_Vi ;73UT MIDDY.,
E1.
>
7- L.L. (in the C1740.z
7, 5Tvcc-.-*' 3. ~.T. Lc~.Icm
R:. F. Chimook w-.s unabin t~:
7,3 7 ",3- T~Ir. T!T AND
E-,jI.1 'C," 7:7 r
_SCFZ? Mic
I%- B.-T. AND C_-.
;~1:C:N[;=' ~:GN (F
LUX- I E"
ZU C--ERIKENT OIN
7-e~te fo,-,r ito:w were dealt wltl,. togoher.
Mr- Amdericn outl!xwd Um dlfferent vathods
wEployed by those Urwelate!'T
A. H.A.7. Sauth&qryton: Eleatrostatic
-7mcipitation on both the 3.A.T.
and 7-Us! mac*-ines, followed b7 doots-7.1natiar.
of dx-y we!,7,)~t preciritation after
91:L-rination
of ec'! Voiatilea.
?_ _3k,_7. LiTgrpoc~.- E:t?,o' 3woking 4achLne -
date:"Inatiar -)f
pr'scipitatior after for water '.FArl
7 ischer) but vilthout removal of other Wlatiles.
G. I.T.C. Canada: B:L-,d & Phipps Xachline.
D, C,,3, P%erton As for Liverpoel.
T-e Tuestlon of ve-riit'.ons in tho mir r1ow for
mSfs hvtO alre-!dy
b-ri covered in a rr-v1cu3 11-icus2ion in the
:aborstory. Mr. And*-,s.-,n
47 tzched scraiderable irmortcnca to aabi&ving a
"mrs"s 'balance". ThJ3 Omld
4 -free method but not ~-91.n-, the Karl Flocher.
=.a ~.y the volatile
V-. ~,1'11v~zon said he had na' 'nae oceseion to
endenvour tc achieve I
-,.!Ance" jr, the I-L-ma leacr"ied by !Jr.
.'-Aerzon. 11-a C.C. retention testing
g'.1-70 t bill-irCP -3 thI el.~ Tloke collected
fr-x,. the
L!_'tar &n(1 thm dry smke collected from the tube
total-led the ~r! smoke
M ' 0,4
-o the f`lter. He w-ent on to wmlaln the t- . :_n
Jet~i-_, _%.-d
"le renacna for the V..o-.)tiar, of zh~s rmthod,
w-1e;- ---e-~- -
that rhe iarlation Ir. ch-_r-rterl~-i_-2 oC Indiv
dual ci~-"ttea
i c.
-t Ite attaire,! by ot~,er -er i-X4.'
%M71- 3ur. acc-rn- ras,;:tz c r~_
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BATCo document for Province of British Columbia 2
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unless large ouantities of cic.-arittes were
arroked. Dr. Felton ,_e. R--.
Laporte both indicited that t~)e,- ueed 40
cigmottes -,sr test, whilst
Mr. Darlies said that he used 5 cigarettes per
test, the WMG as C.-I.
Mr. Willimmson undertook to circulate a full
descri:ytion of the '-- .
smoking nethod, an.-! will also r::pcrt the
results of sarlier tost2
designed to 9~:ow the differenae in retention
r-;!sults as between --'T)a
attached to the cigarette with Sellatarte, mid
others not attached.
Dr. Hughes then outlired the Southam,-ton method
of nicotine deteiT.,.raticn
and t~'_s was com-,nmd with the practices at
AlDertons Liverpool and Montreel.
Mr. Anderson emphaalsed the advantages vhieh ~e
considered atterted t~e
volatile-free method of tar daterminatiou. The
Cl~airman pointed out t'l-Lt
this - 'to be a flandamental. point, as C.C. had
worked on the nrinc ple
that they were ooncernea with what emerged from a
oigarette aM r-aached
the smoker's tongue. The sltr~naticw of all
volatiles from the tar
are~-ted an entirely new situation. Kr. Anderson
felt that for the 3ej:O
of excerimental accuracy the complete rsmoval. of
all volatilee from the
precinitat9d tare waz essential. Wx. Williamson
undertook to consider
this ooint further.
It was considered that the discuarion could not
uzefli-'Iy be purened withcat
the benefit of &*curatoly controlled ex-erimental
data, and it wa3 agr"d
that trioartits tests should take place for this
cau-pose in the Labcr-ltoriez
at B.L.f. Southampton, B.A.T. Liverpool and C.C.
~Llpe'rton, as foliovs:
A. B.A.T. Tapered Brass Tube Holder Y. C.C.
Suction Holder.
B. Dry Weight ?ar Determinations on a Volatile
FIres Basis v. Volatiles
other than Water retained. (larl Fischer)
In both series of tests the retentions to be
determined bcth by referenne
to tar &M b7 reforerwe to niootine. E_Ac~ serise
to campris* Estron 5/100,
T.LT w2d Myria filtors, 25 mm circumference;
smoking cycle 35 ocs. of
2 second& duration owe par minuts; fUters 15 -=
long; 9 mm butt;
atirospheric conditions as near as possible to 700
60~ R.H.
V. I-, --. 14- - *-. -~ - 111~ 1-1 . NA.". :- t,
I,. +r. 4 ~_- .)4~ 1- 1- ~
On .1r. ~ooperls suggestion it w" agreed that
B.A.T. 3OuthXNI4YtOn 8h-IA
pr-ffido sh cigarettes, flully seleated, whilst
C.C. sho,!ld -:rovide t--9
am le
r;.h filters, also fully selected, conditioned and
read.7 for use.
7)-A ftlters w-ad be selected to 1 2% fcr wei.,htl
Z 5" for Dre,,suro drop;
and 1 .1 = for circumference. Mr. Wil'iamoon was
asked to pre:)are a
detailed prrairrame of thfa toot verk for
comi0eration by and agreement
w-Ith So-thampton arA UverDool.
2. CN TIR .42ND NICOTI'i-E FIRMS OF VA?.:ATIC';
ME; ;MCI.KT-?.,G ...V-7_r?z
in -only to Yr. Anderson's ircuirioa Mr.
Williarmon said there was no
~rfor-atilon cancerninp,, the effects of varying
rnck'-p cycles or tho retertion
ca,-aeltv of filters, other than that nubi13hed in
the C.C. isaflet.
':: 7- - S:CH_-IE
_TICI:~~ GV 7''. 1, SY k.
-r a".1ained t*-at there wns a diff-pr-rce In tho
shone of t~e
prscipit--~!.on tubes tit the ertr", end as
between -.he B.A.T. &nl the --.he!
.nnc Ires. Different s-stems of hol4ers were used
- a ttrvred brLas 't--be
'c- tne `. T. r-nr!~,4nep P--Y-4 the 311Ction
holder fcr the Fthel nach;no.
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BATCo document for Province of BritiSh Columbia 2
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:-n SoU.-t! cnndiz-i -2 a'Dn7c.,% I a ni dr,.- e;
ih.t tar
.-r. the t,,.be. Tne *- 'at th ~ i mi;,ht be &is
to thn .,f t.:;e diff,4rent nwrhci licIrlinr as
b-~.-o!en th- t3-j,-75d
tube t--~ z-,. Aion grip whan t'he --lisrotte
stubb beer,368 mo13t, or in
the nf Ltere being, some s~xlnkr_qo in the tip,
the auction
grir be!x.- to renrod,~ce t~e o~' hwp-n lirA. This
cmi-In
bt -.-cved or disproved by chfLng!.ng round the
two ty..-)es of liollder,
and Dr. Ft-Iten ).greed that this could be don-a.
Mr. Pxeerron also rai~!ed the of the e!fvct of
changes in the shape
of the ortessure/ time curve on the amour-+ of
ratent-Inn. Mr . *,,'I1.1Iejrjs-.n
replied that Timogranhic wtu,'Aes had baen ft:a,~e
of the ores sure /t.,.re curve
of differe.-t s-making mach.'~ies and of 1-z-An
smokers, bA he ccm~ld rct say
whather and to what extent tgLr collection or
f4ltration might be affected
b7 v changes in the shape of the =-vs. Ho added
that he lo-tted w"Iether a
ch.v%ge tn the shape of the Ethel curve could be
induced - for experLrortal
~_._,osss - w-ithout a2terling the puff duration.
7. OF 'FTF-SSM -DROP RZU77D TO CIG~_F:,=F
OF FEND DISTCRTION ON CUITI!Z, WITP `,RT11CU1_kF
REFE.',_L1;CF TC- ESTRC,.
4 r. PrOerson said that the enhance-ent of
nressure drop ()C,.own as C.D.R. -
Cut Down Ratio) -hen full lengt, rods &-" ~nft
down to six short lengt.1i
filterst waa not confirmed by their tests. Mr.
Williarson said thpt a-%
average C.D.R. value for Aoetate filts-3 was 1.08.
-Nor ?,N-C tests had
been carried out or, &111 qualities of fi--ters,
and V~eee s-owe". that there
was considerable vext-atior., but that for each
quality of fUter there was
usue typical valus. Far for exmcle, the G.D.-A.
Vazue W-Uld
" 7y a t
be 1.20 or greater - dependent on the quality.
3upertax Cattor. &!so ha,_4 a
high value.
It tram-pirtd. that the Southampton teats
oonsisted of reconnectirg the six
short length filters *ith Sollotape to give an
aggregate, hilst Alpert,=
was-=*d each short langth seoarately and obtained
their -tCgregate bT
tata.Uimg these i-Mividu&l values. T-h*ee
obser-rations s,,.p -sated thtt t"ne
C.D.?. must be a function of re-ontry turtn-'ence
rather than the conaequence
of sixface distortion.
kr. tjuier3cyn said that, 3cutharaton would r-eat
their t;-et, le~v~-a 't gso
between the short leneths when reembining t-hen.
-,r. F,~Itori cnnf1_-, ',-nt
B.A.T. pressure dron values for filters for
teetinp wer" d,!termined from
the full length rod znd not from 1.~!a a-ort
length fi--terq. 7he i'he Mvin
oointed ant that the uncavering of this
discrenkncy in test procei-xe meant
that &.11 Drevio,-.s comonrisons of tnet reetilts
bet-men 11:,..tor Are. Southwnpton
were irrvalidated as the C.C. reportqd s~~,_,rt
ler4th presnurs iroz values -,00k
into aocount the ~.D.R. whiist Southamp-on's did
not. in rep!-: to an ln:iuir~q
Mr. t-ond ex-Diadned that the pressure drop of
slort length filters '- *aO. Indeed,
b"-. fo~-n~ tc va:-,, after 3one days' 171ng, Int
the v~tr.4ation was no-~ a2wa7s
in ins dJxgction, and appearsd mermiv to ref"Iect,
char-Fes :n atmoa?heric conditzone.
,--iAT VARU7.10.NS .21 ;,3T-RPN S'1MrF1C-T:.'1:
G-1 CCCU~~ 'i'07:F
-ellor e"res,ad ar interst !n thq extent *,.'
"r:ation of crtnn rntio
in -vLra1f-ct,;_r~d ro,!s (resi,`ial cr-rin rrt-,)
T~-,e epti:-ated th-'s as
.T-jer of 1 1-~-_ in to !-tr. !A~orte he con'i .
th t
belnp - t,,~e ~, r-e,4 A
-e'u~7-,Antr tc t~,s resl,'Mal crim-) rat!,) wou-
be -L-~e t- t!-i
v,",:dn 'ntc line - MCtf_c-tion. in to '-r.
'7,3ton, , -t
w4 tj, 3-
P_ i.,r art tc- .7" -..e -W
--man w
e r - a' 1'. wfts ;-ntanded t-. be '-iit '-e
'T.~-tpt:~csd s,)ITM
0- 7~~--t f-icte~rs w ic~-. c-Lid rssnit in
v,~riat2_-;ns. 'r. qlt-.n 8-1-3Z 7.L;Iired
C)
IQ ~~ I).-
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BATCo document for Province of British Columbia 2
November 1999


eameerning variations in the spray pattern. The
Chairman indicated that
long torm variations eo&U occur, but It was a
problem of manufacture
to avoid V~. There would be no signifieairt short
term variations. Short
te:u variations I& p1sattelser content were the
result of changes in the
pattom of the materlal being sprayed. mr.
winismeon saie that there Vas
me etatistioal infmmation on the extent of short
term plastioia*r variations
(fan 15 am to 15 ime Isartb). In his orperienoe
there was a good chance of
evem valsies as betwoom individual rods of
eoneecutIve mana seture.
9. QUUM COMMM.
Dr. i qu&W results, dbiteined from tests carried
out a few yea" &Co.
fte Chairson stated that at the present time the
variations normally found
In manufaatmre are:
Circumferences .3 m
Weight: 2%
Preesto Drops 10(
P2 A&ticiser: i~(e.g. 6% - 10% of Pl.)
Dr. Zvere "marked that Vwss variatihn limits
represented a significant
Impsevemext, an earlier "malts: Mr. Od*3-1 agreed
that this was so.
The Chairman then entlimA the methods followed in
the C.C. factories for
sat innow I A cc quality In nanufactwv, and
aLroulatod som cKupleted
forms to 1.11wtrato how the system operated. Dr.
Ivers and Mr. Brockwell,
empressed themselves satiefled with this aaeount.
The diseassien terminatood, with Mr. Anderson
gracefully exy. ssing appreciation
of the end- of the meeting and of the arrangements
winde for B.A.T. Is
reeeption.
4 e rc4LL
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BATCo document for Province of British Columbia 2
November 1999