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Elemental mercury vapour in air: the origins and validation of the ‘Dumarey equation’ describing the mass concentration at saturation

Authors
  • Dumarey, Ronny1
  • Brown, Richard J. C.2
  • Corns, Warren T.3
  • Brown, Andrew S.2
  • Stockwell, Peter B.3
  • 1 ArcelorMittal Gent, John Kennedylaan 51, Gent, 9042, Belgium , Gent (Belgium)
  • 2 National Physical Laboratory, Analytical Science Team, Teddington, TW11 0LW, UK , Teddington (United Kingdom)
  • 3 Crayfields Industrial Estate, PS Analytical Ltd, Arthur House, Orpington, BR5 3HP, UK , Orpington (United Kingdom)
Type
Published Article
Journal
Accreditation and Quality Assurance
Publisher
Springer-Verlag
Publication Date
Feb 19, 2010
Volume
15
Issue
7
Pages
409–414
Identifiers
DOI: 10.1007/s00769-010-0645-1
Source
Springer Nature
Keywords
License
Yellow

Abstract

The Dumarey equation has been the dominant relationship used to calculate the mass concentration of saturated elemental mercury vapour in air for the calibration of mercury vapour measurement equipment for over 25 years. However, the origin of the equation, and the validation data supporting its accuracy have never been published. This paper addresses that deficiency, compares the Dumarey equation with other data sets to which it has been wrongly attributed in the past, and describes why it remains superior to the use of mercury vapour pressure data in combination with the ideal gas law, for the purposes of calibrating mercury vapour measurement equipment.

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