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Evaluation of evacuated glass tubes for sampling of SF6/ air mixture for air exchange measurement

From National Research Council Canada

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  1. National Research Council of Canada
FormatText, Article
SubjectIndoor air; air leakages; heat losses; gaseous states; test procedures; sampling; air infiltration rates; sulfur hexafluoride tracer gas; ion capture detector/ chromatograph; SF₆ storage stability tests
Abstract
Grab sampling of tracer gas/air mixture is a convenient method for conducting a survey of air infiltration rates in homes. Gas samples may be collected with a hypodermic needle and stored in Vacutainers. This technique is particularly suited when sulphur hexafluoride (SF[6]) is used as a tracer gas, as only a small quantity of gas sample is required to measure its concentration with an ion capture detector/chromatograph. Because an extended delay is probable between collection and analysis of gas samples, storage stability tests of SF[6]/air mixture in 20 mL Vacutainers were conducted. Samples can be stored for at least 21 days without significant changes in their concentrations. The gas sampling and analysis procedures are described in detail.
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  • ASHRAE Journal 25, no. 10 (October 1983): 40–43.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1165
NRC numberNRCC 23055
NRC-IRC-3922
NPARC number20375840
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Record identifierda803d0b-b27b-4684-a364-c5f11ac864af
Record created2012-07-23
Record modified2024-03-22
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