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78 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2011, Santiago, IG 01 ; CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, IG 01

    Producer compliance costs for Good Agricultural Practices in the U.S.

    BROWN A.B.
    North Carolina State University, Raleigh, NC, USA
    Most purchasers of U.S. tobacco now require producers to comply with some set of good agricultural practices (GAP). Each manufacturer or leaf dealer has their own version of GAP, but in general there are three categories into which GAP can be...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 01

    Approaches for the development of test methods in a regulated environment - tortoises and hares, purism, procrastination and pragmatism

    WRIGHT C.G.; WILLIAMS M.
    British American Tobacco, GR&D, Southampton, UK
    The development and application of standardised, fit for purpose test methods is a pre-requisite for the effective regulation of products. Without such test methods it is impossible to obtain the data needed to fully characterize product variability,...
  3. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 02

    Analytical method validation steps - benefits, limitations and an alternative approach

    COLARD S.; CAHOURS X.; VERRON T.; DESTRUHAUT S.
    SEITA Imperial Tobacco Group, Fleury-les-Aubrais, France
    In the framework of the growing regulations regarding tobacco products, interest is expressed in a wider product characterisation in terms of contents and emissions. This leads to the need for new analytical method developments. One of the last steps...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 03

    Statistical simulation to evaluate the effects of the number of laboratories and replicates on the precision of measurement method

    VERRON T.(1); CAHOURS X.(1); PURKIS S.W.(2)
    (1) SEITA, Imperial Tobacco Group, Fleury-les-Aubrais, France; (2) Imperial Tobacco Limited, Bristol, UK
    In an inter-laboratory comparison, different laboratories measure particular characteristics of a product. For cigarettes, smoke analyte yields in one or more homogeneous samples are measured under ISO-defined conditions. The comparison of different...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 04

    Analytical methodology for the determination of carbonyls in mainstream cigarette smoke - as an example for an appropriate method validation

    OTTE S.; INTORP M.
    Imperial Tobacco Group, Reemtsma Cigarettenfabriken GmbH, Hamburg, Germany
    The increasing demand from regulatory bodies regarding characterisation of tobacco and tobacco smoke products results in the need to develop and use methods, which are not available standard methods. These non-standardised methods have to be...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 05

    The 2010 ISO TC126 Working Group 10 Collaborative Study on intense machine smoking

    MARINER D.(1); HELLER W.D.(2); SARABIA J.(3); PURKIS S.W.(4); MEGER M.(5); EBERHARDT H.-J.(2); CZECHOWICZ M.(2)
    (1) British American Tobacco, London, UK; (2) Institut für Tabakforschung, Berlin, German; (3) Imperial Tobacco Spain, Madrid, Spain; (4) Imperial Tobacco, Bristol, UK; (5) Japan Tobacco International, Geneva, Switzerland
    ISO Technical Committee (TC) 126 Working Group (WG) 10 was established in 2007 by TC126 to undertake preliminary work in preparation for the standardisation of an intense machine smoking method. Recognising the impact of decisions taken by the...
  7. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 06

    Explanation of outlier analysis - remarks based on the evaluation of the WG10 study

    HELLER W.D.(1); EBERHARDT H.J.(1); CZECHOWICZ M.(1); MARINER D.(2); SARABIA J.(3); PURKIS S.W.(4); MEGER M.(5)
    (1) Institut für Tabakforschung, Berlin, Germany; (2) British American Tobacco, London, UK; (3) Imperial Tobacco Spain, Madrid, Spain; (4) Imperial Tobacco, Bristol, UK; (5) Japan Tobacco International, Geneva, Switzerland
    In 2010 a collaborative study was undertaken to investigate the intra- and inter-laboratory variability of the determination of mainstream smoke NFDPM, nicotine and carbon monoxide yields from a range of commercial cigarettes, a reference cigarette...
  8. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 07

    Relationship between puff intensity and smoke yields from a series of different smoking regimes

    TROUDE V.(1); PURKIS S.W.(2); CAHOURS X.(1)
    (1) SEITA, Imperial Tobacco Group, Fleury-les-Aubrais, France; (2) Imperial Tobacco Limited, Bristol, UK
    Imperial Tobacco Group data from two commercially available cigarettes, sold in the early 1980s and having 0 and 28% filter ventilation was presented this year at an ISO TC126 Working Group 10 meeting. The products had been smoked at different...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 08

    Generalized additive models for analyzing non-linear relationships between conventional chemical compositions and smoking quality of flue-cured tobacco

    HU Jian-jun(1); LI Guang-cai(1); ZHANG Jian-ping(2); ZHOU Ji-heng(3)
    (1) Staff Development Institute of CNTC, Zhengzhou 450008, P.R. China; (2) Technical Center, Shanghai Tobacco (Group) Corporation, Shanghai 200082, P.R. China; (3) Key Laboratory of Tobacco Science and Health, Hunan Agricultural University, Changsha 410128, P.R China
    Based on the generalized additive model, an identification method of non-linear relationship was constructed. The linear and non-linear relationships between the conventional chemical components (such as total nitrogen, nicotine, total sugar and...