ISO TC 205: an attempt of international standardisation on indoor air quality criteria (congrès EPIC 2002)

Résumé et principaux résultats

Congrès EPIC 2002 AIVC - Lyon, octobre 2002

The working group WG4 of ISO TC 205 aims to define Indoor Air Quality criteria. The draft standard contains several methods for determining ventilation rates, based on these criteria. The ventilation rates obtained with some of these methods are compared for several premises: ASHRAE 62-1999, the method of perceived IAQ of CR 1752, and the prescriptive method of AS 1668.2. To improve the comparison, ventilation rates are also calculated with the prEN 13779 method.

The studied buildings contains offices, classrooms and a play area. Ventilation rates obtained with real occupancy and default occupancy given in the draft are also compared. Then, the way to take into account smokers by the different methods has also been considered.

There are large discrepancies in the results: the CR 1752 category A always gives the highest ventilation rates, while the ASHRAE version in the ISO TC 205 and AS 1668 often give lowest results. Use of default occupancy increases the differences.

Thème

Ventilation et qualité de l'air

Mots-clés

Normalisation, Qualité de l'air intérieur, Ventilation

Auteurs

BERNARD Anne-Marie, TISSOT Anne