TY - CONF A1 - Wiegner, Katharina T1 - Auswertung von Ringversuchen zu VOC-Messungen in Emissionskammern T2 - Workshop: Arbeiten mit ProLap Plus 2010 CY - Dresden, Germany DA - 2010-10-26 PY - 2010 AN - OPUS4-22246 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina T1 - Auswertung von Ringversuchen zu VOC-Messung in Emissionskammern T2 - Workshop: Arbeiten mit ProLab Plus 2010 CY - Dresden, Germany DA - 2010-10-26 PY - 2010 AN - OPUS4-23105 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Wilke, Olaf A1 - Jann, Oliver T1 - Method validation study for VOC emission measurements N2 - Quality and trueness of results received from measurements are very important for all involved parties, producers and consumers as well; for instance, if the results were used for acceptance of a product within a labeling procedure. Based on an inter-laboratory study with many German, European and US-American laboratories an extemal quality assurance System for the analysis of VOC emitting from products or the measurement in indoor air should be implemented (financed by the German Federal Environmental Agency). A focus was set on the emission test chamber experiments and the connected analytical procedure. VOC have a dominating influence when applying the German AgBB scheme for health evaluation of building products. Therefore it is necessary to ensure that the results between the testing laboratories are comparable. The successful participation to such round robin tests is offen essential for the acceptance of results given by an analytical laboratory. T2 - Indoor Air 2011, 12th International conference on indoor air quality and climate CY - Austin, TX, USA DA - 05.06.2011 KW - Round robin test KW - VOC KW - Construction product KW - Emission PY - 2011 IS - Paper 768 SP - 1 EP - 2 AN - OPUS4-23880 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Brödner, Doris A1 - Horn, Wolfgang T1 - Correlation of aldehyde emissions and fatty acids content in pine wood and oriented strand boards N2 - Indoor air quality is important for human health and comfort. To ensure good indoor air quality contamination by volatile organic compounds (VOC) should be minimised. The aim of the project is the reduction of unsaturated aldehydes which can emit from oriented Strand boards (OSB): These aldehydes have an impact on the health based evaluation of emissions from products for indoor use according to the AgBB (Ausschuss zur gesundheitlichen Bewertung von Bauprodukten, Committee for Health Evaluation of Building Products) scheine (AgBB 2010). The model OSB were produced in a pilot plant using well known raw materials (Pinus sylvestris at different trunk heights) under using various processing parameters (Wilke et al. 2011). OSB emit predominantly monoterpenes and aldehydes. Aldehydes are oxidation products of fatty acids in wood. The conditions which affect the oxidation process are the fatty acid concentration and composition, the oxygen content, the sample surface and the presence of compounds which indicate, inhibit or stop the oxidation respectively. The oxidation rate rises with an increasing number of double bounds in the fatty acid, e.g. the oxidation rate between oleic, linoleic and linolenic acid correspond to 1:12:24. One of the most important products of fatty acid oxidation is hexanal. It is generated during the oxidation of linoleic acid. This study shows a direct correlation between aldehyde emission and oxidation, hexanal can be used as an indicator for oxidation. T2 - Indoor Air 2011, 12th International conference on indoor air quality and climate CY - Austin, TX, USA DA - 05.06.2011 KW - VOCs KW - Oxidation products KW - Fatty acid KW - Saturated and unsaturated aldehyde KW - Hexanal PY - 2011 IS - Paper 768 SP - 1 EP - 2 AN - OPUS4-23878 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Howard-Reed, C. A1 - Liu, Z. A1 - Cox, S. A1 - Little, J. A1 - Horn, Wolfgang A1 - Wilke, Olaf A1 - Wiegner, Katharina A1 - Persily, A. T1 - Inter-laboratory study approach to validate the performance of a prototype reference material for product emissions testing N2 - Product emissions chamber testing involves a complex protocol with several sources of measurement uncertainty (ASTM, 2010; ISO, 2006). Despite the potential for significant variability in measurement results within and among laboratories, there is no Standard method available to assess the accuracy of emissions chamber test results. Recently, Germany’s Federal Institute for Materials Research and Testing (BAM) started a program to evaluate the performance of laboratories testing for the AgBB (German Committee for Health-related Evaluation of Building Products) labelling scheme (Wilke et al., 2009). Test method validation was conducted through interlaboratory studies (ILS) with over 30 participants. Simultaneously, the National Institute of Standards and Technology (NIST) and Virginia Tech (VT) started a program to develop a series of reference materials that mimic real building products, can be tested in typical emissions chambers, and have independently known emission rates (Cox et al., 2010). BAM, NIST and VT subsequently joined forces to conduct a series of inter-laboratory studies using the prototype reference material. A pilot ILS was conducted with BAM and NIST followed by an expanded ILS with several participating countries. Results from these interlaboratory studies have the potential to define an internationally-accepted Standard approach to validate results from product emissions tests. T2 - Indoor Air 2011, 12th International conference on indoor air quality and climate CY - Austin, TX, USA DA - 05.06.2011 KW - Test method validation KW - Volatile organic compounds KW - Product certification PY - 2011 IS - Paper 768 SP - 1 EP - 2 AN - OPUS4-23883 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina T1 - Determination of MVOCs like formic and acetic acid with LC-MS/MS T2 - 15th International Biodeterioration and Biodegradation Symposium IBBS-15 CY - Vienna, Austria DA - 2011-09-19 PY - 2011 AN - OPUS4-24403 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina T1 - Correlation of aldehyde emissions and fatty acids content in pine wood and oriented strand boards T2 - Indoor Air 2011 CY - Austin, TX, USA DA - 2011-06-05 PY - 2011 AN - OPUS4-24139 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina T1 - Development of a reference material for volatile organic compound emissions in test chambers T2 - EURACHEM: 7th Workshop; Proficiency testing in analytical chemistry, microbiology and laboratory medicine; Current Practice and Future Directions CY - Istanbul, Turkey DA - 2011-10-02 PY - 2011 AN - OPUS4-24448 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina T1 - Bewertungsschema von Baumaterialien für den Kulturgutbereich (Museumsvitrinen) BEMMA T2 - 19. WaBoLu-Innenraumtage CY - Berlin, Germany DA - 2012-05-14 PY - 2012 AN - OPUS4-25906 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nohr, Michael A1 - Horn, Wolfgang A1 - Wiegner, Katharina A1 - Richter, Matthias A1 - Lorenz, W. T1 - Development of a material with reproducible emission of selected volatile organic compounds - mu-chamber study N2 - Volatile organic compounds (VOCs) found indoors have the potential to affect human health. Typical sources include building materials, furnishings, cleaning agents, etc. To address this risk, chemical emission testing is used to assess the potential of different materials to pollute indoor air. One objective of the European Joint Research Project 'MACPoll' (Metrology for Chemical Pollutants in Air) aims at developing and testing a reference material for the quality control of the emission testing procedure. Furthermore, it would enable comparison of measurement results between test laboratories. The heterogeneity of the majority of materials makes it difficult to find a suitable reference sample. In the present study, styrene, 2-ethyl-1-hexanol, N-methyl-α-pyrrolidone, lindane, n-hexadecane, 1,2-dimethyl- and 1,2-di-n-butyl-phthalate were added to 12 commercially available lacquers (6 alkyd and 6 acrylic polymer based lacquers) serving as carrier substrate. After homogenization, the mixtures were loaded into a Markes Micro-Chamber/Thermal Extractor (µ-CTE™) for curing and investigation of the emission behavior for each compound. For almost all of the investigated chemicals, the preferred glossy acrylic lacquer showed emissions that were reproducible with a variation of less than 20% RSD. Such lacquer systems have therefore been shown to be good candidates for use as reference materials in inter-laboratory studies. KW - VOC KW - Reference material KW - Emission testing KW - Indoor air KW - Inter-laboratory study PY - 2014 DO - https://doi.org/10.1016/j.chemosphere.2013.12.047 SN - 0045-6535 SN - 0366-7111 VL - 107 SP - 224 EP - 229 PB - Elsevier Science CY - Kidlington, Oxford AN - OPUS4-30816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Wiegner, Katharina A1 - Farke, M. A1 - Horn, Wolfgang A1 - Jann, Oliver A1 - Hahn, Oliver ED - Brozio, P. T1 - Schadstoffe im Museum richtig einschätzen N2 - Schadstoffe beschäftigen derzeit Museen weltweit Heute weiß man, dass diese auch aus Materialien, die für den Ausstellungsbau verwendet werden, austreten können, was eine Gefahr für Exponate darstellt. Ein neues Verfahren namens BEMMA bietet nun erstmalig die Möglichkeit, relativ schnell und effektiv eine problemorientierte Untersuchung und Bewertung mit belastbaren und reproduzierbaren Ergebnissen vorzunehmen. KW - Emissionsarme Vitrinen KW - Präventive Konservierung KW - VOC KW - BEMMA PY - 2011 SN - 978-3-7667-1962-1 SP - 127 EP - 131 PB - Callwey CY - München AN - OPUS4-25377 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Nohr, Michael A1 - Wiegner, Katharina A1 - Richter, Matthias A1 - Horn, Wolfgang T1 - Development of a reference material for the measurement of (S)VOC in emission test chambers N2 - Generally most of the daily time citizens in western countries spend indoors (Brasche and Bischof, 2005). Several investigations Show that harmful (semi-) volatile organic Compounds ((S)VOC) can emit from fumiture and building products into indoor air. Additionally, a significant impact of (S)VOC on the human health is also given (Boeglin et al., 2005). To assess the health impact and air quality, reliable and significant measurements and analytical procedures for the detection of contaminants in indoor air are necessary. Several studies show that the results from inter-Iaboratory round robin test for such (S)VOC measurements show considerable variations up to 300 % (Howard-Reed et al., 2007). Therefore standardisations of Methods for sample preparation, air sampling and for the measurement of (S)VOC emissions are important to get reproducible results. MACPoll (Metrology for Chemical pollutants in air) is one section ofthe environment call of EMRP (European Metrology Research Projekt) and aims to improve the analysis of gaseous pollutants in air. By investigate the traceability for the measurement of (S)VOC in indoor air one part of this project deals with the addressed problems. T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.2012 KW - VOC KW - Sources/emissions KW - Measurements KW - Laboratory studies PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (5B.10) AN - OPUS4-27568 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wiegner, Katharina A1 - Horn, Wolfgang A1 - Stephan, Ina A1 - Nohr, Michael A1 - Lau, Angelika A1 - Farke, M. A1 - Hahn, Oliver T1 - Überprüfung möglicher mikrobieller Belastungen in Vitrinenluft durch Kleinklimageräte N2 - Unterschiedliche Befeuchtungssysteme für Vitrinen, die die Ausstellungsobjekte bei definierter Luftfeuchtigkeit vor externen Einflüssen wie Staub bewahren sollen, wurden im Hinblick auf die Möglichkeit der potenziellen mikrobiologischen Kontamination untersucht. Ergänzend hierzu wurden Parameter wie pH-Wert und Leitfähigkeit des Wassers im Befeuchter untersucht und die mikrobiellen flüchtigen organischen Verbindungen (MVOC, microbial volatile organic compounds) in der Modellvitrine bestimmt. Die Leitfähigkeitsmessung kann als Indikator für den Verunreinigungsgrad des Wassers dienen, weil sie mit der mikrobiologischen Belastung korreliert. Weiterhin war eine mikrobiologische Belastung der Luft in der Modellvitrine auch bei relativ hoher Verunreinigung des Befeuchtungswassers nicht nachzuweisen. KW - MVOC (microbial volatile organic compounds) KW - Schimmelpilze KW - Kleinklimagerät KW - Vitrinen KW - Essigsäure PY - 2011 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 71 IS - 9 SP - 378 EP - 381 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-24340 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mull, Birte A1 - Wiegner, Katharina A1 - Horn, Wolfgang T1 - Comparison of different air sampling adsorbents for a screening method for SVOC N2 - Semi volatile organic Compounds (SVOC) might be a problem for the indoor air quality among others in older wood based houses and in museums because of the former use of Wood preservatives. Wood preservatives containing biocides were partially applied in the second part of the 20th Century to protect wooden elements in houses and organic exhibits against insect attacks (Leihe 1992; Schieweck et al. 2009). For that reason measurement strategies for wooden elements in emission test chambers, exhibits in museum showcases and for theindoor air are required. The presented data were received from a study in which an analytical method for emission test chamber and Showcase measurements should be developed. Until now starting tests were performed in a Micro� Chamber (p-CTE), and in indoor air. First of all an appropriate adsorbent for the sampling of biocides had to be selected, which extraction process is not that time and solvent consuming as it is for polyurethane foam (PUF). The p-CTE is chosen for the experiments in this study due to its Operation ränge from ambient temperature up to 120 °C. To shorten the sampling time higher temperatures are necessary to force the vaporization of the higher boiling SVOC into the gas phase, because the air sampling of biocides at ambient temperature in emission test chambers can last up to several years (Horn et al. 2003). T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.2012 KW - Biocides KW - Air sampling KW - Micro-chamber KW - SDVB-polymer PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (6B.2) AN - OPUS4-27569 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wiegner, Katharina A1 - Hahn, Oliver A1 - Farke, M. A1 - Stephan, Ina A1 - Nohr, Michael A1 - Horn, Wolfgang T1 - Development of methods for testing of microbiological contamination of small climate control units for air in display cases N2 - Museums worldwide are equipped with different display cases. Exhibit display cases should protect cultural objects from dust as well as from mechanical and physical damage. To ensure a stable climate inside the display cases, a low air exchange rate is operated. Typically air exchange rates are often smaller than 0.1 d'1 (Torge, 2000). Furthermore display cases are often operated with constant temperature and relative humidity. A relative humidity for parchment, leather, wooden sculptures of e.g. 60 % (Stolow, 1988) is suited for the protection of exhibits against external influences like fluctuation of humidity and temperature. T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 08.07.2012 KW - Microbiological contamination KW - Acetic and formic acid KW - Conductivity KW - Climate control device KW - Display case KW - Normung KW - Geruch KW - Messmethoden KW - Emissionsmessung KW - Bauprodukte PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 2 (5H.2) AN - OPUS4-27562 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wiegner, Katharina A1 - Hahn, Oliver A1 - Horn, Wolfgang A1 - Farke, M. A1 - Kalus, Sabine A1 - Nohr, Michael A1 - Jann, Oliver T1 - Determination of formic and acetic acid emissions in indoor air or from building products N2 - Several construction and building materials, including wood, glue and coatings, are possible sources of very volatile organic compounds (VVOCs) and volatile organic compounds (VOCs) like formic and acetic acid. Due to very high air tightness and very low air exchange rates in new buildings concentrations of these harmful substances can increase considerably. To minimize the risk, emissions from building products should be identified and quantified. With the common standard method, this means Tenax® sampling followed by thermal desorption and GC-MS analysis, these acids could not be detected sufficiently. The aim oft this study is the comparison of two different methods for the determination of acetic and formic acid. The sampling of method one, which is usually used for identification and quantification of VOCs, is done in accordance with ISO 16000-6 and ISO 16017-1 on Carbotrap® 202 multi-bed thermal desorption tube by subsequent identification and quantification with GC-MS. Method two is based on sampling on 2,4-dinitrophenylhydrazine (DNPH) cartridges, derivatisation, elution, identification and quantification of the derivatives with LC-MS/MS (liquid chromatography – mass spectrometry/mass spectrometry). N2 - Viele Konstruktions- und Baumaterialien, wie Holz, Kleber und Anstriche, sind mögliche Quellen für leicht flüchtige organische Verbindungen (VVOC) und flüchtige organische Verbindungen (VOC), wie Ameisen- und Essigsäure. Bedingt durch die hohe Dichtigkeit und den damit verbundenen niedrigen Luftwechsel in neuen Gebäuden können die Konzentrationen dieser gesundheitsgefährdenden Substanzen beträchtlich ansteigen. Um das Risiko zu minimieren, sollen Emissionen aus Bauprodukten identifiziert und quantifiziert werden. Mit der üblichen Standardmethode, die auf einer Luftprobenahme auf Tenax® und anschließender Analyse mittels GC-MS basiert, können diese Säuren nicht ausreichend detektiert werden. Ziel dieser Arbeit ist der Vergleich von zwei unterschiedlichen Methoden zur Bestimmung von Essig- und Ameisensäure. Die Luftprobenahme der ersten Methode, die üblicherweise zur Identifizierung und Quantifizierung von VOC genutzt wird, wurde gemäß ISO 16000-6 and ISO 16017-1 auf Carbotrap® 202, ein mit mehreren Adsorbentien gepacktes Thermodesorptionsrohr, mit anschließender Identifikation und Quantifizierung mittels GC-MS durchgeführt. Die zweite Methode basiert auf einer Luftprobenahme mittels 2,4-Dinitrophenylhydrazin-(DNPH)-Kartuschen, Derivatisierung, Elution, Identifikation und Quantifizierung der Derivate mit LC-MS/MS (Flüssigkeitschromatographie – Massenspektometrie/Massenspektometrie). KW - Formic acid KW - Acetic acid KW - VVOCs KW - Air sampling KW - DNPH PY - 2012 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-255911 UR - http://www.gefahrstoffe.de/gest/article.php?data[article_id]=65887 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 72 IS - 3 SP - 84 EP - 88 PB - Springer-VDI-Verlag CY - Düsseldorf AN - OPUS4-25591 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -