TY - CONF A1 - Wiegner, Katharina A1 - Wilke, Olaf A1 - Jann, Oliver A1 - Brödner, Doris A1 - Scheffer, Harald A1 - Kalus, Sabine A1 - Till, Carola T1 - Study on VOC-Emissions from Oriented Strand Boards (OSB) T2 - Healthy buildings 2009 - 9th International conference & exhibition CY - Syracuse, NY, USA DA - 2009-09-13 KW - Volatile organic compound (VOC) KW - Aldehyde KW - Antioxidant KW - Wood KW - Oriented strand boards (OSB) PY - 2009 IS - Paper 247 SP - 1 EP - 4 CY - Syracuse, NY, USA AN - OPUS4-19928 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wilke, Olaf A1 - Wiegner, Katharina A1 - Scheffer, Harald A1 - Brödner, Doris A1 - Kalus, Sabine T1 - Determination of the emissions of volatile organic compounds from oriented strand boards and evaluation by the German AgBB scheme N2 - There has been an increasing use of oriented strand boards (OSBs) for the construction of floors, ceilings and walls of buildings. In Germany and other European countries, OSBs are mainly produced from pine wood (Pinus sylvestris). In response to complaints about the odour and irritation of mucous membranes in connection with the use of OSBs, samples of OSBs were bought from do-it-yourself stores to test their volatile organic compound (VOC) emissions by using emission test chambers. The boards emitted predominantly monoterpenes, aldehydes, acids and acetone. Aldehydes are generated during the production process by the oxidation of unsaturated fatty acids such as linoleic acid. Pine wood, compared with other wood species, contains more unsaturated fatty acids. Of the six acquired OSBs, four boards from three manufacturers would not meet the requirements of the German AgBB (Ausschuss zur gesundheitlichen Bewertung von Bauprodukten, Committee for Health Evaluation of Building Products), mainly because of the emissions of unsaturated aldehydes. These compounds have low LCI values (lowest concentration of interest) and are therefore problematic substances based on a health-related evaluation of building products according to the AgBB scheme. KW - Oriented strand board KW - Volatile organic compounds KW - Unsaturated aldehydes KW - Pine wood KW - Emission test chamber KW - AgBB scheme PY - 2014 U6 - https://doi.org/10.1177/1420326X13504121 SN - 1420-326X SN - 1423-0070 VL - 23 IS - 7 SP - 1050 EP - 1054 PB - Karger CY - Basel ; München [u.a.] AN - OPUS4-32063 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Wiegner, Katharina A1 - Scheffer, Harald A1 - Brödner, Doris T1 - VOC-Emissions from Plywood boards N2 - Wood and wood products are often used as construction material for buildings and even more for furniture and indoor decoration. Therefore Chemical emissions from wood have an influence on the indoor air quality. A research project financed by the Federal Environmental Agency focused on VOC emissions from oriented Strand boards (OSB) and also from plywood made from pine and spruce (Wilke et al., 2011a). This paper shows results of the plywood testing because only little information is available about plywood emission behaviour and its impact on indoor air quality. T2 - Indoor Air 2011, 12th International conference on indoor air quality and climate CY - Austin, TX, USA DA - 05.06.2011 KW - VOC-Emission KW - Plywood KW - Terpenes KW - Aldehydes KW - Indoor air quality PY - 2011 IS - Paper 768 SP - 1 EP - 2 AN - OPUS4-23885 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Wilke, Olaf A1 - Jann, Oliver A1 - Brödner, Doris A1 - Scheffer, Harald A1 - Kalus, Sabine T1 - Emissionsminderung von Aldehyden durch den Einsatz von Antioxidantien bei der OSB-Plattenherstellung T2 - 8. Holzwerkstoff-Kolloquium - Ressourcenschonender Rohstoffeinsatz und energieeffiziente Technologien CY - Dresden, Deutschland DA - 2009-12-10 KW - OSB KW - VOC KW - Oriented strand board KW - Volatile organic compound KW - Emissionen KW - Reduktion KW - Aldehyde KW - Antioxidantien KW - Holz PY - 2009 SP - 1 EP - 7 AN - OPUS4-20675 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Wilke, Olaf A1 - Wiegner, Katharina A1 - Jann, Oliver A1 - Brödner, Doris A1 - Scheffer, Harald T1 - Emissionsverhalten von Holz und Holzwerkstoffen (UBA-FB 001580) N2 - In diesem Vorhaben wurden 8 OSB-Platten und sieben Leimholzplatten aus Baumärkten gemäß den Vorgaben des AgBB-Schemas in Emissionsmesskammern geprüft. Hinzu kamen Messungen an 17 im Technikum hergestellten OSB, an denen der Einfluss von Herstellungsparametern auf VOCEmission untersucht wurde. Grundsätzliches Ziel war es, durch die Untersuchungen Lösungsansätze für die Emissionsminderung von VOC aus Holzwerkstoffen zu finden. Dazu wurde auch der Einsatz von Antioxidantien bei der OSB-Herstellung getestet. Die Emissionen des Rohstoffes Kiefernholz wurden an 6 Proben aus Splint- oder Kernholz aus unterschiedlichen Stammabschnitten einer frisch gefällten Kiefer untersucht. Insgesamt konnte mit dem Projekt gezeigt werden, dass einige der im Handel erhältlichen OSB und auch Leimhölzer eine Bewertung nach dem AgBB-Schema aufgrund von zu hohen Aldehyd- und Terpenemissionen nicht bestehen. Für die Aldehydemissionen (insbesondere Hexanal und ungesättigte höhere Aldehyde) konnte durch den Einsatz von Antioxidantien bei der OSB-Herstellung eine Verminderung auf ein Drittel erreicht werden, allerdings stiegen dadurch die Terpenemissionen an. In this project, eight Oriented Strand Boards (OSB) and seven plywood boards from DIY stores were tested in emission test chambers according to the AgBB scheme’s specifications. In addition, 17 OSBs manufactured in a pilot plant were tested to investigate the effect of production parameters on VOC emission. The use of antioxidants in OSB production was also tested. The main objective of the investigation was to find potential solutions for reducing VOC emissions from timber materials. The emissions from pine wood were investigated on six sapwood or heartwood samples from different trunk sections of freshly felled pine. The project’s results show that, due to their high aldehyde and terpene emissions, some types of commercially available OSB and plywood did not meet the AgBB scheme’s requirements. By using antioxidants in OSB production it was possible to reduce aldehyde emissions (especially hexanal and unsaturated higher aldehydes) to one third. However, this caused an increase in terpene emissions. KW - Bauprodukte KW - AgBB-Schema KW - Emissionsprüfkammern KW - Geruchsmessungen KW - VOC KW - VVOC KW - SVOC KW - Thermodesorption KW - GC/MS KW - Holzwerkstoffe KW - OSB KW - Leimholz KW - Construction products KW - AgBB Scheme KW - Emission test chamber KW - Odour measurement KW - Thermal desorption KW - Wood Products KW - Oriented Strand Board KW - Plywood Board PY - 2012 UR - http://www.umweltbundesamt.de/publikationen/emissionsverhalten-von-holz-holzwerkstoffen IS - 07 SP - 1 EP - 224 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-25843 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -