A routine method for the determination of the TVOC content in wallcoverings using headspace gas-chromatography.
A method for the fast routine analysis of the total content of volatile organic compounds in wallcoverings and paper products was developed, using headspace gas-chromatography for quantification. 57 wallcoverings of different types were investigated. Typical components were toluene, methyl-ethyl ketone, methyl-iso-butyl ketone, n-butyl acetate and iso-butyl acetate, all compounds being used as industrial solvents. The TVOC concentrations are calculated in toluene-carbon equivalents and ranged from 0.31 microg/g to 1789 microg/g with an average value of 123.22 microg/g and a median of 20.37 microg/g. To obtain an estimation of VOC-concentrations in indoor air, 10 selected wallcoverings were also analyzed in a 1 m(3) climate test chamber. A correlation between headspace data and chamber concentrations could not be observed, which might be a result of increased analytical uncertainties at low emission rates under chamber conditions.
Meininghaus
R
R
Wilhelm-Klauditz-Institut (WKI), Fraunhofer Institut für Holzforschung, Bienroder Weg 54 E, D-38108, Braunschweig, Germany.
Fuhrmann
F
F
Salthammer
T
T