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Measurement Techniques
Published in: Measurement Techniques 1/2017

11-05-2017 | PHYSICOCHEMICAL MEASUREMENTS

Metrological Support of Liquid and Aerosol Particle Counters

Authors: E. V. Lesnikov, D. M. Balakhanov, V. I. Dobrovol’skii

Published in: Measurement Techniques | Issue 1/2017

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Abstract

The calibration and verification of liquid and aerosol particle counters are described. Aerosol particle counters are calibrated using latex spheres of known size. Depending on the design of the counters, the light scattered by the particles is detected at different angles. It is shown that detection of the scattered light at an angle of 90° leads to large measurement errors if the refractive index of the detected particles is not specified a priori. When the scattered light is detected over the entire solid angle, the error is substantially reduced. The metrological characteristics of counters with different designs are analyzed.
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Literature
1.
2.
GOST R ISO 21501-4, Determining Particle Size Distribution. Optimum Methods for Estimating Individual Particles. Air Particle Counters for Clean Zones.
3.
C. C. Gravatt and I. Allegrini, “A new light scattering method for the determination of the size distribution of particulate matter in air,” in: Proc. 3rd Int. Glean. Congr., Duesseldorf (1973), pp. 3–5.
4.
V. Heyder, C. Roth, and W. Stahlhofen, Particle Size Analysis, London (1972), p. 53.
5.
S. A. Schlesener, “A gas laser aerosol detection and sizing instrument,” J. Air. Pollut. Contr. Assoc., 19, No. 1, 40–42 (1969).CrossRef
6.
GOST 8.606–2012, National Verification Scheme for Means of Measuring the Dispersion Parameters of Aerosols, Suspensions, and Powdered Materials.
7.
GOST R ISO 11171–2012, Volume Hydraulic Drive. Calibration of Automatic Counters of Particles in Liquids.
8.
ISO 4406, Hydraulic Drives – Liquids – Method for Coding the Level of Contamination by Solid Particles.
9.
GOST 12103–66, Manganese Ores and Concentrates. Method for Determining Hygroscopic Moisture.
10.
ISO 16889, Volume Hydraulic Drive. Filters. Method for Repeated Passage of Fluid Through a Filter Element to Determine the Filtration Characteristics.
Metadata
Title
Metrological Support of Liquid and Aerosol Particle Counters
Authors
E. V. Lesnikov
D. M. Balakhanov
V. I. Dobrovol’skii
Publication date
11-05-2017
Publisher
Springer US
Published in
Measurement Techniques / Issue 1/2017
Print ISSN: 0543-1972
Electronic ISSN: 1573-8906
DOI
https://doi.org/10.1007/s11018-017-1154-y

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