TY - JOUR A1 - Wilke, Olaf A1 - Jann, Oliver A1 - Plehn, W. A1 - Brozowski, F. T1 - Untersuchungen zur Etablierung der DIN EN 16516 als neuer Referenznorm für die Prüfung von Formaldehydemissionen aus Holzwerkstoffen gemäß Chemikalien-Verbotsverordnung T1 - Investigations to establish DIN EN 16516 as new reference standard for testing of formaldehyde emissions from wood-based panels under the Chemikalien-Verbotsverordnung N2 - Im Januar 2018 wurde die DIN EN 16516 „Bauprodukte: Bewertung der Freisetzung gefährlicher Stoffe – Bestimmung von Emissionen in die Innenraumluft“ als harmonisierte europäische Prüfnorm veröffentlicht. Für die Etablierung der DIN EN 16516 als neue Referenznorm wurden verschiedene Emissionsprüfungen mit dem Ziel durchgeführt, ein neues Prüfverfahren für Formaldehydemissionen aus Holzwerkstoffen zu erarbeiten. Das übergeordnete Ziel ist die Minimierung des Risikos von Überschreitungen des Innenraumrichtwertes für Formaldehyd. Die Untersuchungen ergaben teilweise hohe Formaldehydemissionen, insbesondere bei höheren Beladungsfaktoren und Temperaturen, sowie bei niedrigen Luftwechselraten. Eine getestete Spanplatte hätte aufgrund ihrer hohen Formaldehydemission nicht auf den deutschen Markt gebracht werden dürfen. Durch vergleichende Untersuchungen konnte ein Umrechnungsfaktor in Höhe von 2,0 für die Umrechnung von Prüfwerten nach DIN EN 717-1 zu DIN EN 16516 abgeleitet werden. N2 - DIN EN 16516 "Construction products: Assessment of release of dangerous substances - Determination of emissions into indoor air" was published as a harmonized European standard in January 2018. For the establishment of DIN EN 16516 as the new reference standard various emission tests were carried out with the aim to develop a new test procedure for the measurement of formaldehyde emissions from wood-based panels. The superior aim is to minimize the risk of exceeding the indoor air reference value for formaldehyde. The investigations showed some particularly high formaldehyde emissions, especially at higher loading and temperature and at low air change rates. One of the tested particle boards exceeded the formaldehyde limit value and should not have been sold in Germany. For the conversion of test values from DIN EN 717-1 to DIN EN 16516 a conversion factor of 2.0 was derived from the comparative investigations. KW - Formaldehyd KW - DIN EN 16516 KW - Innenraumluft KW - Emissionsprüfung PY - 2019 SN - 0949-8036 VL - 79 IS - 3 SP - 79 EP - 85 PB - VDI Fachmedien CY - Düsseldorf AN - OPUS4-47666 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 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-526139 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 - JOUR A1 - Richter, Matthias A1 - Juritsch, Elevtheria A1 - Jann, Oliver T1 - Determination of recovery rates of adsorbents for sampling very volatile organic compounds (C1-C6) in dry and humid air in the sub-ppb range by use of thermal desorption gas chromatography-mass spectrometry N2 - The reliable measurement of very volatile organic compounds (VVOC) in indoor air by use of thermal desorption gas chromatography (TD-GC) in order to include them into evaluation schemes for building products even nowadays is a great challenge. For capturing these small molecules with carbon numbers ranging from C 1 –C 6 , strong adsorbents are needed. In the present study, recovery rates of nine suitable adsorbents of the groups of porous polymers, graphitised carbon blacks (GCB) and carbon molecular sieves (CMS) are tested against a complex test gas standard containing 29 VVOC. By consideration of the recovery and the relative humidity (50% RH), combinations of the GCB Carbograph 5TD, the two CMS Carboxen 1003 and Carbosieve SII as well as the porous polymer Tenax® GR were identified to be potentially suitable for sampling the majority of the VVOC out of the gas mix. The results reveal a better performance of the adsorbents in combination than being used alone, particularly under humid sampling conditions. The recovery rates of the chosen compounds on each adsorbent should be in the range of 80–120%. KW - VVOC KW - Indoor Air: Adsorbent performance KW - Recovery rate KW - Thermal desorption KW - Gas chromatography PY - 2020 U6 - https://doi.org/10.1016/j.chroma.2020.461389 VL - 1626 SP - 1 EP - 9 PB - Elsevier AN - OPUS4-51106 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 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:b43-519634 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 - Hofmann, Michael A1 - Richter, Matthias A1 - Jann, Oliver T1 - Robustness validation of a test procedure for the determination of the radon-222 exhalation rate from construction products in VOC emission test chambers N2 - This study investigated the adaptation of the state-of-the-art test procedure for the determination of emissions of volatile organic compounds (VOC) from materials into indoor air to test for the radon exhalation from stony construction products. A complete robustness validation including all relevant parameters showed that the procedure can be well applied by testing institutes already holding available the required VOC testing infrastructure that solely needs to be complemented by calibrated commercial radon measurement instrumentation. When measurements of the radon exhalation from construction materials become mandatory by law, test capacity can easily be applied. This work can serve as a recommendation for the European standardisation that still is on hold in this point. KW - Radon exhalation KW - Construction products KW - Emission test chamber KW - Robustness validation KW - Standardisation PY - 2020 U6 - https://doi.org/10.1016/j.apradiso.2020.109372 SN - 0969-8043 VL - 166 IS - 109372 SP - 1 EP - 8 PB - Elsevier CY - Amsterdam AN - OPUS4-51145 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -