An experimental set-up has been implemented where indoor materials are used as a "membrane" separating two air compartments. Both compartments are constantly flushed with air, one air stream containing a mixture of 20 VOCs, and concentrations in both compartments are measured after 1 hour. 12 materials usually covering extensive surfaces indoors were consecutively exposed to the vapour mixture at concentration levels typically found in indoor environments. 7 of these materials exhibited a permeability high enough that VOCs could be discovered on the other side, among them a gypsum board. Diffusion of VOCs into and through indoor materials has therefore been confirmed experimentally.
MEININGHAUS Roman;
SALTHAMMER Tunga;
KNOEPPEL Helmut;
1998-06-05
JRC16127
https://publications.jrc.ec.europa.eu/repository/handle/JRC16127,
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