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Frank G.,TUV Rheinland LGA Products GmbH TRLP | Galinkina J.,TUV Rheinland LGA Products GmbH TRLP | Mendrok V.,TUV Rheinland LGA Products GmbH TRLP | Schelte C.,TUV Rheinland LGA Products GmbH TRLP
Deutsche Lebensmittel-Rundschau | Year: 2014

Synthetic leather (also known as leather imitation) is confected of different polyester based plastics or cotton backing fabrics applying a cover layer of polyvinyl chloride (PVC) or polyurethane polymers (PUR). Due to its durability synthetic leather as cover material is a cost-effective option to tanned leather often contaminated with residue concentrations of biocides and volatile and semi-volatile organic compounds released from surface finishing. In the scope of leather quality assessment various testing and evaluation schemes are available whereby the common feature is a test chamber examination for release of volatile compounds. Within the rating and test requirements of the German Quality Association for Furniture (DGM) the first move was launched to implement quality issues for artificial leather items used in furniture. Initial TRLP testing results indicated that synthetic leather samples may reveal distinct concentrations of the reprotoxic classified substance N,N-dimethylformamide which indicate further examination activities regarding indoor air hygienic issues. Marketed synthetic leather types were subject to test chamber emission tests with multiple sampling points to characterize their typical time dependent emission profile. Moreover, operating thermo-extraction method quantifications of N,N-dimethylformamide contents within selected polymer matrices followed to match material findings and quantifiable test chamber concentrations in the scope of a correlation reflection.


Kuhn C.,TUV Rheinland LGA Products GmbH TRLP | Mendrok V.,TUV Rheinland LGA Products GmbH TRLP | Bauer A.,TUV Rheinland LGA Products GmbH TRLP | Frank G.,TUV Rheinland LGA Products GmbH TRLP | Schelle C.,TUV Rheinland LGA Products GmbH TRLP
Gefahrstoffe Reinhaltung der Luft | Year: 2015

Commercially obtainable electric kitchen stoves with integrated baking oven function produced by different manufacturers were tested under practical condition of baking oven usage in a large test chamber. The selected climatic terms of the emission examinations were adapted to real kitchen indoor air and dimensional characteristics. The quantified test chamber concentrations of released volatile organic compounds (VOC) reflect the additionally resulting VOC indoor air concentrations in a kitchen room under electrical baking oven device usage. The assessment of the emitted compound concentrations was focused both on a single substance evaluation and the total volatile organic compounds (TVOC) with regard to indoor air hygienic issues. The baking ovens of the test collective differ distinctly in their emission profiles and can be allocated to staggered indoor air quality levels due to inherent VOC features. Following the initial electrical device operation a consecutive measuring cycle was launched with single test objects to quantify the VOC declining characteristics. The VOC release in the scope of pyrolysis function was studied exemplarily with one baking oven module.


Frank G.,TUV Rheinland LGA Products GmbH TRLP | Mendrok V.,TUV Rheinland LGA Products GmbH TRLP | Bauer A.,TUV Rheinland LGA Products GmbH TRLP | Schelle C.,TUV Rheinland LGA Products GmbH TRLP
Deutsche Lebensmittel-Rundschau | Year: 2015

Commonly available and marketed frying pans can be equipped with different non-stick coatings. Beside skillets coated with polytetrafluoroethylene polymer (PTFE) based plastics a rising number of articles with ceramic apparels are offered. From material technical point of view the predominant advertising feature for ceramic coated pans is the higher temperature resistance compared to PTFE provided ones. Whereas PTFE polymer is characterized by a decomposition temperature of TpPTFE ˜ 260 °C ceramic materials may stand temperature imposition up to TCenmte ˜ 400 °C. Exceeding material specific usage temperatures the coatings will undergo decomposition reactions with release of toxicological relevant compounds. In previous articles the emission of benzene from PTFE-coated frying pans has been focused on. In the scope of actually run test chamber examinations the thermal resistance of both PTFE- and ceramic non-stick coated pans has been evaluated by exposing the articles to stressing calefaction temperatures under standardized conditioning parameters and quantifying the concentrations of released volatile organic compounds. Gained measuring results of PTFE-coated pans were compared to data of ceramic-coated representatives. Both PTFE- and ceramic appareled skillets show distinct emission profiles under extreme temperature impact. Detected test chamber concentrations were modelled into fictive, additionally resulting indoor air concentrations and evaluated with regard to indoor air hygiene issues.


Galinkina J.,TUV Rheinland LGA Products GmbH TRLP | Mendrok V.,TUV Rheinland LGA Products GmbH TRLP | Schelle C.,TUV Rheinland LGA Products GmbH TRLP
Gefahrstoffe Reinhaltung der Luft | Year: 2013

Contrary to construction products, the evaluation of test results due to furniture items and furnishing generated from test chamber examinations is based upon test chamber concentrations instead of model room indoor air concentrations respecting established test programs. Conditioning parameters regarding test chamber examinations in accordance with AgBB concept for construction products can be adapted to testing of three-dimensional furniture provided that the requirement for a consistently defined loading factor is neglected. This article describes measurement findings which have been gained on the basis of test chamber examinations in dependence on the AgBB test and evaluation scheme with commercially available wood based shelf system samples. Emission data are presented as model room concentrations and were compared with findings resulting from an area specific test approach.


Puzzle mats manufactured from EVA expanded plastics are subject to frequent activities launched by national surveillance authorities with respect to consumer protection. Within previous years European inspection bodies detected in puzzle mats partially distinct concentrations of the substance formamide, a chemical classified with reprotoxic toxicological profile. Consequently, even the intended usage of such articles can be associated with a potential health risk for consumers. A formamide exposition can both be given by dermal contact and respiratory inhalation of this volatile compound. The article specifies test findings with regard to contamination with formamide and further toxicological relevant pollutants due to commercially available and randomly selected sports mats generated in the scope of material quantifications and test chamber emission examinations.


Wildermann R.,TUV Rheinland LGA Products GmbH TRLP | Kubina A.,TUV Rheinland LGA Products GmbH TRLP | Protz S.,TUV Rheinland LGA Products GmbH TRLP | Schelle C.,TUV Rheinland LGA Products GmbH TRLP
Umweltmedizin in Forschung und Praxis | Year: 2012

The emissions of volatile organic compounds (VOC), ozone and ultrafine particles released from printing and copy devices are discussed scientifically with regard to user-related adverse health impacts. Optionally, various certification programs for assessment of low-emitting printing and copy systems are publicly available. The approach of determining admissible emission rates resulting from test chamber evaluations is a shared feature. Moreover, in the scope of certification criteria specified for the ecological label "LGA - tested for contaminants" material examinations on toner powders are required amongst others with respect to mass concentration quantification of volatile organic compounds. A series of toner charges has been material tested in the past. The current article reveals a data survey of test results generated from VOC thermo-extraction material analyses of toner samples and test chamber emission examinations on printing modules evaluated within the last four years. Toner powders with reduced VOC material contents show an increased probability for adherence to the required emission test chamber threshold values. © ecomed Medizin, Verlagsgruppe Hüthig Jehle Rehm GmbH, Landsberg.


Generally, due to a different test methodology and deviating strategies regarding analytical evaluation product related emission results arising from test chamber examinations can often hardly be compared to each other directly. While ecological quality labels focussing on emission characteristics of furniture items established within the national market reveal nearly analogue test methods and evaluation principles, test approaches like "GREENGUARD" - originated in and predominantly covering the U.S. region - follow a differential testing and evaluation procedure. This article describes the comparability of test chamber emission results generated from examinations of type identical furniture samples with respect to test requirements in accordance with the certification criteria of "LGA tested for contaminants" (SG) and "GREENGUARD" (GG), respectively. The evaluation results presented as emission rates and modelled indoor air concentrations reveal finding equivalence for both test approaches in the scope of authoritative measurement precision.

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