Lower Detection Limit of an Optical Particle Counter in the measurement of particle size distributions

1989 ◽  
Vol 6 (1-4) ◽  
pp. 124-128 ◽  
Author(s):  
Bernd Sachweh ◽  
Helmut Büttner ◽  
Fritz Ebert
Keyword(s):  
Particle Size ◽  
Detection Limit ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Particle Counter ◽  
Lower Detection Limit ◽  
Optical Particle Counter ◽  
Lower Detection

Particle Size Distributions in Clean Rooms

1987 ◽  
Vol 30 (6) ◽  
pp. 44-49
Author(s):  
David Ensor ◽  
Robert Donovan ◽  
Bruce Locke
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Atmospheric Aerosol ◽  
Particle Number ◽  
Condensation Nucleus ◽  
Balance Model ◽  
Size Distributions ◽  
Clean Room ◽  
Particle Size Distributions ◽  
Optical Particle Counter

Measurements of particle size distributions smaller than 0.1 μm in Class 100 clean rooms are summarized. The size distributions were measured in operational rooms during periods of time with little activity—the so-called "at rest" conditions. A simple particle number balance model is proposed, illustrating the importance of filter penetration and atmospheric aerosol on the concentration of submicrometer particles. Preliminary calculations are used to explain the absence of < 0.1 μm diameter particles in the clean rooms tested. A ratio of condensation nucleus counter concentration to optical particle counter concentration is suggested as a parameter to provide an indication of changes in clean room particle size distribution.

254. A Comparison of the Particle Size Distributions for Aerosols Generated During Wet Grinding and Dry Deburring of Beryllium

1999 ◽  
Author(s):  
K.K. Ellis ◽  
R. Buchan ◽  
M. Hoover ◽  
J. Martyny ◽  
B. Bucher-Bartleson ◽  
...  
Keyword(s):  
Particle Size ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Wet Grinding

Measurements of Mineral Particle Size Distributions by a Buoyancy Weighing Method

2010 ◽  
Vol 126 (10/11) ◽  
pp. 577-582 ◽  
Author(s):  
Katsuhiko FURUKAWA ◽  
Yuichi OHIRA ◽  
Eiji OBATA ◽  
Yutaka YOSHIDA
Keyword(s):  
Particle Size ◽  
Mineral Particle ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Weighing Method
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