TY - CONF A1 - Richter, Matthias A1 - Beck, Oliver A1 - Wilke, Olaf A1 - Pyza, Lars A1 - Seeger, Stefan T1 - Test procedure for the evaluation of adsorptive building materials N2 - Construction materials working on the basis of physisorption or chemisorptions are considered as an additional means to improve indoor air quality. Some manufacturers promise a complete demineralisation of VOCs into C02 and water being not possible for most of typical indoor air pollutants. On the contrary, sometimes new substances are generated due to surface reactions, e.g. formaldehyde (Salthammer and Fuhrmann, 2007). For evaluating such products a testing system was built up at BAM enabling testing under defined, reproducible and realistic conditions. Tue VOC test gas is provided by a gas mixing system (GMS) developed at our institute (Richter, 2010). VOC gas mixtures with retraceable concentrations between 1 µg m·3 up to 1.5 mg m·3 can be produced. A gypsum board promoted as an 'air cleaner' was put in a 1 m3 emission test chamber connected with the GMS. The board was exposed to a gas mixture of four VOCs - ethyl acetate, hexanal, (+)-a-pinene and R-(+)-limonene - with gas concentrations between 600 µg m·3 and 1,440 µg m·3 for a period of 14 days. T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.2012 KW - Air cleaning KW - Sorptive construction materials KW - Test procedure KW - Volatile organic compound KW - Test gas generation KW - Healthy homes and buildings KW - Material and construction KW - Product safety KW - Risk assessment PY - 2012 SN - 978-1-921897-40-5 SP - 43 EP - 44 (Session 4B) AN - OPUS4-27558 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -