Tobacco Documents Online

a R ti~- D.te: ~ , f+ob',y,.~ S•. s k .&. .. ... .!_~~.... • Inereasing concern and publicity about fires and fire fatalities which ~pr may be caused by careless.disposal of lighted cigarettes hadtled to a~ ~~ ~review of the ignition prevention (self-egtinguishing in furniure; etc: ): ~ i tt 4c gare e :It is known that in an ash tti ci .ray situation cerangarettes ~4with iightl.y packed tobacco rods, 'or with high chloride tobaccos_ 'n ~ " ith v ~ wery slow burning rod wrappels would noi ' also been assumed that the static burn rate 'af t, would indicate whether or not a standard tes ' extinguish. ' To reduce tar and nicotine number cigarettes the tendency has always been to mov s~3y; more rapid burning and lower rnd'f counts_';?Po ~ vention cigarette in the sofa or mattress situation would be one which ' ~ `~ -s - 9fk , As a result of these interrelationshi s in the " p c ~about ciga.rette design ft has come to be assumea u~a.t an Ignition pre .: . ~l wouId also self-extuigwtsTi mM e ash tray or in e static burn test. In the interest of consumer acceptability we have striven for cigarettes which would continue to burn in the latter case without regard to the . former. We have said that, since slower burning cigarettes give ~ higher delivery, the rapid burn low delivery is preferred by the con- ~ s -:umer even though ~~ t:. ftion potential may begron prevventionv cnigarette t~•= .eaplored what the r uirements are for an ~ ",in the sofa case and whether or not these requirements are in confhct =r f^.,, , clS9'~ylrr~' a..c-,: r ..,v?tNsk .o ~ ~ ~~ PHILIP MORRIS U. S. p. Fh: INTER-0ff/CE CORRESPOHDENCE L~V ' s<I s,. ~...... ~ . ~~,.-,^r RICNNGND,.. YI,NGINIA-~ ~ . ~~ A Dr. R. B. 5eligman . _~ .IgIIition preventlOn (,'(g$rettes h +with those properties needed to give the consumer a low delivery product which sustains burning in the normal usage situation ~' .t a : ;~ ,,:s < ~- :. r A ~.~ .r It is therefore r m d d ' , , eco men e that we initiate a modest program to ' study and establish testing procedures for the determination of igaition t t ;; , po en ia.l of burnmg cigarettes. Once a standardized test has been : established we can determine the importance of burning rate and other ro ti f t p per es as ac ors affecting 9gnition potential. :,. ... , ._: . , .. ;., ,. ,.- . .. . . - _. N A program to this end was outlined by Henry Merritt in 1977 and provides . a good starting point for the investigation. I would suggest allocating W , r ER:.~$.i3 ~~!~ks July 11, 1979 . . ". .. -.. a.,. s,:asx..r( .