative) False count rate
Annex E (informative) Response rate
Bibliography
Explains a calibration and verification method for a light scattering airborne particle counter (LSAPC), which is used to measure the size and particle number concentration of particles suspended in air.
| Committee |
LBI/37
|
| DevelopmentNote |
Together with BS ISO 21501-2 and BS ISO 21501-3, supersedes BS ISO 13323-1. (08/2007) Supersedes 05/30137700 DC. (10/2007)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 21501-4:2007 | Identical |
| ISO 9276-1:1998 | Representation of results of particle size analysis — Part 1: Graphical representation |
| ASTM F 328 : 1998 | Standard Practice for Calibration of an Airborne Particle Counter Using Monodisperse Spherical Particles |
| ASTM F 649 : 2001 | Standard Practice for Secondary Calibration of Airborne Particle Counter Using Comparison Procedures (Withdrawn 2007) |
| ISO 14644-1:2015 | Cleanrooms and associated controlled environments Part 1: Classification of air cleanliness by particle concentration |
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