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Sensory evaluation of building products

A critical discussion of the overall method
: Salthammer, T.; Schulz, N.; Stolte, R.; Uhde, E.

Kenhove, Elisa van (HerausgeberIn) ; International Society of Indoor Air Quality and Climate -ISIAQ-, Ottawa:
14th International Conference on Indoor Air Quality and Climate, Indoor Air 2016. Vol.3 : Ghent, Belgium, 3-8 July 2016
Red Hook, NY: Curran, 2016
ISBN: 978-1-5108-3687-7
International Conference on Indoor Air Quality and Climate (Indoor Air) <14, 2016, Ghent>
Conference Paper
Fraunhofer WKI ()
ISO 16000-28; odor; perceived intensity; sensory testing; Π-scale; sampling container

Sensory testing is a criterion in many building product evaluation schemes, usually in combination with the determination of volatile organic compounds in the chamber air. The objective of a current research project was to evaluate the proposed methods of perceived intensity with respect to ISO 16000-28 for their suitability in practice. Our results clearly demonstrate that a) the analytical determination of acetone/air reference gas by use of an FID is a sophisticated task and requires careful calibration and individual determination of correction factors; b) air sampling and assessment methods are not adequately described; c) in most cases the assumed normality distribution of the data must be rejected; d) individual responses are skewed; e) the response of panelists to acetone reference concentrations does not follow the linear calibration curve. In summary, ISO 16000-28 needs a comprehensive evaluation regarding precision and robustness.