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

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TypeArticle
Journal titleASHRAE Journal
ISSN0001-2491
Volume25
Issue10
Pages4043; # of pages: 4
Subjectair leakages; heat losses; gaseous states; test procedures; sampling; air infiltration rates; sulfur hexafluoride tracer gas; ion capture detector/ chromatograph; sf6 storage stability tests; Indoor air; penetration de l'air; deperdition de chaleur; etat gazeux; methode d'essai; echantillonage
AbstractGrab 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.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-1165
NRC number23055
3922
NPARC number20375840
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Record identifierda803d0b-b27b-4684-a364-c5f11ac864af
Record created2012-07-23
Record modified2016-05-09
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