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Accurate calibration of mercury vapour indicators for occupational exposure measurements using a dynamic mercury vapour generator.

Brown, R J C; Brown, A S; Corns, W T*; Stockwell, P B* (2008) Accurate calibration of mercury vapour indicators for occupational exposure measurements using a dynamic mercury vapour generator. Instrum. Sci. Technol., 36 (6). pp. 611-622.

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Abstract

An accurate and rapid calibration procedure for hand-held mercury vapour indicators used for occupational health measurements is described, using a dynamic mercury vapour generator traceable to the standard bell-jar calibration apparatus. The method provides greater flexibility, accuracy and traceability than the usual methods for the calibration of mercury vapour indicators used for occupational health measurements. The calibration procedure demonstrated the need for a 20 % correction to be applied to the concentration value displayed by the mercury vapour indicator. Measurement results from the mercury vapour indicator following calibration with an expanded uncertainty of 8 % at the occupation exposure level of 25 mg.m-3 have been produced.

Item Type: Article
Subjects: Analytical Science
Analytical Science > Trace Analysis and Electrochemistry
Last Modified: 23 Jul 2018 13:20
URI: http://eprintspublications.npl.co.uk/id/eprint/4243

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