Abstract
To determine the effect of inter-bolt variability of duck #6 fabrics on cigarette ignition propensity, four bolts of duck #6 fabrics purchased accord ing to guidelines described by the National Institute of Standards and Technol ogy (NIST) were used in testing the ignition propensity of two experimental cigarettes according to a test method proposed by NIST. Results for each of the cigarettes were highly dependent on the bolt used in preparing the mockup. Inter-bolt variability of cotton duck #6 fabric was found to produce a statisti cally significant difference in the ignition results for the same cigarette. The results support an earlier study performed with duck #4 fabric. Numbered duck fabrics are no longer manufactured in the USA. Use of imported duck fabrics might introduce additional variables to the cotton duck fabric proper ties that could well lead to an even greater variability in cigarette ignition pro pensity testing.
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