I technical Memorandum &1T[UldandClpoR) limited RBEARPI i e5YELorkleHT CEN3E IOulk~~rOn IWGUNO 87,06,011 Subject AEROSO1 CIWIACTnlSAtfON OF SMOKE FROM SPECIAL FILTER CIG~RmES Authors N, Egilmez R,F, ~ielbel~oFn To Dr, W, Schneider, BAT Hamburg CirCulafiOn Dr, R,R, Baicer OF, D,P, Robinson Date 29th June, 1987 Rle 119 Key words CONFIDENLlAL -NOT TO BE COPIED QR SHOWN TO UNAUTHORISED PERSONS N BATCo document for Legal Services : Health Canada 19 May 1999 NEIRTTIRA1119 29th June, 1987 AEROSOL ~HAI~CTEIISITTDI OF SMOKE FROn SPE[lAL FtlTE~ CI~E~~ES SlMMARY Products Hlth special filters prepared by BAT Hamburg were studied for their s~ote aerosol properties on a puff·by·puff basis, The three filter types coded as "r", "j" and 'c" were observed to deliver particles of similar sire distributions (0,19 and 0,30 um c3unt and mass median diameters, respectively), ~he numbe: of particles counted In unit volume Has hfghest wi:h 'j" and lowest with 'r' both for puff·by-puff and puff-averaged data, 8 no I LT (~L I~ hlrl Ui~. Y ~ mull r ~ qi~ DT k P WIIYI~i~ PIMIIl, BMCb document for Legal Servlees : Health Canada i9 May 1)99 IanOOucrIOt fhe effect of smoke aerosol properties on sensory perception have been Investigated In 5outharnpton as part of Chemosensory tesearch Programne (1), In parallel to these studies, work has also been started on investigating the effects of different cigarette designs on smoke aerosol properties, The aim is to have guidelines for the future, on how to alter the design of the product to give a better tasting aerosol, I part of this study, some samples with special filters were provided by Hamburg, for the analysis of the smoke aerosol properties. METHOO The products tested included a reference and two special filter cigarettes, coded as Yr','j' and "cU, They were smoked on a single-port Bor~aldt engine under standard puffing conditions (l,e. 35 a312 second · every 60 secondsi to the nearest whole puff number, The experimental set·up Is shown in Figure i, I last sampling/dilution system, composed of a snatch-valve (2) and a glass ejector was used to dilute the fresh smoke ~05.(~d, prior to the pa~f~e Relsurements using a laser aerosol spectrometer ~-1 (by particle Measuring Systems Inc,), In these experiments, six Jnoke sunpies of ~1 cm3 volume were taken between the times of 0,2 and 2 seconds during each puff, Following 1 rapid dilution, particle counts from the six hatches were accu~lated in the memory of the llS-~ to be averaged later for the whole puff to get representative · O she distribution information, a nlr ~lr Ict IJ elrunl ~*~. II ~p~ let · he ~ r 1~1 I *~~~ pmMI. B~Co document lor Legal Services : Health Canada 19 lly 181 At the completion of 1 smoke run, the data for each puff was statistically analysed to obtain: - count mass median diametets (CHO and HnO, respectively) · geometric standard deviation (4) and · particle number concentration (n) on a puff·by-puf~ basis as ver as puff·averaged values, Oiluted fresh smoke sizings made in this manner were compared in the pant [3) to tl~ore reported by Ingebrethsen (4, 5) who used a light scattering technique or undiluted smoke, For an unventilated, filter tipped cigarette, there las good agreelent io the Peen particle size measured, although the nulber counts in the current system were mueh lower than the undilu'.ed smoke results, The discussion on this discrepancy is given elsewhere (3)~ RESULTS The pufl·by-puff delivery data as well as the puff averaged values are sumnarised in Table 1 for the three products tested, The experiments were rep~ated five times for each filter type. Figures 2·4 shon the count and mass median diameters and number concentrations for filters YrU, lj4 and uC', 15 1 function of puff nu~er, The error bars show the standard deviation in replicate runs, The variation between products of sane filter type was somewhat least with filter'j", The general trends of slight decrease in median si2e and increase in number concentration of particles were observed in all the products as expected, d I~sr I..1 t IU.K. vd ElpsllLMl~d fbll rP311 mull nor be ehp#d or Ihom to unlulhxiud pMu 'J; BATCo document for legal Services : Health Canada 19 May 1999 T~BE 1 IEIOSa OHA8A0T8RISRTI0N OF I~E RO~ OIFWE#T FLTELI Gaaaetric tount RE an ~1~ ~6 an Standard Humbar Diameter Diameter Concentration neviation yl (~jl (pm] Gm) ~bg) ~peFilter r j j c 0,19 / 0,19 ) 020 1~30 10,29 10~0 j 1,45 j 1,~ 11~5 / 1~9 12,14 ( 245 2 ( O ,19 ( O ~9 1 0,20 1 O 29 10.30 I O ,32 I I,lb ( 1~6 1 1,47 ) 140 i 2 ,2B 12 ,17 L 3 1( 0,20 )0~19 1 020 1 0,311 0,30 1 0~0 11,45 ll,li 11,46 12~11 254 ) 2.80 c5 0,19 ( 0.19 1 0.18 / 0,311 O~C 1 0,30 1 1,46 1 1,(1/~46 1 2,24 1 L83 ( 262 ~ 6 / OJB / O ~B I ~~ / O 18 / ~~ )6 29 1 1,U 1 1.a6 1 1A6 1 2 21 1 3,80 )262 I i 0~9 ; 0,18 / 0~8 ( 0,29 I C,d / 0,29 1 1.16 11,17 1 1.46 1 2,40 / 3,02 ( 2.74 8 0,18 0.18 10,~ lo,29 / 0,28 ( 0~9 11,16 ) 1,99 (1A7 /2,43 1 3,03 1 2,88 ~erlge 014 1 0,19 / 0,19 1030 i 030 / 0,30 ( 1,45 WILl/tQILO/LI a ~~ I L~ 1 BL J Lrl~·~~ nl rC I· Kx k 4Ld ~ lhp'n I ·1Yd mt BATCo document for legal Services : Health Canada 19 May 1999 The puff-averaged diarwterr were the laa~ for all three filters tested~ The n~~nber concentrations were different however, filter 'jY Ind filter 'c' having 281 and 191 higher particle counts respectively, when compared with the reference filter "r', The puff-averaged hisrograml on figure 5 indicate rmall changes in particle size distributions which are washed out in the calc~lati6n of the median sites shown above, REFERENCES 1, BAT Report No, Rr!,2059, 13,10,861 2, BAT Report No, RI~,2024, 1,4,86, 3, BAT Report No, RC,2080, 8,6,81, 4, Bdldridge, O1Wl ~ad Inqebrethsen, 8,3, UAerosols: FoMnation and Reactivity", 2nd Int, Aerosol Conf,, Berlin 1986, Pereamon Journals Ltd,, londonl -· 5, Ingebrethses, 8.:. (1987) Aerosol Sci, Tech,, 1(4), 423, O IWt Bn.r IU.K. ~nd Elppnl ~nnd, fhh npon ma~ aol k ropid or Ihovn to nlld#iwd p~Pa~ L~ BATCo document for Legal Services : Health Canada 19 May 1999 w r m c Z w w E o O r o r x in I~ ~n w 13 J X P: r I I I I U z t I I I I r~ 1 u .o P I ~ ~ c~ ~Z LO E t~ O~VI O U rl IY. I w r 41 10 1 >-II g O W ·Z w U O w I~ ~ S I I vl Z~ wO dC~ wr v10 Q O B \O N In BATCo document for Legal Services: Health Canada 19 Wlay 1999 R*6 t: b~-·~ L~ " )~ ~i rL yY. e· L~~~ 114 20"15 I j ~l~oo e i I 63~5a ;I.:2S RUCC ~I I__-, (1,108 b, Ha,asa 11 J!S 1 1 3 t P~FB Ne 8,215 C· Yl,yg ~c,lsa 51.18 ~B~IO ~0,075 ~o ,ose ~,a?5 I 1 1 PUFF He I0,115 I,hDr1311 I 'iFii jgl,YS ae,~51 ·rtn nUFR 'c' n a IG,IBO O b.s 1 ;s,asel a s a,s'.s i N 1 3 5~ i a W pOFF ~R BATCo document for legal senicet : Health Canada 19 ray 1999 RCUT~ ~c~kL3 n rgLLI i i,~ pwi P~ ~Fb lih I 1 I T i 1 I I I Ha,lS t'3' pll 1 2 3 S -- ---~' PuFF HP ,,,, i E i I r ~I 11~5 "n""" PI~IP yl I ·- i ~ --5 i. ---1- P~F WO t, ' ' i ii ' 8.?5 1L1 yllTeR 'c~ Ad,l5 d N 1 a ;a,as ___ N 1 2 3 4 5 PUFI No a BAfCo document for Legal Senlees : Health Canada 19 Yay 1999 ~GI,RE ii : lunhrionYu~n~i~M I' ~K(i"YLb~ hi r~, i,,w~i i;· dif4~·F.iY ~d~I 1,3 13 d:,B f9 r I ii i FlltEP It" el,e E4 II I a ·3 6 a B 1 c3c~FF ~Jp 3 ,B 39 1,5 E9 f I j 2,8 E9 FILTER ,j" S''i '9 I~B E3 F0~519 IH1~1 5 'paF~ ~P 3,0 f3 215 E3 k'" f9 1~5 E3 S O ~lJ19 N H 3 ~O ia,s f3 N cn 5 Cn PIIFC~~ BATCo document far Legal Services : Health Canada 19 May 1999 a~ b~; ~I ii~~E 5 b e L·=I r +I · " Il e H3 1 H H II I II I,a g,l 1.4 n::~OHS 6 r b U Ulh '''''~ i. H e H3 1 N H II I I ~· L1 n::a0ws t I C ~lrl o~ra c H I E H3 L N M O Il I' I i I I I I I O 11 I I I I I I I N a~l ~·' d,6 IJ~ I;elOWS N BATCo docunsnt far Legal Slnksl : Health Canada l) May 1)1 FFiS~ 26.9,8; if?F?t~ i~l! ~ee li!~er :a!~~ Il:Li,~fl ~~~ ~lz~z~l nlP1E~uCt inicwa:i~n on these ii~pla~ ;h~clJ be tnated sj c;,fidaniial. is·ill: I r I j I E I (r·;lrEncai I I i~~annell !e;th i; - ci~v·t;t W f3 84 mm - fil~s :1 I :1 n~a HE:j~: ti :i:~t :cS~ I j~p I t~b b:3 ap ii:~tr vw:. ;:~ Fera, t Cig.~q. 1$ :; C,U, Ec" nup~a 8,2 8,; 8,~ 1,00 1 Zrj,3 j T.T l!,b mg F6uF 16.4 !7,9 1:,3 mg C~ tb,j 16.: 1:i; n[ a o a in u BATCo document for Legal Services : Health Canada 19 May 1999