The effect of environmental conditions and electrical charge on the weighing accuracy of different filter materials

Chuen-Tinn Tsai*, Chung Tso Chang, Bow Huei Shih, Shankar G. Aggarwal, Shou Nan Li, Hung Min Chein, Tung Sheng Shih

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

Different filter materials and electrical charge elimination methods were used to investigate the weighing accuracy of filter papers under different environmental conditions. The results show that the standard deviations (S.D.) of weight data for glass fiber and MCE filters were substantial without environmental control, whether or not the electrical charge eliminators were used. Values of 0.157 and 0.349 mg were determined for glass and MCE filters, respectively. The accuracy of weighing was substantially improved and the S.D. was reduced to 0.01 and 0.09 mg for glass fiber and MCE filters, respectively, after applying the environmental control conditions. For PVC and Teflon filters, the accuracy of weighing was good, even in the uncontrolled environmental conditions, whether or not the electrical charge eliminators were used. The S.D. values of weighing data of PVC and Teflon filters were 0.007 and 0.011 mg, respectively.

Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalScience of the Total Environment
Volume293
Issue number1-3
DOIs
StatePublished - 3 Jul 2002

Keywords

  • Electrical charge
  • Environmental conditions
  • Filters
  • Weighing accuracy

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