A STUDY ON THE REPRODUCIBILITY OF PARTICLE SIZE ANALYSIS USING LASER
DIFFRACTION

Ha, Sang-An

doi:2003.8.4.212

Environmental Engineering Research 2003;8(4): 212-221. DOI: https://doi.org/10.4491/eer.2003.8.4.212

A STUDY ON THE REPRODUCIBILITY OF PARTICLE SIZE ANALYSIS USING LASER DIFFRACTION

Sang-An Ha^†

Department of Environmental Engineering, Silla University

Corresponding Author: Sang-An Ha ,Tel: +82-51-999-5273, Fax: +82-51-999-5652, Email: saha@silla.ac.kr

Received: April 14, 2003; Accepted: September 14, 2003.

ABSTRACT

Purpose of this study is to diminish the error of measurement and to increase measurement reproducibility in the process measuring particle size. Thus we suggested various analysis method, sampling, and statistical analysis error according to measuring frequency. This measuring technique using laser diffraction spectrometer has many advantages that simple operation gives easy measurement, measurement reproducibility was high, and measurement accuracy was effective because analysis speed was fast. Analysis reproducibility could be confirmed by comparing with other method and apparatus. For more precise measurement result, measurement errors by variety of particle size, dispersion, flow rate, an concentration variety of sample was indicated, and measuring time, focal plane, injection pressure drop, sampling method and dispersion effect were analyzed as measurement error according to apparatus system change.

Keywords: laser diffraction spectrometer | reproducibility | analysis method | sampling method