TY - JOUR A1 - Brandt, S. A1 - Brozowski, Frank A1 - Horn, Wolfgang A1 - Plehn, W. A1 - Müller, B. T1 - Weiterentwicklung des Geruchsmessverfahrens für Bauprodukte (Teil II): Anwendung eines Adapters und vereinfachtes Bewertungsverfahren T1 - Further Development of the Odour Measurement Method for Building Products (Part II) N2 - Zur Weiterentwicklung der Probenpräsentation wurde ein Adapter entwickelt, der Emissionsprüfkammer und Bewertungstrichter miteinander verbindet und dadurch eine der direkten Messung vergleichbare Geruchsbewertung ermöglicht. Die analytischen Messungen zeigen, dass es kaum Unterschiede in der Zusammensetzung der Probenluft in der Kammer im Vergleich zum Probenbehälter gibt. Bei den olfaktorischen Messungen kam es jedoch bei der Bewertung der Probenluft mit Hilfe des Adapters zu Minderbefunden. Anschließende Untersuchungen zeigten, dass beim Ausschalten des Geräts Umgebungsluft über den Trichter in den Adapter strömt und zu einer Verdünnung der Probenluft führt. Um dies zu vermeiden, werden derzeit weitere Messungen durchgeführt. Eine weitere Versuchsreihe wurde durchgeführt, um den Messaufwand bei der Bewertung der empfundenen Intensität zu reduzieren. Die entwickelte „größer-oder-kleiner/gleich“ Abfrage kann hier hilfreich sein. Die Untersuchungen im Luftqualitätslabor und im Rahmen eines Ringversuches mit verschiedenen Laboren, zeigen, dass die Abfrage in fast allen Fällen zu den gleichen Ergebnissen führt, wie die normgerechte aber aufwendigere Ermittlung der empfundenen Intensität mithilfe des Vergleichsmaßstabes. N2 - For technical improvement of sample presentation an adapter was developed to connect the emission test chamber with the evaluation funnel and thus enabling a more direct measurement. The analytical measurements demonstrate that the air has a very similar composition sampled at the funnel or in the emission test chamber. The results of the olfactory measurements show overall that the intensities determined using the adapter are often reported as lower. Further investigations have shown that air backflow via the funnel into the sample container of the adapter may be the cause. This has to be avoided in future. Another experimental series was carried out to reduce the measurement effort of evaluation of perceived intensity. Here application of the developed ‘greater than, or less than/equal to’ survey could be helpful. The results of the measurements in the air quality lab and in the frame of a round robin test indicate, that the survey leads to the same evaluation as the more complex determination of perceived intensity with standard method. KW - Geruchsmessung KW - VOC-Emission KW - Bauprodukte KW - Bewertungsverfahren PY - 2022 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-549875 UR - http://www.gefahrstoffe.de SN - 0949-8036 SN - 1436-4891 VL - 82 IS - 3-4 SP - 83 EP - 89 PB - VDI Fachmedien CY - Düsseldorf AN - OPUS4-54987 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Horn, Wolfgang A1 - Hahn, Oliver T1 - Neues BAM-Zertifizierungsverfahren für emissionsarme Materialien zum Bau von Museumsvitrinen N2 - Museumsvitrinen sollen Kunst- und Kulturgut „ins rechte Licht“ setzen und vor Diebstahl oder Vandalismus schützen. Vergleicht man historische Schauvitrinen, die zumeist aus einfachen Glasscheiben in Holzrahmungen bestehen, mit heutigen Konstruktionen, lässt sich eine Entwicklung zu hochtechnisierten Gebilden ablesen, die deutlich mehr Ansprüchen genügen müssen als in der Vergangenheit. Zahlreiche Beispiele verdeutlichen, dass Kunstwerke nicht nur außerhalb, sondern auch innerhalb von Museen oder Archiven ungünstigen Umwelteinflüssen ausgesetzt sind. So können Einbauten bzw. Dekorationen in Ausstellungsräumen, Aufbewahrungsbehältnisse in Depoträumen oder Ausstellungsvitrinen flüchtige Substanzen, sogenannte VOCs (Volatile Organic Compounds) freisetzen, die zu irreversiblen Veränderungen an den Objekten führen und diese schädigen. Hierzu zählen organische Säuren, wie Ameisen- oder Essigsäure, aber auch Verbindungen, die Sulfide enthalten. Hier wird die an der BAM entwickelte BEMMA-Bewertungsmethode vorgestellt, die von Museen verwendet werden kann Materialien mit einem geringeren Emissionspotential auszusuchen. KW - Museum KW - VOC-emission KW - BEMMA KW - Vitrine PY - 2020 SN - 2194-3648 VL - 2020 IS - zwei SP - 80 EP - 81 PB - SchmittART CY - Leipzig AN - OPUS4-51489 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Horn, Wolfgang T1 - The BEMMA-Scheme helpful for low VOC inside 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 maintained. Typically, air exchange rates are often smaller than 0.1 d-1, which can result in rising concentrations of potential harmful VOC inside of the display cases due to emissions from materials. Especially organic acids, e. g. formic or acetic acid which can emit from e.g. sealing materials or wood-based materials, can produce damage of cultural objects. In 2012 BAM introduced a procedure which is called: BEMMA-Scheme (Bewertung von Emissionen aus Materialien für Museums¬ausstattungen) which stands for: “Assessment of Emissions from Materials for Museum Equipment”. Regarding the testing procedure only construction materials were evaluated, not the display cases their self. Micro chambers are used for VOC emission tests of display case construction materials, e.g. plastics, sealing materials, coatings, textiles and others. Each sampling procedure is carried out in duplicate. Emissions like formic acid, acetic acid, formaldehyde, piperidine-derivates and oximes are excluded and the sum of emissions of VVOCs, VOCs and SVOCs is limited. For a positive assessment all listed criteria must be fulfilled; otherwise the display construction material fails the BEMMA scheme. T2 - Indoor Air Quality in Heritage and Historic Environments CY - Online meeting DA - 12.10.2020 KW - Museum KW - VOC-emission KW - BEMMA KW - Display case PY - 2020 AN - OPUS4-51470 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Richter, Matthias A1 - Horn, Wolfgang A1 - Juritsch, Elevtheria A1 - Klinge, A. A1 - Radeljic, L. A1 - Jann, Oliver T1 - Natural building materials for interior fitting and refurbishment - What about indoor emissions? N2 - Indoor air quality can be adversely affected by emissions from building materials, consequently having a negative impact on human health and well-being. In this study, more than 30 natural building materials (earth dry boards and plasters, bio-based insulation materials, and boards made of wood, flax, reed, straw, etc.) used for interior works were investigated as to their emissions of (semi-) volatile organic compounds ((S)VOC), formaldehyde, and radon. The study focused on the emissions from complete wall build-ups as they can be used for internal Partition walls and the internal insulation of external walls. Test chambers were designed, allowing the compounds to release only from the surface of the material facing indoors under testing Parameters that were chosen to simulate model room conditions. The emission test results were evaluated using the AgBB evaluation scheme, a procedure for the health-related evaluation of construction products and currently applied for the approval of specific groups of building materials in Germany. Seventeen out of 19 sample build-ups tested in this study would have passed this scheme since they generally proved to be low-emitting and although the combined emissions of multiple materials were tested, 50% of the measurements could be terminated before half of the total testing time. KW - Bio-based insulation KW - Earthen building materials KW - Volatile organic compounds KW - Semivolatile organic compounds KW - Radon PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-519634 DO - https://doi.org/10.3390/ma14010234 VL - 14 IS - 1 (Special issue: Measurement of the environmental impact of materials) SP - 234-1 EP - 234-14 PB - MDPI CY - Basel AN - OPUS4-51963 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Brandt, S. A1 - Müller, B. A1 - Brozowski, F. A1 - Plehn, W. A1 - Horn, Wolfgang T1 - Weiterentwicklung des Geruchsmessverfahrens für Bauprodukte T1 - Further development of the odour measurement method for building products N2 - Bauprodukte und Einrichtungsgegenstände für Innenräume, wie Bodenbeläge und Wandpaneele, sollen das Wohlbefinden und die Gesundheit der Raumnutzerinnen und -nutzer nicht durch das Ausdünsten von Geruchsstoffen stören. Mit der Geruchsprüfung nach ISO 16000-28 „Innenraumluft - Bestimmung der Geruchsstoffemissionen aus Bauprodukten mit einer Emissionsprüfkammer“ wird der Produktgeruch zu einer messbaren Größe. So kann z. B. die empfundene Intensität, also die Stärke eines Geruchseindruckes, mit Hilfe eines Vergleichsmaßstabes von Probandinnen und Probanden ermittelt werden. Im hier vorgestellten Projekt werden Vorschläge zur Weiterentwicklung der Methode vorgestellt, um im Ergebnis die Reproduzierbarkeit der Messergebnisse weiter zu verbessern. Dabei werden vor allem das Probenpräsentationssystem und die Bewertungsmethodik für die empfundene Intensität bei der Bewertung von Bauprodukten gemäß AgBB-Schema betrachtet, da diese einen wesentlichen Einfluss haben. N2 - Emissions or odours occurring from building products and furnishings for interiors, like floor coverings or wall panels, should not have a negative impact on well-being or health. Odours can be measured applying the standard ISO 16000-28 „Indoor air - Determination of odour emissions from building products using test chambers” It describes among other procedures the assessment of perceived intensi-ty with comparative scale by a group of panellists. In the study presented here, proposals for further technical development of the methodology are discussed to increase the reproducibility of measurement results. The sampling procedure and evaluation method of perceived intensity are investigated in particular because they have a major influence at the assessment of construction products applying the procedure of the Committee for Health Evaluation of Building Products. KW - Geruchsmessung KW - Emissionen KW - Bauprodukte KW - VOC PY - 2021 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-527458 UR - http://www.gefahrstoffe.de SN - 0949-8036 SN - 1436-4891 VL - 81 IS - 3-4 SP - 151 EP - 155 PB - VDI Fachmedien CY - Düsseldorf AN - OPUS4-52745 LA - deu 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 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 - Horn, Wolfgang T1 - Selection of low emittiong material for the construction of display cases based on the BEMMA procedure 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 maintained. Typically air exchange rates are often smaller than 0.1 d 1, which can result in rising concentrations of potential harmful immissions inside of the display cases due to emissions from materials. Especially high concentrations of organic acids, which can emit from e.g. sealing materials, can produce damage of cultural objects. In 2012 BAM introduced a procedure witch is called: BEMMA-Scheme (Bewertung von Emissionen aus Materialien für Museumsausstattungen) which stands for: “Assessment of Emissions from Materials for Museum Equipment”. Micro chambers are used for VOC emission tests of display case construction materials, e.g. textiles, plastics, sealing material, coatings and others. Each sampling procedure is carried out in duplicate. Emissions like formic acid, acetic acid, formaldehyde and oximes are excluded and the sum of emissions of VVOCs, VOCs and SVOCs is limited. For a positive assessment all listed criteria must be fulfilled; otherwise the display construction material fails the BEMMA scheme. The BEMMA scheme is not a guarantee for an emission free display case, but a necessary requirement for the choice of suitable materials for emission and immission reduced display cases. T2 - Materials Testing Symposium CY - New York City, USA DA - 06.11.2019 KW - Museum KW - Emission KW - Dispay case KW - BEMMA KW - VOC PY - 2019 AN - OPUS4-49589 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Richter, Matthias A1 - Horn, Wolfgang A1 - Mölders, N. A1 - Sauerwald, T. A1 - Schultealbert, C. A1 - Mull, B. T1 - Two new promising approaches for quality assurance measures for materials emissions testing N2 - Two new approaches towards an emission reference material for use in quality assurance measures for materials emissions testing were developed and intensively tested. The overall goal was to obtain solid materials with homogenous and reproducible (S)VOC release. Since the application in inter-laboratory comparisons is aimed at, it should furthermore be long-term stable to ensure safe shipment to the customer without sustaining compound losses. In the first approach, thermoplastic polyurethane (TPU) was impregnated with the VOC texanol under high-pressure with liquid CO2 as solvent. In the second, styrene (VOC) and the SVOC 2,6-diisopropylnaphthalene (DIPN) were spiked into vacuum grease (VG) and a mixture of paraf-fin/squalane (P/S). For the prediction of the emission rates a finite element model (FEM) was developed for the VG and P/S type materials. All requirements for reference materials were fulfilled, whereas the TPU samples need to be aged for about 10 days until repeatable and re-producible emission rates were obtained. T2 - Indoor Air 2018 CY - Philadelphia, PA, USA DA - 22.07.2018 KW - Emission reference material KW - Volatile organic compounds KW - CO2 assisted impregnation KW - FEM model PY - 2018 SP - 1 EP - 8 AN - OPUS4-45610 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Brandt, S. A1 - Brozowski, F. A1 - Horn, Wolfgang A1 - Plehn, W. A1 - Müller, B. T1 - New developments in odour testing: Adapter connects emission test chamber and funnel N2 - Healthy and energy efficient buildings must be free from disturbing odours. Odour emissions from building materials can be measured with the well-known and accepted standard ISO 16000-28 “Indoor air – Part 28: Determination of odour emissions from building products using test chambers”. For commonly used emission test chambers the sample air is collected in containers (bags) and presented to a group of panel members for the purpose of evaluating the odour. A standard sets requirements for the on-demand presentation in detail. These include the validation procedure for container materials, pre-treatment of bags, details on storage of filled bags and how to carry out the measurements. However, although these measures are proven in practice, incorrect measurements are still possible. Also errors can occur due to a very complex measurement procedure. So, there is a great need for research into how the odour samples are presented. The proposal planned to be presented will introduce a new development in sample provision by using an adapter which enables collection and provision of sample air without storage or transport of bags. The adapter is a sample container which is permanently positioned on the emission test chamber´s outlet and continuously filled with sample air flowing through it. The flow is briefly interrupted at the time when a sample is taken by a panel member for the test. The size of the container is sufficient to provide enough sample air for evaluation by at least one panel member via a funnel. Since sampling and presentation are technically connected, it means you can almost do away with storage or transportation and thus it can be presented almost unchanged to the panelmembers. The aim is to reduce measurement errors in the odour samples provision process and the improvement of measurement reproducibility. The paper presents the construction of the adapter as well as the results of emission and odour tests carried out so far. T2 - CLIMA 2022 The 14th REHVA HVAC World Congress CY - Rotterdam, The Netherlands DA - 22.05.2022 KW - Perceived Intensity KW - Emissionen KW - Geruch KW - Bauprodukte PY - 2022 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-556192 DO - https://doi.org/10.34641/clima.2022.168 SP - 1 EP - 5 PB - TU Delft open CY - Delft, Niederlande AN - OPUS4-55619 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Musyanovych, A. A1 - Grimmer, Christoph A1 - Sadak, A. E. A1 - Heßling, L. A1 - Bilsel, M. A1 - Horn, Wolfgang A1 - Richter, Matthias T1 - Polymeric Capsules with VOCs for Controlled Emission N2 - Micro-(nano-)encapsulation technology involves building of a barrier between the core and the environment and offers a number of benefits to preserve the functional and physicochemical properties of core material. Tremendous progress has been made in synthesizing well-defined capsules to achieve desired properties such as particle size, chemical composition, and controlled release of the payload. Encapsulation of volatile organic compounds (VOCs) that could evaporate with a defined rate is of immense interest for application in emission reference materials (ERM). These are urgently needed for quality assurance and quality control purposes (QA/QC) required by test standards for the determination of chemical emissions of construction and other materials for interior use. As such ERMs are hardly available on the market, the EU-funded EMPIR project MetrIAQ [1] was started to fill this gap by developing a material with temporally constant emission of VOCs typically found in indoor air. Different capsules in a size range between 5 and 50 μm were synthesized through an interfacial polyaddition/polycondensation reaction in direct (water-in-oil) system. As VOC several types of hydrophobic liquid materials were used. After synthesis, the morphology and physicochemical properties of capsules were characterized by electron microscopy, FTIR and DSC/TGA. An encapsulation efficiency up to 90% could be reached. The emission kinetic of volatile agents was studied in emission test chambers at 23 °C and 50% RH for 14 days. First results indicate that variation of the cross-linking grade of the shell material is one important parameter to adjust the desired emission rate. The overall aim is to achieve a consistent emission profile that decreases by less than 10 % over a target period of at least 14 days. T2 - 36th European Colloid & Interface Society Conference CY - Chania, Crete, Greece DA - 04.09.2022 KW - Capsules KW - Volatile organic compound KW - Polymer KW - Material emissions KW - Reference materials PY - 2022 AN - OPUS4-56039 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -