TY - CONF A1 - Wöhlecke, Andreas ED - Al-Akel, S. T1 - Aktuelle Diskussion aus dem Fachbeirat der BAM T2 - 17.Leipziger Deponiefachtagung - Planung, Bau, Betrieb, Stilllegung, Nachsorge und Nachnutzung von Deponien N2 - Das Jahr 2020 war vor allen Dingen von der Pandemie geprägt, die alle Bereiche des Lebens und Arbeitens beeinflusst hat und immer noch beeinflusst. Dies hat sich auch auf verschiedene Maßnahmen im Zusammenhang mit zugelassenen Produkten ausgewirkt. In diesem Zusammenhang sollen die Punkte kurz aufgeführt werden. Des Weiteren soll aufgezeigt werden, wie bei der Bearbeitung der Richtlinien, der Zulassungstätigkeit und Beurteilung der Produkte an der BAM und im Fachbeirat vorgegangen wird. Darüber hinaus soll noch einmal kurz auf die Entlassung aus der Nachsorgephase eingegangen werden. Am Ende sollen verschiedene aktuelle Fragestellungen des Fachbeirat aufgezeigt werden. T2 - 17. Leipziger Deponiefachtagung CY - Online meeting DA - 02.03.2021 KW - Deponie KW - Geokunststoffe KW - Kunststoffdichtungsbahn PY - 2021 SN - 978-3-943443-50-9 VL - 17. SP - 31 CY - Leipzig AN - OPUS4-52212 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wöhlecke, Andreas T1 - Aktuelle Diskussion aus dem Fachbeirat der BAM N2 - Das Jahr 2020 war vor allen Dingen von der Pandemie geprägt, die alle Bereiche des Lebens und Arbeitens beeinflusst hat und immer noch beeinflusst. Dies hat sich auch auf verschiedene Maßnahmen im Zusammenhang mit zugelassenen Produkten ausgewirkt. In diesem Zusammenhang sollen die Punkte kurz aufgeführt werden. Des Weiteren soll aufgezeigt werden, wie bei der Bearbeitung der Richtlinien, der Zulassungstätigkeit und Beurteilung der Produkte an der BAM und im Fachbeirat vorgegangen wird. Darüber hinaus soll noch einmal kurz auf die Entlassung aus der Nachsorgephase eingegangen werden. Am Ende sollen verschiedene aktuelle Fragestellungen des Fachbeirat aufgezeigt werden. T2 - 17. Leipziger Deponiefachtagung CY - Online meeting DA - 02.03.2021 KW - Deponie KW - Geokunststoffe KW - Kunststoffdichtungsbahn PY - 2021 AN - OPUS4-52213 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wittwer, Philipp A1 - Roesch, Philipp A1 - Simon, Franz-Georg T1 - Herausforderungen bei der Anwendung von Summenparametern (EOF) in der PFAS Analytik N2 - Problemstellen die bei der Arbeit mit der CIC in unserem Fachbereich aufgetreten sind und wie wir diese Probleme angegangen sind und die verwendeten Methoden weiterentwickelt haben. T2 - 25.Jahrestagung SETAC & GDCh "Umwelt 2021" CY - Online meeting DA - 07.09.2021 KW - PFAS KW - EOF KW - CIC PY - 2021 AN - OPUS4-53267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wittmar, J. A1 - Ohle, Corina A1 - Kunte, Hans-Jörg A1 - Brand, I. T1 - Effect of Ectoine on the Conformation and Hybridization of dsDNA in Monolayer Films: A Spectroelectrochemical Study JF - ChemElectroChem N2 - Lack of long-time stability of dsDNA-based supramolecular assemblies is an important issue that hinders their applications. In this work, 20 base pairs long dsDNA fragments [(dCdG)20 65%] composed of 65% dCdG and 35% dAdT nucleotides were tethered via a thiol to the surface of a gold electrode. The selfassembled (dCdG)20 -65% monolayer was immersed in solutions containing ectoine, a compatible solute. Electrochemical results showed that these monolayers were stable for one month. In situ IR spectroscopy indicated that ectoine interacts weakly with the phosphate-ribose backbone, dehydrating the phosphate groups and stabilizing the A-DNA conformation. This structural reorganization led to a reorientation of nucleic acid base pairs and a local disruption of the double-helix structure. However, the conformation and orientation of the dsDNA fragment was stable in the KW - Ectoine KW - dsDAN monolayer KW - A-DNA conformation PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-533346 DO - https://doi.org/10.1002/celc.202100816 SN - 2196-0216 VL - 8 IS - 20 SP - 3844 EP - 3854 PB - Wiley-VCH GmbH AN - OPUS4-53334 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wilke, Olaf A1 - Horn, Wolfgang A1 - Richter, Matthias A1 - Jann, Oliver T1 - Volatile organic compounds from building products - Results from six round robin tests with emission test chambers conducted between 2008 and 2018 JF - Indoor Air N2 - Emission testing of volatile organic compounds (VOC) from materials and products is commonly based on emission test chamber measurements. To ensure the comparability of results from different testing laboratories, their measurement performance must be verified. For this purpose, Bundesanstalt für Materialforschung und -prüfung (BAM) organizes an international proficiency test (round robin test, RRT) every two years using well-characterized test materials (one sealant, one furniture board, and four times a lacquer) with defined VOC emissions. The materials fulfilled the requirements of homogeneity, reproducibility, and stability. Altogether, 36 VOCs were included of which 33 gave test chamber air concentrations between 13 and 83 µg/m3. This is the typical concentration range to be expected and to be quantified when performing chamber tests. Three compounds had higher concentrations between 326 and 1105 µg/m3. In this paper, the relative standard deviations (RSD) of BAM round robin tests since 2008 are compared and the improvement of the comparability of the emission chamber testing is shown by the decrease of the mean RSD down to 28 % in 2018. In contrast, the first large European interlaboratory comparison in 1999 showed a mean RSD of 51 %. KW - Construction product KW - Emission test chamber KW - Interlaboratory comparison KW - Proficiency testing KW - Rround robin test KW - VOC emission PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-526139 DO - https://doi.org/10.1111/ina.12848 VL - 31 IS - 6 SP - 2049 EP - 2057 PB - Wiley AN - OPUS4-52613 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf T1 - Contaminants of Emerging Concern from Materials and Products: Measurement and Evaluation N2 - Test chamber measurements are an important tool to improve indoor air quality and occupational safety. Test chamber measurements are possible for a wide range of materials, products and technologies. Determination of concerning contaminants is important to ensure good indoor air quality. The detection of concerning contaminants depends on the approriate sampling and analysis. T2 - Webinar BAM-University of Birmingham CY - Online meeting DA - 24.02.2021 KW - Emerging Contaminants KW - Emission Test Chamber KW - Thermal Extraction KW - Thermal Desorption PY - 2021 AN - OPUS4-52262 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf T1 - Harmonised test standard EN 16516 - common approach for all building products for interiors N2 - The presentation gives general information about the European Standard EN 16516 “Construction products – Assessment of release of dangerous substances – Determination of emissions into indoor air”. This test standard was developed based on the mandate M/366 of the European commission and is a horizontal reference method for the determination of volatile organic compounds (VOC) from different classes of construction (building) products. Specific test conditions are to be selected by the product TCs (technical committees) in a way that a product is tested under its intended condition of use. The test is based on the use of emission test chambers which are operated at constant air change rate and climate (23°C, 50 % r.h.) over 28 days. The standard defines the conditions and requirements for the measurement including loading factor, air change rate, sampling, analysis and calculation of emission rates of the substances. A 30 m³ reference room is described which is used to calculate air concentrations from the determined emission rates. The standard EN 16516 enables the evaluation of construction products regarding their emissions into indoor air under defined and comparable conditions. The evaluation includes the determination of identified target compounds, non-identified target compounds, volatile carcinogenic compounds and the sum values TVOC, TSVOC and R. T2 - UBA Conference - Limiting health impacts of construction products regarding VOC CY - Online meeting DA - 20.04.2021 KW - Building products KW - EN 16516 KW - Emisson testing KW - Construction products PY - 2021 AN - OPUS4-58079 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Weimann, Karin A1 - Adam, Christian A1 - Buchert, M. A1 - Sutter, J. T1 - Environmental Evaluation of Gypsum Plasterboard Recycling JF - Minerals N2 - Gypsum is widely used in the construction sector and its worldwide consumption has been increasing for several decades. Depending on the life-time of the used gypsum products, an increase of gypsum in construction and demolition waste follows. Especially against the background of a circular economy, the recycling of waste gypsum is of growing importance. However, the use of recycled gypsum makes only sense if it is environmentally friendly. Therefore, an evaluation of the environmental impacts of an industrial-scale processing for the recycling of post-consumer gypsum waste was conducted. The evaluation was performed with an established life cycle assessment software. Original data provided by industry and complementary data from a database for life cycle assessments were used for the calculations. Two scenarios for recycled gypsum with different transportation distances were calculated. These results are compared with results of the environmental evaluation of gypsum derived from coal-fired power plants (FGD gypsum) and natural gypsum. The results show that utilization of recycled gypsum can be environmentally advantageous compared to the use of natural gypsum or FGD gypsum, especially in the impact categories land transformation and resource consumption (abiotic depletion potential). For most environmental impact categories the specific transportation distances have a strong influence. KW - Gypsum plasterboards KW - Gypsum waste KW - Recycled gypsum KW - Environmental evaluation PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-522321 DO - https://doi.org/10.3390/min11020101 SN - 2075-163X VL - 11 IS - 2 SP - 101 PB - MDPI CY - Basel, Schweiz AN - OPUS4-52232 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Weimann, Karin T1 - Neue Ansätze beim Gipsrecycling N2 - Gypsum is widely used in the construction sector, and its worldwide consumption has been increasing now for several decades. Currently, the gypsum demand is met up to 60% by FGD gypsum (a by-product from coal-fired power plants) in Germany. The natural gypsum deposits cover the remaining gypsum demand. Due to national climate protection goals and the related shutdown of coal-fired power plants, the FGD gypsum supply will decrease significantly in the coming years and, therefore, other gypsum sources must be found. Depending on the lifetime of the used gypsum products in the construction sector, an increase of gypsum in construction and demolition waste is to be expected. With regard to an upcoming shortage of gypsum, several approaches are being tested to recover gypsum from construction and demolition waste. Gypsum plasterboard recycling is already implemented on an industrial scale. Furthermore, new processes to recycle different types of gypsum products from construction and demolition waste are being examined. Of particular interest are different types of gypsum boards because they are well suited for selective dismantling. Therefore, they can be recovered comparatively free of impurities which is most important for the gypsum recycling. In the research project “GipsRec 2.0”, funded by the Federal Ministry of Education and Research, recycling methods for gypsum fiberboards are being investigated. Additionally, the suitability of different types of synthetic gypsum as substitutes for FGD gypsum is being considered. Currently, the quantities of recycled gypsum are not sufficient with regard to the reduction of FGD gypsum. An increase of gypsum recycling should be achieved to narrow the future gypsum gap that will occur in the near future. T2 - Berliner Konferenz Mineralische Nebenprodukte und Abfälle CY - Berlin, Germany DA - 13.09.2021 KW - Gipsabfälle KW - Gipsrecycling KW - Nachhaltigkeit PY - 2021 AN - OPUS4-53682 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - von Laar, C. A1 - Baar, C. A1 - Plarre, Rüdiger A1 - McMahon, Dino Peter T1 - Genetic relationships of local infestations by Anobium punctatum, Xestobium rufovillosum and their associated predator Korynetes caeruleus from buildings in North-Eastern Germany T2 - Proceedings IRG Annual Meeting 2021 N2 - Wood-destroying pests such as Anobium punctatum and Xestobium rufovillosum cause damage to art and cultural objects as well as to buildings. Monitoring population dynamics of pest species as well as of their naturally occurring counterparts are an essential part in the development of biological control measures as alternatives to conventional wood protection. Therefore, both the dispersal and homogeneity of pest and beneficial insect populations across multiple sites and buildings were investigated in the present study using DNA barcoding. Specifically, beetles of Anobium punctatum (de Geer 1774) (Coleoptera, Ptinidae), Xestobium rufovillosum (de Geer, 1974) (Coloeptera, Ptinidae), and Korynetes caeruleus (de Geer 1775) (Coleoptera, Cleridae) were collected from buildings at four different sites in Mecklenburg-Western Pomerania, North-Eastern Germany. DNA analysis was performed using mitochondrial cytochrome c oxidase subunit I (COI). For A. punctatum, low base pair variability was found in the gene segment studied (4-5 SNPs) within one building (Greven) and between four spatially separated sites. Conversely, in X. rufovillosum, the sequences from two sites studied were homogeneous within a site but differed between locations by nine base pair positions (SNPs). The main result of this study is that the pests A. punctatum and X. rufovillosum showed a higher variability in the investigated gene segment than the natural counterpart K. caeruleus. T2 - IRG52 Webinar on Wood Protection CY - Online meeting DA - 01.11.21 KW - Anobium punctatum KW - Xestobium rufovillosum KW - Korynetes caeruleus KW - DNA barcode PY - 2021 SN - 2000-8953 VL - 21 SP - 1 EP - 11 PB - The International Research Group on Wood Protection CY - Stockholm, Sweden AN - OPUS4-54197 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -