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

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...

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Bibliographic Details
Published inThe Science of the total environment Vol. 293; no. 1; pp. 201 - 206
Main Authors Tsai, Chuen-Jinn, Chang, Chung-Tso, Shih, Bow-Huei, Aggarwal, Shankar G, Li, Shou-Nan, Chein, Hung Min, Shih, Tung-Sheng
Format Journal Article
LanguageEnglish
Published Shannon Elsevier B.V 03.07.2002
Elsevier Science
Subjects
Analysis methods
Applied sciences
Atmospheric pollution
Electrical charge
Electricity
Environment
Environmental conditions
Environmental Monitoring - methods
Environmental Pollutants - analysis
Exact sciences and technology
Filters
Filtration
Pollution
Reproducibility of Results
Weighing accuracy
Filters
Weighing accuracy
Electrical charge
Environmental conditions
Fibrous material
Weighing
Tetrafluoroethylene polymer
Cellulose mixed ester
Suspended particle
Medium effect
Filter
Sampler
Aerosols
Air pollution
Measurement accuracy
Polyvinyl chloride
Sampling
Glass fiber
Electrostatic charge
Neutralization
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Summary: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.
ISSN:0048-9697
1879-1026
DOI:10.1016/S0048-9697(02)00015-3