.: This site will provide a link to information on Kentucky Reference Cigarettes.
historical Kentucky Reference Cigarettes are manufactured using a standard formula
that is specified by, among others, the University of Kentucky
Tobacco Research Institute. They are provided to researchers
worldwide as consistent and uniform test items for inhalation
Products include 1R5F, 2R4F and and the 3R4F.
For additional information visit the following website:
Reference Cigarette Program