5, E P 1,;
EVALWiTICN Or T1.12'
H.D.. P. B. F T L'_1' C
REPORT NO. T. 51 AUGUST, 1toT21,
AWTHICRA: T.I. Wilson
!SSUEM BY: R.G. Nicholls jOB NO.: 5156
DISTRISUTION:
i!r. G.A. Preston/."'Ar. P.111. Den4on. @,ODV No. 1,
Vx. K.F. L7@eany 2,
Sir chcrics zilis, F.F,.S. 3,
4, 5, 6,
rr. Finghas 7,
Dr. R.A. S@zrzford (2) 8, 9,
nr. R.S. Ulade (2) 10, 11,
herrn H.E. '-ottorf (2) 12, 13,
V. S i
mr. j S:Cev 1,#
.6
".,.r. S.K. Reshava 15,
..r. C.D. Peacoe"A. 16,
R. D.D. Lib---,zy 17, 18,
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BATCO document for Province of British Columbia 19 April 1999

SUI-t%VNRY
The Monsanto high donsity polyethylene (H.D.P.E.)
filter has been evaluated. .-&:-.is filter is formed by
forcing H.D.P.E. foam, through a heat-ad dye to produce a
filter rod. This filter lhas a significantly lower
weight than the cellulose acetate filters in current use.
it also has a higher filtration efficiency for T.P.H. and
nicotine but a lower efficiency for phenol than does an
acetate filter. it has no effect on the riajor vapour
phase components. There is a slight reduction in the
nitromethane fraction of smoke from these filters which
is likely to be indicative of a lower biological activity
of the smoke.
than Ii.D.P.E. was used as part of a dual filter
an external consumer panel could detect no difference
be:t%%Ieen cigarettes made with this filter and A control
cigarette having a dual acetate/myria filter.
At this stage Monsanto Is not in a position to
make the R.D.P.E. filters to an accurate specification.
it is recommended that Monsanto be requested to
produce a range of filters o
.4 different specification'
in termz of weight and pressure drop to determine how
well they can achieve a set specification. 'it would be
as well to order at least one of these specifications
in sufficiently large numbers (possibly 50,000 to
100.0000) to establish'the long term variation in
specification of the H.D.P.E. filters.
CD
E-1
BATCo document for Province of BritiSh Columbia 19 April 1999