Measurement of deionized water density based on single silicon sphere

Jin-Tao Wang; Jing-Yue Zhang; Xin-yu Ma; Lin Tong; Xue-Song Bao

doi:10.1117/12.2512096

7 March 2019 Measurement of deionized water density based on single silicon sphere

Jin-Tao Wang, Jing-Yue Zhang, Xin-yu Ma, Lin Tong, Xue-Song Bao

Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 1105336 (2019) https://doi.org/10.1117/12.2512096
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China

Abstract

Due to perfect stability, deionized water is usually used as one important reference material for density and volume calibration. To evaluate suitability of pure water density formulas for deionized water, one measurement system based on Archimedes’s principle was designed, and silicon ring was used for density standard to measure the density of deionized at 20°C. The experimental result shows that The Tanaka equation can be used to calculate the density of deionized water with deviation 5ppm. The uncertainty budget of measurement is analyzed, and the combined relative uncertainty is 4.09ppm (k=2).

Citation Download Citation

Jin-Tao Wang, Jing-Yue Zhang, Xin-yu Ma, Lin Tong, and Xue-Song Bao "Measurement of deionized water density based on single silicon sphere", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 1105336 (7 March 2019); https://doi.org/10.1117/12.2512096

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