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http://dx.doi.org/10.15269/JKSOEH.2014.24.2.201

Development of an Evaluation Method for the Flow Rate Performance of Gas Sampling Pumps Using Adsorbent Tubes  

Kim, Nam Hee (Department of Occupational and Environmental Health, Yongin University)
Song, Ho June (Paju Safety Managing Team, LG Display)
Kim, Ki Youn (Department of Industrial Health, Catholic University of Pusan)
Ma, Hye Lan (Korea Industrial Hygiene Association)
Yi, Gwang Yong (Occupational Safety and Health Research Institute, KOSHA)
Jeong, Jee Yeon (Department of Occupational and Environmental Health, Yongin University)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.24, no.2, 2014 , pp. 201-207 More about this Journal
Abstract
Objectives: Flow rate stability is very important for obtaining reliable measurements. However there is no easily used method for checking whether the flow rate set at the initial stage is sustained during sampling. The purpose of this study was to develop a method to evaluate the flow rate performance of gas sampling pumps with adsorbents commonly used to sample gases. Materials and methods: We tested the back pressure of gas sampling pumps commonly used in Korea with adsorbents such as charcoal and silica tubes and attempted to discover the combination conditions of adsorbents in accordance with back pressure required by ISO standard 13137. Results: We found the combination of sampling adsorbents to be applicable to the pressure drop required by the ISO standard for evaluating flow rate stability under increasing pressure drop and long term (eight-hour) performance. Conclusions: This evaluation method of using a sampling media matrix for checking flow rate stability as proposed by this study could be a highly useful tool for determining the reliability of the performance pumps before sampling.
Keywords
Adsorbents; back pressure; flow rate; pump; ISO;
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