Cooperation Centre for Scientific Research Relative to Tobacco
Centre de Coopération pour les Recherches Scientifiques Relatives au Tabac

U.S. Patent 7,578,298. Improved delivery of additive materials to cigarettes is provided through the use of one or more capsules containing additive materials, such as flavor components, in the filter section of a cigarette. The sealed capsule or...

An understanding of the behavior of smoke stream within a cigarette filter is very important to control the pressure drop and the filtration efficiency in new filter design. The purpose of this study is to investigate the smoke flow pattern for...

Since the pressure drop and ventilation levels are the most important parameters contributing to filtration efficiency, it follows that one can predict changes in efficiency if changes in pressure drop and ventilation are predicted. An earlier paper...

Many factors contribute to the degradation of materials, or components, under environmental weathering. Primary contributions are expected to come from exposure to sunlight, exposure to moisture and mechanical agitation. Since these vary so much...

The cigarette ignition test method developed by NIST (National Institute of Standards and Technology) relies on cotton duck substrates because of "essentially constant cigarette ignitability in successive batches". Round-robin testing in nine...

A test method that relies on cotton "duck" fabrics to determine cigarette ignition propensity on upholstered furniture and mattresses was developed by the National Institute of Standards and Technology (NIST) under the Fire Safe Cigarette Act of...

The objective of this study was to determine whether ignition results, similar to those observed under conditions of low air-flow at Brown and Williamson Tobacco Corporation Laboratory, could be produced in our laboratory. An air-flow channel and a...