TY - CONF A1 - Seeger, Stefan A1 - Osan, J. A1 - Czömpöly, O. A1 - Gross, A. A1 - Stoßnach, H. A1 - Stabile, L. A1 - Ochsenkuehn-Petropoulou, M. A1 - Tsakanika, L. A. A1 - Lymperopoulou, T. A1 - Goddart, S. A1 - Fiebig, M. A1 - Gaie-Levrel, F. A1 - Rissler, J. A1 - Kayser, Y. A1 - Beckhoff, B. T1 - Element mass concentrations in ambient aerosols, a comparison of results from filter sampling & ICP-MS ans cascade impactor sampling & mobile total reflection X-RAY fluorescence spectroscopy N2 - Quantitative chemical analysis of airborne particulate matter (PM) is vital for the understanding of health effects in indoor and outdoor environments and required by EU air quality regulations. Typically, airborne particles are sampled on filters, followed by lab-based analysis, e.g., with inductively coupled plasma mass spectrometry (ICP-MS). Within the EURAMET EMPIR AEROMET project, cascade impactor aerosol sampling was combined with on-site total reflection X-ray fluorescence (TXRF) spectroscopy. The study aimed at a proof of principles for this new mobile and on-size tool for the quantification of aerosol element compositions and element mass concentrations within short time intervals of less than 12 h. In a field campaign the method’s technical feasibility could be demonstrated. The TXRF results were traced back to a stationary, reference-free XRS setup in the laboratory of the German national metrology institute PTB at the BESSY II electron storage ring in Berlin, Germany. Simultaneous PM10-filter sampling, followed by standardized lab-based analysis, allowed for a comparison of the field campaign data of both methods. As Fig. 1 shows, the correspondence between PM10 filter sampling and ICP-MS, and on the other hand, cascade impactor sampling and TXRF is quite encouraging. However, for some of the analysed elements, e.g. V and Pb, the observed deviations are higher than expected and this highlights the fact, that spectral deconvolution strategies for TXRF on cascade impactor samples still need some improvement. This work was supported by the EMPIR programme, co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme, through grant agreements 16ENV07 AEROMET and 19ENV08 AEROMET II T2 - 12th International Conference on Instrumental Methods of Analysis (IMA-2021) CY - Athens, Greece DA - 20.09.2021 KW - Aerosol KW - TXRF KW - Reference method KW - Cascade impactor KW - Ambient aerosols KW - Air quality monitoring KW - Element mass concentration KW - Size resolved chemical composition KW - Time resolved chemical composition KW - ICP-MS PY - 2021 AN - OPUS4-53597 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dutschke, Andreas A1 - Seeger, Stefan A1 - Kurth, Lutz A1 - Panne, Ulrich A1 - Lohrer, Christian T1 - Emissions of reaction products and sound from outdoor and indoor firework displays JF - Journal of pyrotechnics N2 - This work presents results of investigations towards the emission of chemical reaction products and sound pressure during an outdoor and an indoor firework display. Potentially harmful and toxic gases, and aerosols, were measured as well as sound pressures. Aerosols were measured with a Differential Mobility Analyzer (DMA) as well as a Laser Particle Counter. The focus was on particles with diameters between 11 nm and 20 µm. A transportable Fourier Transform Infrared (FTIR) spectroscopy detector registered the concentrations of emitted reaction gases, simultaneously. During the outdoor firework display, peak particle concentrations of >550000 particles cm-3, equivalent to a mass concentration of approximately 3.95 mg m-3, were detected, revealing a concentration maximum at approximately 175 nm particle diameter. The time-averaged particle mass concentration did not exceed 1.58 mg m-3 over 15 minutes. Due to the large distances (110 m) to the firing points, no significant harmful or toxic gas concentrations were measured during the entire firework display. In contrast, concentrations of sulphur dioxide (SO2) rose after an indoor firework display in a large event hall. On two days, more than 23000 particles cm-3 (which equates to a mass concentration of approximately 0.41 mg m-3) were detected when the hall ventilation was turned off, and more than 11000 particles cm-3 (which equates to a mass concentration of approximately 1.18 mg m-3) when the hall ventilation was activated. Concentration maxima appeared at approximately 300 nm particle diameter. The time-averaged particle concentrations in this case did not exceed 0.56 mg m-3 (over 15 minutes). KW - Pyrotechnic articles KW - Aerosols KW - Combustion gases PY - 2009 SN - 1082-3999 IS - 28 SP - 78 EP - 93 CY - Whitewater, Colo. AN - OPUS4-20796 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Seeger, Stefan A1 - Kurth, Lutz A1 - Schmidt, Martin A1 - Kaiser, Michael A1 - Stattaus, Kim A1 - Panne, Ulrich T1 - Determination of reaction products during a large firework display in Germany T2 - 11th international symposium on fireworks T2 - 11th International symposium on fireworks CY - Puerto Vallarta, México DA - 2009-04-20 KW - Firework display KW - Reaction products KW - Particles KW - Sound pressure PY - 2009 SN - 978-0-9734123-8-3 SP - 50 EP - 63 AN - OPUS4-19383 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Seeger, Stefan A1 - Rasch, Fabian A1 - Erdmann, Kerstin A1 - Brödner, Doris A1 - Wilke, Olaf T1 - Weiterentwicklung des Prüfwertes für Ultrafeinstaubpartikel beim Umweltzeichen Blauer Engel für Drucker T2 - UBA-Texte N2 - Berichtet wird über ein abgeschlossenes Folgeprojekt zu vorangegangenen Forschungsprojekte zum gleichen Thema. In diesem Projekt wurde das Messverfahren und der Prüfwert für die Partikelemission aus Bürogeräten (siehe Vergabegrundlage DE-UZ 205, Anhang S-M) validiert und weiterentwickelt. Dies geschah erstens durch Auswertung der Qualität der im Zuge der Antragsbearbeitung für das Umweltzeichen beim RAL vorgelegten Prüfberichte der zugelassenen Prüfinstitute und - basierend darauf - durch Erarbeitung von technisch-methodischen Veränderungsvorschlägen für die Prüfung der chemischen Emissionen, inklusive der Partikelemissionen. Zweitens wurde zur Beurteilung der Veränderung der Emissionen aktueller gegenüber älteren Geräte-generationen ein nicht repräsentativer Pool von table-top-Laserdruckern aufgebaut und die chemischen Emissionen wurden gemäß DE-UZ-205, Anhang S-M gemessen. Ergänzend wurde eine quantitative chemische Analyse der anorganischen Feststoffe - insbesondere der Metalle - in den emittierten Aerosolen vorgenommen die Feststoffgehalte um 2 Massen-% ergaben. Diese Ergebnisse wurden gemeinsam mit neueren wissenschaftlichen Untersuchungen zur gesundheitlichen Bewertung der Emissionen aus Laserdruckern ausgewertet, es besteht kein Handlungsbedarf hinsichtlich einer Veränderung von Prüfkriterien und Prüfwerten. Drittens wurde untersucht und bestätigt, dass mit dem Ziel eines zukünftigen Umweltzeichens das Emissionsverhalten Kunststoff verarbeitender 3D-FDM-Drucker und/oder die darin verarbeiteten Verbrauchsmaterialien (Filamente) mit dem für Laserdrucker entwickelten Mess- und Prüfschema charakterisiert und quantifiziert werden können. Untersuchungen an Stereo-lithografie (SLA)-Druckern und Vorrichtungen zur Nach-Aushärtung (Curing Units) ergaben keine nachweisbaren Partikelemissionen. KW - Blauer Engel KW - Bürogeräte mit Druckfunktion KW - Emissionen KW - Aerosole KW - Schadgase PY - 2020 UR - https://www.umweltbundesamt.de/publikationen/weiterentwicklung-des-pruefwertes-fuer SN - 1862-4804 VL - 217 SP - 5 EP - 82 PB - Umweltbundesamt CY - Dessau-Roßlau AN - OPUS4-51745 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Seeger, Stefan A1 - Kurth, Lutz T1 - Gasförmige und feste Reaktionsprodukte beim Abbrand von Indoor-Feuerwerk JF - Chemie - Ingenieur - Technik N2 - Beim Abbrand einzelner Feuerwerkskörper für den Indoor-Bereich wurden als gasförmige Hauptreaktionsprodukte unter anderem CO2, CO, COS, nitrose Gase, diverse Kohlenwasserstoffe und Schwefelverbindungen (teilweise in sehr hohen Konzentrationen) mit Hilfe der FTIR-Spektroskopie nachgewiesen. Zusätzliche Feinstaubmessungen parallel zum Abbrand in einem großen Raum illustrierten die zeitweise hohen Partikelkonzentrationen an unterschiedlichen Messpunkten. KW - Feinstaub KW - FTIR-Spektroskopie KW - Gase KW - Indoor-Feuerwerk KW - Kohlenwasserstoffe KW - Schwefelverbindungen PY - 2009 DO - https://doi.org/10.1002/cite.200800122 SN - 0009-286X SN - 1522-2640 VL - 81 IS - 1-2 SP - 167 EP - 175 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-18745 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Böhm, Hans A1 - Söhring, Guido A1 - Müller, Werner ED - Cancelli, A. T1 - Long term testing of geomembranes and geotextiles under shear stress T2 - Proceedings of the Second European Geosynthetics Conference T2 - 2nd European Geosynthetics Conference ; 2nd EuroGeo 2000 CY - Bologna, Italy DA - 2000-10-15 KW - Geomembranes KW - Geotextiles PY - 2000 SN - 88-555-2560-3 VL - 2 SP - 607 EP - 612 PB - Pàtron CY - Bologna AN - OPUS4-854 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Anforderungen an Dichtungskontrollsysteme aus der Sicht des Anwenders T2 - 15. Fachtagung - Die sichere Deponie - Wirksamer Grundwasserschutz mit Kunststoffen T2 - 15. Fachtagung "Die Sichere Deponie" CY - Würzburg, Deutschland DA - 1999-02-18 KW - Dichtungskontrollsysteme KW - Oberflächenabdichtungen PY - 1999 IS - 15 SP - 1 EP - 13 PB - SKZ CY - Würzburg AN - OPUS4-752 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Barthel, Mathias T1 - Prüfverfahren Blauer Engel für Bürodruckgeräte unter Berücksichtigung ultrafeiner Partikelemissionen, Abschluss des Ufoplan-Vorhabens T2 - 18. WaBoLu-Innenraumtage, UBA Berlin T2 - 18. WaBoLu-Innenraumtage, UBA Berlin CY - Berlin, Germany DA - 2011-05-30 PY - 2011 AN - OPUS4-24377 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Seeger, Stefan A1 - Müller, Wolfgang ED - Dixon, N. T1 - Theoretical approach to designing protection - Selecting a geomembrane strain criterion T2 - Geosynthetics: protecting the environment T2 - 1st IGS UK Chapter National Geosynthetics Symposium CY - Nottingham, England, UK DA - 2003-06-17 PY - 2003 SN - 0-7277-3234-X SP - 137 EP - 151 PB - Telford CY - London AN - OPUS4-2564 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan T1 - Anforderungen an Dichtungskontrollsysteme in Oberflächenabdichtungen von Deponien - Empfehlungen des Arbeitskreises Dichtungskontrollsysteme (AKDKS) JF - Amts- und Mitteilungsblatt der Bundesanstalt für Materialprüfung PY - 2001 SN - 0340-7551 IS - 1 SP - 1-17 und Anhänge 1-3 PB - Bundesanstalt für Materialprüfung CY - Berlin AN - OPUS4-7579 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Barthel, Mathias A1 - Fiedler, J. A1 - Giacomini, M. A1 - Moriske, H.-J. A1 - Seeger, Stefan A1 - Thurner, J.-U. T1 - Partikelemissionen aus Laserdruckern - Aktueller Sachstand JF - Umwelt und Mensch, Informationsdienst : UMID N2 - Partikelemissionen aus Laserdruckern sind seit längerem bekannt und wurden bislang als Feinstaubmasse bei der Prüfwertvergabe für den Blauen Engel begrenzt. Seit einigen Jahren weiß man, dass neben den Feinstaubpartikeln auch ultrafeine Partikel beim Betrieb von Laserdruckern emittiert werden. Diese Emissionen lassen sich nur eingeschränkt bis gar nicht über Nachrüstfilter am Druckgerät minimieren. Das Umweltbundesamt (UBA) hat dies zum Anlass genommen, die Prüfvorgaben für den Blauen Engel im Hinblick auf die Erfassung ultrafeiner Partikel anzupassen und zu verschärfen. UBA hat hierzu einen Forschungsauftrag an die Bundesanstalt für Materialforschung und -prüfung (BAM) vergeben. Testverfahren und Prüfvorgaben sind nunmehr erarbeitet und werden im Beitrag vorgestellt. Die geänderten Prüfbedingungen sollen ab 2013 in die Prüfvorgabe eingeführt werden. Etwa drei Viertel der derzeit am Markt erhältlichen Laserdrucker werden die strengen Prüfvorgaben nicht erfüllen können. N2 - Particle emissions from laser printers are since longer time well-known. The total particulate mass (fine dust) is already limited within the Blue Angel basic criteria. For some years we know that besides fine particles (FP) also the ultrafine particle (UFP) fraction is relevant for health impact assessment. These particles are also emitted by laser printing devices. Particle filter systems, fixed outside the printing device housings, do not provide a general solution to the minimization of UFP emissions. The Federal Environment Agency of Germany (UBA) therefore decided to update the existing test procedure and its basic criteria for the Blue Angel ecolabel by considering also the number of ultra fine particles. For this project, UBA contracted the Federal Institute for Materials Research and Testing (BAM). As an outcome, the draft proposal for the extended test procedure along with particle emission limits is presented here. The changed basic criteria are to be set into force by January 2013. It is expected that approximately three-quarters of the printers currently available on the market will not meet these strict test criteria. KW - Laserdrucker KW - Blauer Engel KW - UFP KW - FP KW - Partikelemissionen PY - 2012 SN - 2190-1120 SN - 2190-1147 VL - 1 SP - 23 EP - 29 PB - BfS CY - Berlin AN - OPUS4-25922 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Konzepte zur ISO-Kalibrierung der Messung von Partikelgrößen und Partikelanzahlkonzentrationen T2 - Symposium: Ultrafeine Partikel (UFP) in der städischen Außenluft T2 - Symposium: Ultrafeine Partikel (UFP) in der städischen Außenluft CY - Berlin, Germany DA - 2012-05-24 PY - 2012 AN - OPUS4-26067 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan A1 - Bresch, Harald T1 - Partikelemissionen aus Laserdruckern auf der Spur JF - Labor-Praxis KW - Laserdrucker KW - Ultrafeinstaub KW - Partikelemission PY - 2008 SN - 0344-1733 SN - 1610-8256 IS - 4 SP - 26 EP - 28 PB - Vogel CY - Würzburg AN - OPUS4-18563 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Seeger, Stefan A1 - Kurth, Lutz T1 - Towards the reaction products of indoor fireworks T2 - 11th international symposium on fireworks T2 - 11th International symposium on fireworks CY - Puerto Vallarta, México DA - 2009-04-20 KW - Reaction products KW - Particles KW - Smoke gases KW - FTIR PY - 2009 SN - 978-0-9734123-8-3 SP - 66 EP - 79 AN - OPUS4-19384 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Long term waste containment - A challenge to geotextiles and geomembranes made of plastic materials T2 - International Symposium on Advanced Materials T2 - International Symposium On Advanced Materials For Functional Manifestation of Frontier And Environmental Consciousness CY - Tokyo, Japan DA - 1997-09-01 PY - 1997 SP - 1(?) EP - 8(?) AN - OPUS4-7581 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Müller, Werner A1 - Seeger, Stefan A1 - Thies, Martina T1 - Langzeit-Scherfestigkeit von Geokunststoffen aus mehreren Komponenten T2 - 11. Braunschweiger Deponie- und Dichtwandseminar 2004 (Mitteilung des Instituts für Grundbau und Bodenmechanik, Technische Universität Braunschweig 74) T2 - 11. Braunschweiger Deponie- und Dichtwandseminar ; 11. Braunschweiger Deponieseminar CY - Braunschweig, Deutschland DA - 2004-03-11 KW - Scherfestigkeit KW - Beständigkeit KW - Geokunststoffe KW - Prüftechnik PY - 2004 UR - http://www.deponie-stief.de/pdf/fachlit_pdf/2004tubs_mueller_scherfestigkeit.pdf SN - 3-927610-65-8 IS - 74 SP - 213 EP - 231 PB - Inst. für Grundbau und Bodenmechanik, TU Braunschweig CY - Braunschweig AN - OPUS4-3361 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Müller, Werner A1 - Seeger, Stefan A1 - Thies, Martina A1 - Gerloff, Constantin ED - Floss, R. T1 - Long-Term Shear Strength of Multilayer Geosynthetics T2 - Geotechnical engineering with geosynthetics - proceedings of the Third European Geosynthetics Conference T2 - 3rd European Geosynthetics Conference "EuroGeo 3" - Geotechnical Engineering with Geosynthetics CY - Munich, Germany DA - 2004-03-01 PY - 2004 SN - 3-00-013305-4 VL - II SP - 429 EP - 434 PB - Deutsche Gesellschaft für Geotechnik CY - München AN - OPUS4-3326 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Seeger, Stefan A1 - Müller, Werner A1 - Mohr, Kerstin ED - Delmas, P. T1 - Long term tensile testing of polyolefin fibers in geotextiles T2 - Geosynthetics / Vol. 4 Properties of geosynthetics T2 - 7th International Conference on Geosynthetics (ICG) CY - Nice, France DA - 2002-09-22 PY - 2002 SN - 90-5809-529-0 VL - 4 SP - 1459 EP - 1462 PB - Balkema CY - Lisse AN - OPUS4-1532 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Müller, Werner A1 - Seeger, Stefan A1 - Thies, Martina ED - Knipschild, F. W. T1 - Langzeit-Scherfestigkeit von Geokunststoffen aus mehreren Komponenten T2 - 19. Fachtagung - Die sichere Deponie - Sicherung von Deponien und Altlasten mit Kunststoffen T2 - 19. Fachtagung "Die Sichere Deponie" CY - Würzburg, Deutschland DA - 2003-02-13 PY - 2003 IS - 19 SP - L1 EP - L14 PB - SKZ CY - Würzburg AN - OPUS4-2806 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner A1 - Seeger, Stefan T1 - Requirements for Leak Monitoring Systems for HDPE Geomembrane Landfill Liners JF - Land Contamination & Reclamation KW - Electric leak monitoring system KW - Landfill lining KW - HDPE geomembrane KW - Leaks and holes PY - 2002 DO - https://doi.org/10.2462/09670513.610 SN - 0967-0513 VL - 10 IS - 2 SP - 91 EP - 99 PB - EPP Publ. CY - Richmond AN - OPUS4-1473 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Anforderungen an Dichtungskontrollsysteme aus der Sicht des Anwenders T2 - 15. Tagung "Die sichere Deponie" T2 - 15. Tagung "Die sichere Deponie" CY - Würzburg, Germany DA - 1999-02-18 PY - 1999 AN - OPUS4-3294 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan A1 - Müller, Werner T1 - Requirements and Testing of Protective Layer Systems for Geomembranes JF - Geotextiles and Geomembranes N2 - Geomembranes used in basal liner systems of landfills must not be damaged by the coarse gravel of the standard drainage layer. Therefore, the geomembrane must be protected against mechanical damage and strain by means of a suitable protective layer. The main requirements for this protective layer as well as the long-term durability of the mineral and geotextile components are compiled in the guideline recently released by German authorities. An overview is given on the existing types of protective layer systems with the state-of-the-art testing, the requirements and selected results of related research programs. PY - 1996 SN - 0266-1144 VL - 14 IS - 7-8 SP - 365 EP - 376 PB - Elsevier CY - Amsterdam AN - OPUS4-7583 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Seeger, Stefan T1 - Granta CES Web Software Helps Promote Natural Fibre Eco-Materials N2 - Dr. Stefan Seeger of the German Federal Institute for Materials Research and Testing (Bundesanstalt für Materialforschung und -prüfung - BAM) tells of his successful experience using Granta's CES software to make an eco-materials knowledge resource for automotive, construction, and other industries in the Berlin region. T2 - Abfallwirtschaft für Wien CY - Wien, Österreich DA - 2004-06-24 PY - 2005 SP - 1 EP - 2 PB - Granta CY - Cambridge AN - OPUS4-7582 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Seeger, Stefan A1 - Müller, Werner ED - de Groot, M. T1 - Limits of stress and strain: Design criteria for protective layers for geomembranes in landfill liner systems T2 - Geosynthetics : applications, design and construction T2 - 1st European Geosynthetics Conference (EUROGEO 1) CY - Maastricht, The Netherlands DA - 1996-09-30 PY - 1996 SN - 90-5410-836-3 SP - 153 EP - 157 PB - Balkema CY - Rotterdam AN - OPUS4-7575 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Müller, Werner T1 - Requirements and testing of protective layer systems for geomembranes T2 - Proceedings of the 9th GRI Conference, Geosynthetics in Infrastructure T2 - 9th GRI Conference, Geosynthetics in Infrastructure - Enhancement and Remediation CY - Philadelphia, PA, USA DA - 1995-12-12 PY - 1995 SP - 175 EP - 184 CY - Philadelphia AN - OPUS4-7578 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Ling term tensile testing of polyolefin fibers in geotextiles T2 - Workshop Creep and Durability, Seventh International Conference on Geosynthetic - 7 ICG, International Geosynthetic Society T2 - Workshop Creep and Durability, Seventh International Conference on Geosynthetic - 7 ICG, International Geosynthetic Society CY - Nice, France DA - 2002-09-22 PY - 2002 AN - OPUS4-6004 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Theoretical Approach to Designing Protection: Selecting a Geomembrane Strain Criterion Geosynthetics: Protecting the Environment T2 - 1st IGS UK Chapter National Geosynthetics Symposium T2 - 1st IGS UK Chapter National Geosynthetics Symposium CY - Nottingham, England DA - 2003-06-17 PY - 2003 AN - OPUS4-5409 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Lüders, Günter A1 - Seeger, Stefan ED - Holzlöhner, U. ED - August, H. ED - Meggyes, T. T1 - Geotextile protective layer systems for geomembranes T2 - Advanced landfill liner systems PY - 1997 SN - 0-7277-2590-4 SP - 77 EP - 83 PB - Thomas Telford Publishing CY - London AN - OPUS4-7577 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan A1 - Müller, Werner A1 - Jakob, Ines A1 - Tatzky-Gerth, Renate A1 - August, Hans T1 - Anforderungen an die Schutzschicht für die Dichtungsbahnen in der Kombinationsdichtung - Teil 1: Wirksamkeit (lastverteilende Wirkung und Beständigkeit), Materialien und Prüfverfahren bei Schutzschichten JF - Müll und Abfall PY - 1995 SN - 0027-2957 SN - 1863-9763 VL - 27 IS - 8 SP - 544 EP - 560 PB - Erich Schmidt CY - Berlin AN - OPUS4-7589 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Seeger, Stefan A1 - Langner, Jeanette A1 - Nowak, D. A1 - Jörres, R.A. A1 - Karrasch, S. A1 - Ehret, M. A1 - Herbig, B. A1 - Schierl, R. T1 - Untersuchung möglicher gesundheitlicher Gefährdungen durch Drucker- und Kopierer-Emissionen KW - Bürogeräte KW - Laserdrucker KW - Partikelemission KW - Aerosol KW - Gesundheitliche Gefährdung KW - In-vivo-Studie PY - 2014 UR - http://www.dguv.de/Projektdatenbank/0294A/3228509v1.pdf SP - 1 EP - 238 CY - Berlin ET - Abschlussbericht der Projektpartner zum DGUV-Projekt (Kennziffer FP 294) AN - OPUS4-31335 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Rothhardt, Monika A1 - Barthel, Mathias T1 - Results of interlaboratory tests on the quantification of FP and UFP emissions from laser printing devices (LPD) T2 - Aerosol Technology 2014 T2 - Aerosol Technology 2014 CY - Karlsruhe, Germany DA - 2014-09-16 PY - 2014 AN - OPUS4-31350 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - In-situ-Röntgenfluoreszenzanalytik an Nanopartikeln und Aerosolen T2 - 27. Palas Aerosol Technologie Seminar T2 - 27. Palas Aerosol Technologie Seminar CY - Karlsruhe, Germany DA - 2014-09-16 PY - 2014 AN - OPUS4-31351 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Weiterentwicklung des Umweltzeichens für (Drucker)multifunktionsgeräte - Prüfwert für Partikelemissionen T2 - 22. WaBoLu-Innenraumtage T2 - 22. WaBoLu-Innenraumtage CY - Berlin, Germany DA - 2015-05-12 PY - 2015 AN - OPUS4-33273 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Characterization of Localized NP Emission Sources - Examples T2 - Metrology of Airborne Nanoparticles, Standardisation and Applications (MANSA-Workshop), NPL T2 - Metrology of Airborne Nanoparticles, Standardisation and Applications (MANSA-Workshop), NPL CY - London, England DA - 2010-06-08 PY - 2010 AN - OPUS4-21434 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Gusovius, H.-J. A1 - Wallot, G. T1 - A new measurement method to evaluate length related properties of natural fibres T2 - International Congress on Particle Technology, PARTEC 2007 T2 - International Congress on Particle Technology, PARTEC 2007 CY - Nuremberg, Germany DA - 2007-03-27 PY - 2007 AN - OPUS4-15024 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Vorstellung der Software FiberScanner zur Faserlängenmessung T2 - Workshop Innovative Entwicklung bei Naturfasercharekterisierung und -verarbeitung, Leibnitzinstitut für Agrartechnik T2 - Workshop Innovative Entwicklung bei Naturfasercharekterisierung und -verarbeitung, Leibnitzinstitut für Agrartechnik CY - Potsdam, Germany DA - 2006-09-18 PY - 2006 AN - OPUS4-14252 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan T1 - Anforderungen an die Schutzschicht für die Dichtungsbahnen in der Kombinationsdichtung - Teil 2: Vorläufige Zulassungsrichtlinie für Schutzschichten JF - Müll und Abfall PY - 1996 SN - 0027-2957 SN - 1863-9763 VL - 28 IS - 2 SP - 90 EP - 99 PB - Erich Schmidt CY - Berlin AN - OPUS4-7588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - Zulassung von Schutzlagen T2 - 11. Fachtagung - Die sichere Deponie - Wirksamer Grundwasserschutz mit Kunststoffen T2 - 11. Fachtagung "Die sichere Deponie" CY - Würzburg, Deutschland DA - 1995-02-16 PY - 1995 IS - 11 SP - 1(?) EP - 11(?) CY - Würzburg AN - OPUS4-7587 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Holzlöhner, Ulrich A1 - Meggyes, Tamás A1 - Seeger, Stefan T1 - Landfill Technology in Germany JF - Land Contamination & Reclamation PY - 1999 SN - 0967-0513 VL - 7 IS - 2 SP - 14 pages PB - EPP Publ. CY - Richmond AN - OPUS4-7585 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan T1 - Untersuchung der Wirksamkeit von Filtern zum Schutz vor Partikelemissionen aus Laserdrucksystemen JF - Gefahrstoffe, Reinhaltung der Luft = Air quality control N2 - Laserdrucksysteme (Laserdrucker, -kopierer, Multifunktionsgeräte) emittieren in sehr unterschiedlichen Mengen Partikel im Größenbereich zwischen 5 und 300 nm, die im Druckbetrieb überwiegend durch Kondensation aus der Gasphase entstehen. Eine präventive Minderung dieser Emissionen ist sinnvoll. Die Filtration der in Laserdruckern entstehenden Aerosole bietet eine Option für eine wirksame Emissionsminderung. Die untersuchten Filter mit verschiedenen Filterkonzepten zeigten in ihrer Wirkung deutliche Unterschiede. Die Ergebnisse unterstreichen die Notwendigkeit der gerätespezifischen Optimierung von Filtern für die Anwendung in Laserdrucksystemen.---------------------------------------------------------------------------------------------------------------------------------------------- Laser printing devices are sources of particle emission in different quantities in the size range between 5 and 300 nm. The particles are predominantly generated by re-condensation from the gas phase. Emission mitigation as a precautionary measure should be considered and exhaust air filtration is one technical option. Two particle filters with different filter concepts were compared and revealed different levels of performance. The result underpins the need for individual filter solutions for laser printing devices. PY - 2012 SN - 0949-8036 SN - 0039-0771 SN - 1436-4891 VL - 72 IS - 5 SP - 198 EP - 202 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-27520 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - 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 T2 - Healthy Buildings 2012 - 10th International conference (Proceedings) T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 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 - TY - CONF A1 - Seeger, Stefan A1 - Barthel, Mathias T1 - Particle emission from laser printing devices - Analysis and problem treatment within the German Blue Angel ecolabel for office machines T2 - Healthy Buildings 2012 - 10th International conference (Proceedings) T2 - Healthy Buildings 2012 - 10th International conference CY - Brisbane, Australia DA - 2012-07-08 KW - Ultrafine particle sources KW - Ultrafine particle emission KW - Health effects KW - Product safety KW - Standards PY - 2012 SN - 978-1-921897-40-5 SP - 1 EP - 6 (4F.1) AN - OPUS4-27524 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Krüger, Simone A1 - Raspe, Tina A1 - Piechotta, Christian A1 - Fettig, Ina A1 - Deubel, Jan A1 - Rothhardt, Monika T1 - Partikelanalyse im Brandfall T2 - Workshop Chemische Brandspurenanalytik T2 - Workshop Chemische Brandspurenanalytik CY - Berlin, Germany DA - 2013-04-09 PY - 2013 AN - OPUS4-28535 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Müller, Werner A1 - Jakob, Ines A1 - Seeger, Stefan A1 - Tatzky-Gerth, Renate T1 - Long-term shear strength of geosynthetic clay liners JF - Geotextiles and Geomembranes N2 - Geosynthetic clay liners (GCLs) often have a sandwich-like multilayer structure, e.g. bentonite encased between two geotextile layers connected by fibers or yarns, either by needle-punching or stitch-bonding. Therefore, the internal shear strength of the GCL depends on the strength of reinforcing fiber bundles or yarns and their anchoring strength in the cover and carrier geotextiles. When used on long and steep slopes and covered with thick soil layers, the GCL is permanently exposed to a combined action of compressive and shear stress. Such load conditions are characteristic for landfill covers and the slope stability of the overall cover system in the long run strongly depends on the long-term internal shear strength of the GCL. A new test method was developed to study this long-term shear behavior. The focus was not only on creep, as it is normally done, but on aging effects. The shear test devices allow the measurement of creep curves and times-to-failure at elevated temperatures in different media (tap water and de-ionized water). In this publication, the main findings of the experiments on needle-punched GCLs with and without thermal treatment are summarized. Tap water as a test medium was essential to ensure sodium to calcium ion exchange in the bentonite layer. Under this condition extremely long test durations without failure were achieved. Sliding failure occurred when de-ionized water was used. Two failure modes were observed: brittle failure of the GCLs with thermal treatment and slow disentanglement of fiber bundles for untreated GCLs. Short-term shear strength (e.g. peel strength) is unrelated to the actual long-term shear strength, i.e. to the times-to-failure achieved in long-term shear strength test. Hence, short-term shear strength alone will not provide reliable dimensioning data for product design and choice of resins. Therefore, the often suggested approach, namely, restriction to short-term tests only and application of factors of safety, is challenged by these results. KW - Geosynthetic clay liner KW - Shear strength KW - Oxidative resistance KW - Test methods KW - Long-term testing PY - 2008 DO - https://doi.org/10.1016/j.geotexmem.2007.08.001 SN - 0266-1144 VL - 26 IS - 2 SP - 130 EP - 144 PB - Elsevier CY - Amsterdam AN - OPUS4-16710 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Österle, Werner A1 - Bresch, Harald A1 - Dörfel, Ilona A1 - Prietzel, Claudia A1 - Seeger, Stefan A1 - Fink, C. A1 - Giese, A. A1 - Walter, J. T1 - Surface film formation and dust generation during brake performance tests T2 - Braking 2009 T2 - Braking 2009 CY - York, UK DA - 2009-06-09 KW - Bremse KW - Dritter Körper KW - Verschleiß KW - Reibung KW - Nanocharakterisierung KW - Aerosol PY - 2009 SN - 978-1-84334-559-6 IS - C672/028/09 SP - 29 EP - 38 PB - Woodhead Publishing Ltd AN - OPUS4-19574 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Wilke, Olaf T1 - Prüfkammermessungen zur Erfassung von VOC- und Partikelemissionen aus Laserdruckern T2 - 15. WaBoLu-Innenraumtage des Vereins für Wasser-, Boden- und Lufthygiene e. V., Gelsenkrichen, Umweltbundesamt T2 - 15. WaBoLu-Innenraumtage des Vereins für Wasser-, Boden- und Lufthygiene e. V., Gelsenkrichen, Umweltbundesamt CY - Berlin, Germany DA - 2008-04-28 PY - 2008 AN - OPUS4-18549 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wilke, Olaf A1 - Seeger, Stefan T1 - New VOC compounds in the indoor environment from thermoplastic filaments for 3D printing T2 - HB 2015 - 1st North American regional conference Healthy Buildings 2015 America (Proceedings) N2 - A screening test for potential emissions of volatile organic compounds (VOC) was run on different thermoplastic filaments used for 3D printing. The method of direct thermal desorption was used to simulate the high temperatures during the 3D printing process and to identify the main compounds emitted from the filaments. A )arge number of unexpected compounds were detected that might affect the user's health and have an impact on indoor air chemistry. T2 - HB 2015 - 1st North American regional conference Healthy Buildings 2015 America CY - Boulder, Colorado, USA DA - 17.09.2015 KW - VOC KW - Emission KW - 3D printer PY - 2015 SP - 281 EP - 282 AN - OPUS4-34941 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mohr, Gunther A1 - Seeger, Stefan A1 - Hilgenberg, Kai T1 - Measurement of particle emissions in Laser Powder Bed Fusion (L-PBF) processes and its potential for in-situ process monitoring T2 - Euro PM 2019 Proceedings N2 - Laser Powder Bed Fusion (L-PBF) is a promising additive manufacturing (AM) technology for metal part production especially for complex and lightweight structures or functional designs. In L PBF processes several by-products including welding plume and its condensates, spatter and ejected powder are generated during laser exposure. Investigations of micro- and nano-sized by-products have received little attention in literature. This study focuses on the analysis of particle emissions in L PBF of 316L stainless steel using a scattered light aerosol spectrometer and a fast mobility particle sizer spectrometer during the process which allows for in-situ analysis of particle sizes in the range of 6 nm to 100 µm. A distinct correlation of emission signals to part position can be revealed. In addition, a significant influence of laser scanning vector directions on emission signals is presented. Furthermore, differing powder layer thicknesses can be recognised by deviations in emission signals. T2 - Euro PM 2019 CY - Maastricht, The Netherlands DA - 13.10.2019 KW - Plume KW - Laser Powder Bed Fusion (L-PBF) KW - Additive Manufacturing (AM) KW - Spatter KW - Fume KW - Particle gas emission KW - Aerosol measurements PY - 2019 SP - 1 EP - 7 AN - OPUS4-49388 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Osan, J. A1 - Gross, A. A1 - Stabile, L. T1 - AEROMET - Observation of quickly changing element mass concentrations in an ambient aerosol using portable TXRF N2 - Measurements of aerosol particles are vital for enforcing EU air quality regulations to protect human health, and for research on climate change effects. Although metrics such as PM10 and PM2.5 are currently in use, the level of uncertainty of aerosol metrics is too high and the traceability is insufficient. The project AEROMET, which has been started in June 2017 aims at implementing improvements in a) the uncertainty of particle mass, size and number concentration measurements and b) in the characterization of regulated components in airborne particles. Both are demanded by existing networks within the EU as well as by global atmospheric research. On-site measurement campaigns One of the objects is the application of mobile x-ray spectroscopy techniques combined with aerosol sampling techniques for quantifying particle compositions in the field for real time analysis. During two in-field measurement campaigns in Budapest, Hungary in May 2018 and Cassino, Italy in September 2018 the size dependent mass concentrations of specific elements in ambient aerosols were monitored under dynamic conditions. Typically, airborne particles are sampled on filter substrates. During this project new sampling methods with specially designed substrate holders for an in-situ TXRF analysis were developed and applied for the first time. This approach allows a direct time and size resolved analysis without laborious digestion steps and a reduced risk of contamination. Aerosol particles were sampled in a 13-stage DLPI impactor - size range from 0,03 µm to 10 µm - which was equipped with special adapters for acrylic discs of 30 mm diameter, serving as substrates. TXRF analysis was performed on site with the transportable spectrometer S2 PICOFOX (Bruker Nano GmbH) equipped with a Mo X-ray tube and a 30 mm² Silicon Drift Detector (SDD). Excitation conditions were 50 kV, 600 µA, measurement time 1000 s. Quantification was based on internal standardization using 50 ng of Y in solution, which was pipetted into the centre of the discs prior to sampling. At moderate air pollution levels, i.e. PM10 ~ 20 µg/m³, sampling times of less than 2 hours were enough for the detection of elements in different particle size bins. The in-situ approach and the high sensitivity of TXRF enables the observation of rather quick changes in the quantity and distribution of elements in an ambient aerosol on the day of sampling, as the below example from the Cassino field campaign on 11 Sept. 2018 shows: The analysis of the morning and afternoon sampling shifts reveals the occurrence of the elements Fe, Ca and Si in different size bins as well as their significant temporal change in respective mass concentrations over the day while the distributions of several other elements in the aerosol remain unchanged. The validation of these results by backup measurements is planned. T2 - European Aerosol Conference EAC 2019 CY - Gothenburg, Sweden DA - 25.08.2019 KW - TXRF KW - Ambient air KW - Aerosol KW - Cascade impactor KW - Element analysis PY - 2019 AN - OPUS4-49582 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan A1 - Pollakowski-Herrmann, Beatrix A1 - Osan, J. A1 - Gross, A. A1 - Stosnach, H. A1 - Kayser, Y. A1 - Beckhoff, B. T1 - Quantification of element mass concentrations in aerosols by combination of cascade impactor sampling and in-situ TXRF Spectroscopy N2 - A mobile Bruker S2 Picofox TXRF spectrometer has been used in two field campaigns within the EMPIR env07 AEROMET project for the on-site analysis of cascade impactor aerosol samples.The results show that even at moderate air pollution levels – i.e.PM10 fairly below 20 μg/m³ - element mass concentrations in air in the range of 100 pg/m³could be measured in up to 13 size bins after sampling times of less than only 0.5 days. T2 - UFP 2019 Ultrafeinstaub in der Atmosphäre und in Innenräumen, 3. Symposium CY - Technische Universität Berlin, Germany DA - 19.09.2019 KW - TXRF ambient air aerosol chemical analysis aerosol element composition KW - Aerosol KW - TXRF KW - Cascade impactor KW - Aerosol element alanysis KW - Aerosol element mass concentration PY - 2019 AN - OPUS4-49580 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kayser, Y. A1 - Gross, A. A1 - Hönicke, P. A1 - Osan, J. A1 - Pollakowski-Herrmann, B. A1 - Seeger, Stefan A1 - Beckhoff, B. T1 - Reliable chemical analysis of aerosols by reference-free X-ray spectrometry for monitoring airborne particulate matter JF - Spectroscopy N2 - The physical and chemical analysis of aerosols using reliable and physically traceable methods is important for the thorough investigation of airborne particles to support a better understanding of their origin as well as their health and climate impacts. Within the European Metrology Research AeroMet project,the aim of hysikalisch–Technische Bundesanstalt’s (PTB) X-ray spectrometry group is to develop and establish traceable and reliable X-ray methods to measure the elemental mass deposition per unit area, the elemental composition,and the chemical binding state of particulate matter supported by a flat substrate. This approach can substantially contribute to support quantitative analytical methods during on-site measurement campaigns where portable Instrumentation is employed by qualifying suitable calibration samples for commercial analytical X-ray instruments and by investigating samples collected during the field campaign. KW - AEROMET project KW - X-Ray analysis KW - TXRF KW - Aerosols KW - Particles KW - Air pollution KW - Elemental composition PY - 2020 UR - https://www.spectroscopyonline.com/view/reliable-chemical-analysis-of-aerosols-by-reference-free-x-ray-spectrometry-for-monitoring-airborne-particulate-matter SN - 0887-6703 VL - 35 IS - 10 SP - 42 EP - 46 PB - MJH Life Sciences CY - Cranbury, NJ AN - OPUS4-53357 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Seeger, Stefan A1 - Brödner, Doris A1 - Jacobi, T. A1 - Rasch, Fabian A1 - Rothhardt, Monika A1 - Wilke, Olaf T1 - Emissions of fine and ultrafine particles and volatile organic compounds from different filament materials operated on a low-cost 3D printer T1 - Emissionen feiner und ultrafeiner Partikel sowie flüchtiger organischer Verbindungen beim Einsatz verschiedener Filamentmaterialien in einem „low-cost“-3D-Drucker JF - Gefahrstoffe - Reinhaltung der Luft N2 - 3D-printing or additive manufacturing has many promising and unique advantages. Especially low cost molten polymer Deposition Printers are increasingly populär in the private and educational sector. Their environmental friendliness can be questioned due to recently reported ultrafine particle and suspected VOC emissions, To further investigate 3D-printing as a potential indoor air pollution source we characterized fine and ultrafine particle emissions from a molten polymer deposition printer producing a 3D object with ten marketable polymer filament materials under controlled conditions in a test chamber. VOC emissions from the filaments have also been compared. Using a straightforward emission model time dependent and averaged particle emission rates were determined. The results indicate that under comparable conditions some filament materials produce mainly ultrafine particles up to an average rate of 1013 per minute. This value is in the upper ränge of typical indoor ultrafine particle sources (e.g. Smoking, frying, candle light, laser printer). The observed material-specific rates differ by five Orders of magnitude. Filament-specific gaseous emissions of organic compounds such as bisphenol A, styrene and others were also detected. Our results suggest a detailed evaluation of related risks and considering protective measures such as housing and filtering. N2 - 3D-Druck oder additive Herstellungsverfahren haben eine Menge vielversprechender und einzigartiger Vorteile. Insbesondere günstige 3D-Drucker für Polymere werden im privaten und ausbildenden Bereich zunehmend beliebter. Ihre Umweltfreundlichkeit kann aufgrund jüngst berichteter Emissionen ultrafeiner Partikel und vermuteter VOC-Emissionen infrage gestellt werden. Um 3D-Drucker für Polymere als mögliche Quelle von Innenraumluftverunreinigungen weiter zu untersuchen, charakterisierten wir die Emissionen feiner und ultrafeiner Partikel bei der Herstellung eines 3D-Objekts unter Verwendung zehn marktgängiger Polymerfilamente unter kontrollierten Bedingungen in einer Emissionsprüfkammer. Die VOC-Emissionen der verschiedenen Filamente wurden ebenfalls verglichen. Die zeitabhängigen und gemittelten Partikelemissionsraten wurden durch Anwendung eines einfachen Emissionsmodells bestimmt. Die Ergebnisse zeigen, dass unter vergleichbaren Bedingungen einige Filamente mit einer mittleren Rate von 10 KW - Emission KW - Ultrafine particles KW - VOC KW - 3D printer PY - 2018 SN - 0949-8036 SN - 0039-0771 VL - 78 IS - 3 SP - 79 EP - 87 PB - Springer-VDI-Verl. CY - Düsseldorf AN - OPUS4-44954 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - VOC, Fine and Ultrafine Particles Emissions from Additive Manufacturing and 3D-Printers N2 - The presentation gives an overview on Additive Manufacturing techniques and related potential risks from emission of hazardous gases and aerosols, based on emission characterizations in BAM. Voluntary mitigation strategies are presented T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - 3D Printing KW - Additive Manufacturing KW - Particulate emissions KW - Emissions of hazardous gases KW - Filament comparison PY - 2019 AN - OPUS4-47812 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Seeger, Stefan T1 - UBA Projects on Particulate Emissions from Laser Printers N2 - The presentation gives an overview on past and ongoing projects in BAM on laser printer particulate emissions, funded by the German Environment Agency (UBA) in order to further develop award criteria for the Blue Angel ecolabel for office machines T2 - BAM - JBMIA (Japan Business Machine and Information System Industries Association) Meeting, JBMIA Emissions Working Group Meeting CY - Tokyo, Japan DA - 04.05.2019 KW - Laser Printer KW - Particulate emission KW - Blue Angel ecolabel KW - Office machines PY - 2019 AN - OPUS4-47811 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Jörres, R. A1 - Ehret, M. A1 - Karrasch, S. A1 - Herbig, B A1 - Schierl, R. A1 - Seeger, Stefan A1 - Langner, J. A1 - Nowak, D. T1 - Respiratorische Effekte von Drucker- und Kopierer-Emissionen – eine kontrollierte Expositionsstudie T2 - Pneumologie N2 - Die möglichen gesundheitlichen Auswirkungen von Laserdruckeremissionen sind immer wieder Gegenstand von Aufmerksamkeit. Wir untersuchten die Effekte 75-minütigerExpositionen gegenüber Low-Emittern (LE, Untergrund 2000 – 4000 UFP/cm3) und High-Emittern (HE, 100.000 UFP/cm3). T2 - 56. Kongress der Deutschen Gesellschaft für Pneumologie und Beatmungsmedizin e.V. CY - Berlin, Germany DA - 18.03.2015 KW - Expositionsstudie in-vivo KW - Bürogeräte KW - Emissionen KW - Partikel PY - 2015 DO - https://doi.org/10.1055/s-0035-1544873 VL - 69-V516 SP - V516 PB - Thieme CY - Stuttgart AN - OPUS4-38752 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Dutschke, Andreas A1 - Lohrer, Christian A1 - Kurth, Lutz A1 - Seeger, Stefan A1 - Barthel, Mathias A1 - Panne, Ulrich T1 - Aerosol emissions from outdoor firework displays JF - Chemical engineering & technology N2 - The results of investigations on the emission of particulate matter from three outdoor firework displays are presented. During these events, possibly harmful and toxic aerosol emissions were measured. Aerosols in the size range from 30 to 450 nm were detected. The maxima in the observed particle size distribution were between 80 and 175 nm, and the highest value determined was ~1.3 · 106 particles per cm³, while the highest mass concentration was approximately 1.8 mg m–3. The time-averaged particle mass concentration did, however, not exceed 0.7 mg m–3 (over 15 min). KW - Firework display KW - Particle size range KW - Particulate matter KW - Threshold values PY - 2011 DO - https://doi.org/10.1002/ceat.201100080 SN - 0930-7516 SN - 1521-4125 VL - 34 IS - 12 SP - 2044 EP - 2050 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-24929 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -