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OCR Page 1 of 92EXHIBIT 2
A Short Explanation and Analysis of Methods of Measuring
"Tar and Nicotine" in Cigarette Smoke
Introduction
Suggestions have been made from time to time that cigarette
packages should indicate the amount of "tar and nicotine" produced
by the smoking of the cigarettes in the package. Even if it were
established that "tar and nicotine" have some relationship to
health, chere is no method by which a smoker can be accurately
informed of either the amount or the composition of the "tar and
nicotine" he receives from the cigarettes he smokes,
The term "tar and nicotine" requires clarification. Cigarette
smoke consists of the particulate phase and the gas phase. The
particulate phase has been referred to in scientific and other
literature by a variety of terms, such as tars, smoke solids, solids,
total solids, particulate matter, total particulate matter, smoke
condensate; total smoke condensato and smoke condensables. One of
the components of smoke solids is nicotine; the nicotine fraction
of smoke solids is sometimes referred to as alkaloids, or total
alkaloids. It seems more meaningful to use the term "total solids"
instead of "tar", and such term will be used in this memorandum.
HEST
COPA
50101 3225
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