7 U
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RESEARCH LABURATORY IRESEARCU & DEVELOPMENT DEPT.
November 24, 1958.
EVALUATION OF "DIPLOMAT" CIGARETTES
Samples of VDIplomat@ cigarettes were given the laboratory
by Dr. George F. Wright during his visit on October 31, 1958.
Theme are 85 mm. plain and oval cigarettes, made by the North
American Cigarette Manufacturers Inc,, and are advertised an
OThe Safer Cigarette". It to claimed that the tobacco h" been
treated wto, reduce the harmful physiological effects of nicotine"
and to produce a lower temperature of combustion.
In view of these claims it was thought desirable to examine
IDIplomat* cigarettes for whole tar and nicotine content of the
smoke, nicotine content of the tobacco, amok@ temperature, and
/Owl' temperature of combustion.
The results of this examination are outlined belows
THE TAR AND NIUUTINE CONTENTS OF THE SMOYX-,
Analysis No. A-154
REFERENCEt- Modified Foster D. Snell Procedure for the
Determination of Whole Tar and Nicotine in Smoke,
Due to an insufficient number of cigarettes only three whole
tar and nicotine determinations were made on the smoke by a
Modified Foster D. Snell Procedure.
I For the sake of brevity the pertinent Information on thene,
cigarettes has been summarized belowt-
1) Average weight of 134 cigarettes at 12.0,U" moisture - 1069 mg.
2) Weight range employed for selection of cl rettes for whole
tar and nicotine determinations - 1070 * On mg. (unusually wide
due to sample limitations)
3) Average pros Sure drop of 114 cigarettes (for an air flow of
1050 cc/min.) - 3.5 Inches of wator. Pressure Drop Range
1.3 - 5@.8 inches of water.
4) Average pressure drop for 60 cigarettes employed for whole tar
and nicotine determinations - 3.4 Inches or watere Pressure
Drop Range - 2.0 - 5.1 inches of water.
5) Average weight'of 85 imm. cigarette papers - 5Q.64 mg.
6) Nicotine content of "Diplomat" tobacco - 1-57% (Average from
individual results of 1.56% - 1.58%)
7) Avaraea porosity of 8 cigarette papers - 100.2 cc/min.
Porosity Range - 94.4 - 104.0 n.
6) Th cigarettes were smoked to 23 butt lengths under standard
The cigars (one 35 cc. Puff/min.)
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BATCo document for Province of British Columbia 21 April 1999

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The smoke analysis results have been records& In the
accompanying table.
REMARKBi-
The whole tar and nicotine contents of the smoke as well an
the nicotine content of the tobacco from Diplomat cigarettes were
found to be higher than anticipated In view of their advertisement
an $the safer cigarette*. In fact, the smoke from those cigarettes
contains as great a percentage of whole tar and nicotine as is
contained by the smoke from 80 mm. Pall Mall plain and cigarettes
(approximately 4o4% and 32A respectively). Hance It would appear
tbALt their advertisement Is grossly misleading from the point of
view of tar and nicotine contents of smoke. It is possible that
the tobacco has been treated In some manner that might Imply the
statement "The safer cigarette". The nicotine content of the
IDiplomat* tobacco is also fairly similar to a typical value for
the Pall Mall blend,
The rather wide variation In the tar and nicotlne results
may be attributed to the unusual variability of these "DiplomatF
cigarettes with respect to both WelFht and pressure drop.
It 18 noteworthy that two of the six packages opened by the
laboratory contained only nineteen cluarettes.
COMBUSTION TEMPERATURE
The combustion temperature of "D cigarettes was meas-
ured by our standard method, that Is, durin puffing at the rate
of one puff per minute, 35 ml- volwoe, 2 second duration. An
usual, the thermocouple wires were Inserted at a distance of 15 mm.
from the lighted end, perpendicular to the long axis of the
cigarette, and In the case of this oval cigarette, along the minor
axis of the cross-section. Because of the small number of cigar-
ettes available, no selection by WOiEht was possible.
The average of ton determinations gave a combustion temperature
of 8570C., a value somewhat lower than that for 'Player la Mild*
(879 In order to ascertain whether this apparent reduction
in temperature is a function of the oval Shape or of the tobacco
used in the cigarette, similar measurements were made on vVirginia
Ovals no yielding a result of Al. (*C.
There remained the possibility that oval cigarettes did, In
foot, burn at a temperature similar to that of round cigarettes,
and that we were recording an erroneously low value, due to
excessive conduction of heat along the thermocouple wires.
Accordingly, another series of experiments was performed with
Virginia Ovals In which the thermocouple wires were Inserted along
the major axis of the cigarette cross-section. This was expected
to reduce the amount of conduction along the wire and henoo to
give a better approximation to the true combustion temperature.
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'Cho result of tUs experiment was 8530C.
Since all three temperature values lie in a range of WC
It can bo concluded first, that the measurements give a valid
estimate of the temperature of combustion or oval cigarettes
secondly, that tits temperature Is significantly lower than that
for a round cigarette; and tnirdly, that "Diplonat" cigarettes do
not exhibit a lower temperature of combustion than conventional
Cigarettes of oval shape.
;MOKE TKMVRATURZ
Temperatures in the smoke of $Diplomat$ cigarettes were
4stermined in the usual way. Heaauramenta were made with the
thermojunction placed directly behind the cigarette at a distance
Df I mm. from tao end and normal smoking conditions were observed.
Although no selection of the cigarettes was possible, the results
were reproducible and the determination was made an a sample of
five cigarettes instead of the usual eight.
The results are alhown on tt,.c accomranyine.,
graph, and the
corresponding curve for wBuckinChaml is ahown as a reference.
rho difference in the base lines is due to a difference in room
temperature at the time the exparimonts were performed. It
should be noted that the butt length refers to the lanL9.,th at the
b:SinninE of a puff and that the puff consumes approximately
mm. of tobacco.
,,M -TORY
RESEACA
CCM/BJS/FF
BATCo document for Province of BritiSh Columbia 21 April 1999

0
0
CL
0
Cl#
SMOKE ANALYSIS RESULTS
r+
8!
-brand or Average weiFlit -'Qnole Tar -0 -of rn- a
Cigarette in mr,. Wt. of Tobacco -vt. of' Tobuccc he
0 Uletj
0 Smolced/CiEt.ln ked/Cift.ir
-MO
Ms. (I"Olsture irp. (1101sture
@'ree bazis) @ree basis)
0
_% Diplomat 1069 6 28 9 55 642-4 2.1 .328
heold Nov-4/58 4 29:0 @:51 6L2.4 2,0 .308
637.7 2u.3 L.12
@L@ - 9 1.6 .276
43-6 _-_0 7.73-9 12. 7 7 7 T013@
0
0
3
cr
co
to
to
I 00 I

0
0
CL
reo
,bo
15GI
CD
0
-%
r+
cr
BuckIngban
80
CD Dlplpnat
to
80 70 60 so 0 30 20 10 0
BUTT IMOTH
R9 I z loo I

> 1APH OF 3MOKE TEMPERATURE VS BUTT LENGTH.
-i 1 2 3
4
0
CL
0
1. Consulate ncrms'
Ws
li 2. ConsuluteJ,2 I/Z it
Pall mall K.S. PI&I
Rcthmanm K,S, IlaIr
'160 lb. M-'
140
0
120
0
0
E, 100
cr
60
CD
CD
CD
80 75 70 65 60 55 5 5 0 45 4 0 3 5 3 0 2 5 20 1 5 1 0
BUrr UWGTH mm.
6 0 0 @1-

!tl @1-1-
TABIZ II
TRO IN THE SMOKE OF SU
CCMIVE
PUFFS IN OVER WEIGHT CIGARETTES AND
CCM A TM NORMAL WEIGHT CIGARETTES.
otairans K.31 Pan
ample consulate Consulate R Hall X,S,
Puff N Plain Plain
1% No, 1170 L.11 1094 3-0 1200 1.5 1090 20
1 77.5 78 76 78.5
2 77.5 78 76 78.5;
77.5 78 76 78.5
77.5 78 76 78.5
5 77.5 78 76 78.5
6 77 - 5 78 76 78.5
7 77.5 8 76 78.5
8 77.5 @2 76 82
9 78 116 76.5 90
10 94 158 81 118
11 150 19 102 174
12 198 191 147 198
13 176
40 K,
CD
011
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BATCo document for Province of British Columbia 21 April 1999