Academic Journal
Analysis of the uniformity and stability of dust concentration calibration systems in instrument testing.
| Title: | Analysis of the uniformity and stability of dust concentration calibration systems in instrument testing. |
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| Authors: | Yin J; School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China; Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, 08023, Spain., Wang S; School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China. Electronic address: sf.wang@csu.edu.cn., Shi L; School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China., Lei J; School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China., Wang H; State Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining & Technology, Xuzhou, Jiangsu, 221116, China., Shi H; Zhangjiagang Langyi Electromechanical Equipment Co., Ltd, Suzhou, Jiangsu, 215600, China., Alastuey A; Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, 08023, Spain., Querol X; Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, 08023, Spain. |
| Source: | Environmental research [Environ Res] 2026 Aug 15; Vol. 303 (Pt 1), pp. 124747. Date of Electronic Publication: 2026 May 14. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE |
| Imprint Name(s): | Publication: <2000- > : Amsterdam : Elsevier Original Publication: New York, Academic Press. |
| MeSH Terms: | Dust*/analysis , Environmental Monitoring*/instrumentation , Environmental Monitoring*/methods , Environmental Monitoring*/standards, Calibration ; Reproducibility of Results |
| Abstract: | Accurate calibration of dust concentration measuring instruments is essential for ensuring the reliability of industrial and environmental monitoring. This study systematically investigates the uniformity and stability of an advanced high-concentration dust calibration device through comprehensive verification experiments, including factory inspection, point-by-point concentration testing, long-term fixed-point measurement, and the evaluation for a wide-range concentration. The results demonstrate that the established device can achieve a spatial uniformity deviation of ±4.4% and a stability standard deviation of ±1.6%, both within the ±5% threshold specified by JJG 846-2015. Across a concentration range of 100-1000 mg/m3, although slightly higher repeatability values were observed at 500 and 600 mg/m3, most concentration levels remaining below the 5% reference criterion. These findings indicate that the calibration system can provide a homogeneous and stable dust-laden environment suitable for accurate and traceable calibration of dust concentration monitors. The research offers valuable insights for improving the metrological reliability of dust measurement technologies and contributes to the standardization of calibration practices in environmental and industrial applications. (Copyright © 2026 Elsevier Inc. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Industry; Metrological verification; Particulate matter; Stability; Uniformity |
| Substance Nomenclature: | 0 (Dust) |
| Entry Date(s): | Date Created: 20260515 Date Completed: 20260610 Latest Revision: 20260610 |
| Update Code: | 20260611 |
| DOI: | 10.1016/j.envres.2026.124747 |
| PMID: | 42140340 |
| Database: | MEDLINE |
| ISSN: | 1096-0953 |
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| DOI: | 10.1016/j.envres.2026.124747 |