Formerly: Beiträge zur Tabakforschung International

Contributions to Tobacco & Nicotine Research

Contributions to Tob. Res.

<abstract><title style='display:none'>Abstract</title> Nineteen companies and institutes participated in the second collaborative study, using the measuring methods VA, PA and C in 3 series of filter-rods of 50 pieces each; 4 participants received 3 series and 3 CFO respectively. The differences of the mean values were much smaller than in the first collaborative study and did not exceed 28 mm water. Also the standard deviation of the single values and the standard deviation of reproducibility have decreased to less than half in comparison to the first collaborative study. There was no difference in the method-mean value over all participants and series. Significant differences arose however between the participant-mean values and the mean values as well of the standard deviations of the participants as also of their standard deviations of reproducibility. A regression between the standard deviation of the single values and the standard deviations of reproducibility could however not be shown. Comparing the values of the standard deviation between the samples of the same participants to the values of the residual variance of the single analysis of variance of the series over all participants, it shows that the latter is mostly based on the systematic participant influence. Also a regression between the standard deviation of the single values and the mean values of the pressure drop could not be noticed. An influence of temperature, relative humidity and atmospheric pressure on the value of the pressure drop could only be stated in series III of measuring method C corr. But it was so small that it could practically be neglected. By means of a rank correlation a connection between the mean values of the first and the second collaborative study could be shown for different parameters with most participants. This fact is another proof that the stated differences in pressure drop are mostly based on factors being characteristic for the individual participants. It is to be aimed at the fact that all these factors are checked more thoroughly in order to improve the agreement of the mean values of the pressure drop between the participants</abstract>

Abstract

Forschung und Entwicklung der Martin Brinkmann AG, Bremen, Germany

<article-title>2nd Collaborative Study of the CORESTA on the Comparability of Three Selected Methods Measuring the Pressure Drop of Filter Rods/Auswertung der 2. CORESTA-Ringuntersuchung über die Vergleichbarkeit von drei ausgewählten Messmethoden für den Zugwiderstand von Filterstäben</article-title>

2nd Collaborative Study of the CORESTA on the Comparability of Three Selected Methods Measuring the Pressure Drop of Filter Rods/Auswertung der 2. CORESTA-Ringuntersuchung über die Vergleichbarkeit von drei ausgewählten Messmethoden für den Zugwiderstand von Filterstäben

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Contributions to Tobacco and Nicotine Research ist in den folgenden Services indiziert: <UL> <LI>Baidu Scholar </LI> <LI>CABI (over 50 subsections) </LI> <LI>Chemical Abstracts Service (CAS) - CAplus </LI> <LI>Chemical Abstracts Service (CAS) - SciFinder </LI> <LI>CNKI Scholar (China National Knowledge Infrastructure) </LI> <LI>CNPIEC - cnpLINKer </LI> <LI>Dimensions </LI> <LI>DOAJ (Directory of Open Access Journals) </LI> <LI>EBSCO </LI> <LI>Elsevier - Reaxys </LI> <LI>ExLibris </LI> <LI>Google Scholar </LI> <LI>Japan Science and Technology Agency (JST) </LI> <LI>J-Gate </LI> <LI>JournalGuide </LI> <LI>KESLI-NDSL (Korean National Discovery for Science Leaders) </LI> <LI>MyScienceWork </LI> <LI>Naver Academic </LI> <LI>Naviga (Softweco) </LI> <LI>QOAM (Quality Open Access Market) </LI> <LI>ReadCube </LI> <LI>SCILIT </LI> <LI>SCImago (SJR) </LI> <LI>SCOPUS </LI> <LI>Semantic Scholar </LI> <LI>TDNet </LI> <LI>Ulrich's Periodicals Directory/ulrichsweb </LI> <LI>WanFang Data </LI> <LI>Web of Science - Biological Abstracts </LI> <LI>Web of Science - BIOSIS Previews </LI> <LI>WorldCat (OCLC) </LI> <LI>X-MOL </LI></UL>

Advisory Board　　　 Bernhard Eitzinger, delfortgroup AG, Traun, Austria Ernest Groman, University of Vienna, Vienna, Austria Daniel Heck, HeckTox LLC, Greensboro, NC, USA Anne Fisher, University of Kentucky, Lexington, KY, USA Xie Jianping, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China Hubert Klus, St. Pölten, Austria John H. Lauterbach, Lauterbach &amp; Associates LLC, Macon, GA, USA Ramsey Lewis, North Carolina State University, Raleigh, NC, USA Chuan Liu, Southampton, UK Tryggve Ljung, Swedish Match, Stockholm, Sweden Michael W. Ogden, Ogden Ology, LLC, Lewisville, NC, USA Thilo Paschke, Geneva, Switzerland Stephen W. Purkis, Bristol, UK Elmar Richter †, Ludwig-Maximilians-University, Munich, Germany Wolfram Roeper, Hamburg, Germany Wolfgang Trinkies, Bayreuth, Germany Andreas Zemann, Leopold-Franzens-University of Innsbruck, Innsbruck, Austria Editors Wolf-Dieter Heller Gerhard Scherer Editorial Office Barbara Boenke Brigitte Müller Anja Thielen Contact <A href="mailto:editors@beitraege-bti.de">editors@beitraege-bti.de</A> Publisher De Gruyter Poland Bogumiła Zuga 32A Str. 01-811 Warsaw, Poland T: +48 22 701 50 15

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Contributions to Tobacco and Nicotine Research (formerly: Beiträge zur Tabakforschung International / Contribution to Tobacco Research International) publishes articles with a focus on tobacco, nicotine, and related consumer products. In addition, all aspects of research on the tobacco plant as well as on product technology and manufacturing are relevant for the Journal. Products of interest comprise (i) combustible tobacco products (cigarettes, cigars, pipes, etc.), (ii) smokeless tobacco (SLT) products (snuff, snus, chewing tobacco, etc.), (iii) tobacco heating products (THP), (iv) electronic cigarettes (e-cigs, w/o nicotine), (v) oral nicotine delivery (OND) products. All scientific investigations on product-related properties (including physical, chemical, biological, and toxicological properties) as well as on the influence on consumers’ behavior and response (including acute and long-term product use patterns and biomarker profiles) are considered for publication. Submissions can be of the following types: original investigations, reviews, short reports commentaries, letters to the editor. Fields covered by the Journal <UL> <LI>Research into the tobacco plant </LI> <UL> <LI>Tobacco plant </LI> <LI>Metabolism </LI> <LI>Cultivation </LI> <LI>Pesticides Biotechnology (Plant pathology, Mycology, Microbiology) </LI> </UL></UL> <UL> <LI>Manufacture of tobacco products </LI> <UL> <LI>Processing of tobacco </LI> <LI>Flavor </LI> <LI>Manufacture of cigarettes and other products </LI> <LI>Tobacco and environment </LI> <LI>Chemical engineering including physical chemistry </LI> </UL></UL> <UL> <LI>Analysis and properties of tobacco smoke </LI> <UL> <LI>Physical properties </LI> <LI>Chemical properties </LI> <LI>Combustion studies </LI> <LI>Mainstream/sidestream smoke </LI> <LI>Filter studies </LI> <LI>Special substances </LI> <LI>Analytical methods </LI> <LI>Machine smoking </LI> </UL></UL> <UL> <LI>Tobacco products other than cigarettes </LI> <UL> <LI>Cigars / cigarillos </LI> <LI>Pipe tobacco </LI> <LI>Smokeless tobacco (SLT) products (snuff, snus, chewing tobacco) </LI></UL> <LI>New products </LI> <UL> <LI>Tobacco heating products (THP) </LI> <LI>Electronic cigarettes (e-cigs, w/o nicotine) </LI> <LI>Oral nicotine devices (OND, e.g., nicotine pouches) </LI> </UL></UL> <UL> <LI>Human smoking behavior </LI> <UL> <LI>Biomonitoring </LI> <LI>Consumer behavior </LI></UL></UL> Open Access Statement The journal is an Open Access journal that allows a free unlimited access to all its contents without any restrictions upon publication to all users. Archiving Sciendo archives the contents of this journal in <A href="https://www.portico.org/">Portico</A> - digital long-term preservation service of scholarly books, journals and collections. Plagiarism Policy The editorial board is participating in a growing community of <A href="https://www.crossref.org/services/similarity-check/">Similarity Check System's</A> users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process.

Contributions to Tobacco & Nicotine Research

2nd Collaborative Study of the CORESTA on the Comparability of Three Selected Methods Measuring the Pressure Drop of Filter Rods/Auswertung der 2. CORESTA-Ringuntersuchung über die Vergleichbarkeit von drei ausgewählten Messmethoden für den Zugwiderstand von Filterstäben

M. Bethmann and
M. Bethmann and
H. Böttcher
H. Böttcher

Published Online: 12 Jul 2014

Volume & Issue: Volume 5 (1970) - Issue 5 (November 1970)

Page range: 239 - 252

Received: 11 Jun 1970

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Contributions to Tobacco & Nicotine Research

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Contributions to Tobacco & Nicotine Research

2nd Collaborative Study of the CORESTA on the Comparability of Three Selected Methods Measuring the Pressure Drop of Filter Rods/Auswertung der 2. CORESTA-Ringuntersuchung über die Vergleichbarkeit von drei ausgewählten Messmethoden für den Zugwiderstand von Filterstäben

M. Bethmann andM. Bethmann andH. BöttcherH. Böttcher

Published Online: 12 Jul 2014

Volume & Issue: Volume 5 (1970) - Issue 5 (November 1970)

Page range: 239 - 252

Received: 11 Jun 1970

Journal & Issue Details

Contributions to Tobacco & Nicotine Research

PDF Preview

References

Recent Articles

M. Bethmann and
M. Bethmann and
H. Böttcher
H. Böttcher