Product Design
We Want the Smoke PH Measured
Abstract
Description of proposed method for experimental smoke pH measurement. Whole smoke measurement in an aqueous solution with no Cambridge pad and no cold trap but good TPM recovery. Smoke pH value will reflects contribution of both vapor-phase and particulate-phase smoke. Initial pH measurements range between 4.5 and 5.5.
Fields
- Hypothesis
- Design changes over timeChanges in cigarette design over the past half century.
- FTC machine testing and ratingsDesign changes to achieve altered FTC smoke machine tar and nicotine ratings, with or without measured changes in human intake.
- Nicotine transport, transfer, and uptakeDesign changes which alter nicotine delivery or effect how the product causes and maintains dependence, including transfer of nicotine from tobacco to smoke, and uptake into the body.
- Free Nicotine
- Keyword
- Smoke pHAcidity/ baseness, scale from 0-14, 7 neutral
- Root technology (Ammonia technology)
- Smoke Constituent
- Total particulate matter
- Prototype
- B2B
- L2F
- Technology/Method
- Cambridge
- FTC
- Subject
- Test/Smoke Machine (Testing)
- Smoke Nicotine (Measures)
- Smoke pH (Measures)
- Tar (Measures)
- Brand
- Barclay
- Carlton (ATC)
- GPC
- Kool (BW (1933-2003)/RJR (2003-present))First Menthol cigarette line, released in 1933. Premium priced brand.
- Raleigh (BW)
- Tareyton (ATC)
- Viceroy (bw)
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We want the smoke pH measured:
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No Cambridge pad.
Measured in an aqueous solution.
The smoke pH value reflects the contribution of both vapor-
phase smoke and particulate-phase smoke.
No cold trap but good TPM recovery.
Simple and reproducible.
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SHALL WE USE ANY COLD TRAP?
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MEASUREMENT OF SMOKE pH
USING A SERIES OF TWO WATER BUBBLE TRAPS
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Trap 1
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Cambridge filter
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Figure 1
Set Up for Smoke Trapping
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HOW MUCH WATER SHOULD BE USED?
42 mg/cig, for Kentucky 1R4F reference cigarette
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Smoke 10 cig. = 0.0095 mole x 22.4 Liter/mole = 0.212 Liter
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The solubility of CO2 in water is 0.759 L/L water at 25 °C, 760 mm
Therefore, 0.212 Liter CO2/2x150mLx10"~ = 0.707
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(A) FTC STANDARD
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(B) PUFF PROFILE, SMOKED WITH TWO WATER TRAPS
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CONTIDENTIAL
PUFF PROFILE
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Table 1
Reproducibility Study of Smoke pH for VICEROY KS'
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1 18.1 0.94 5.2 4.92
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2.50
13.6
3 1.07 5.9
4 1.74 9.6
5 3.03 16.7 -
6 0.49 2.7
Average 1.63 8.9
4.95
4.93
4.91
5.14
' Ten cigarettes were smoked.
TPM loss is measured from the the weight differences of the Cambridge filter pad
placed behind the traps before and after 10 cigarettes were smoked.
TPM loss (%) was calculated from the TPM loss amount divided by the FTC TPM.
CONFIDENTIAL
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Table 2
pH Values for Several Commercial or Expenmental Brands of Filtered Cigarettes
Carlton KS
1.3
Tareyton
Kool Ultra KS
1.83
1.02
1.50
1.24
3.61
0.91
78
8.2
6.8
4.88
4.98
4.47
4.80
8.2
Kool Milds 100'S 13.2 2.65 20.1 4.91
2.05 15.5 4.72-,/
GPC Lts KS 11.1 0.91 8.2 4.93
0.91 8.2 4.80
GPC FF KS 19.2 1.22 6.3 4.76
0.53 2.8 4.84
Viceroy Lights 100's 14.4 3.73 25.9 5.12
1.20 8.3 4.93
Raleigh Filter KS 19.2 1.18 6.1 5.02
1.66 8.6 4.77-,/
B2B 0.74 5.43
0.28 5.38
L2F 1.89 4.45
Carlton KS Menthol 1.3 1.20 92 4.96
2.60
Barklay KS
5.14
Ten cigarettes were smoked.
2 TPM loss is measured from the the weight differences of the Cambridge filter pad
placed behind the traps before and after 10 cigarettes were smoked.
3 TPM loss (%) was calculated from the TPM loss amount divided by the FTC TPM.
CONFIDENTIAL
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1)
2)
3)
4)
Smoke pH Experimental Design
By delivery
• Non-ROOT Technology:
GPC menthol, BW-2194 (CG no., Tar)
GPC Menthol FF KS (CG-00710, 6.0)
GPC Menthol LTS KS (CG-00630, 10.0)
GPC ULT LTS Menthol KS (CG-00900, 5.5)
• ROOT Technology: GPC non-menthol, BW-2172 (CG no., Tar)
GPC Plains KS (CG-00300, 21.0)
GPC FF KS (CG-037i0, 16.0)
GPC LTS KS (CG-03940, 10.0)
GPC ULT LTS KS (CG-00650, 6.0)
By Blend, not including those tested in 1.
• BW-2121, 2149, 2162, 2165, 2171, 2174, 2188, 2190, 2191, 2214, 2215,
2218, 2219, 2220.
• The Brand style with the highest % of BW domestic sales volume for each
blend will be tested.
Straight grade cigarettes
• Burley, Flue Cured, Oriental
Reference cigarette Kentucky 1RSF
Total number of samples is 25.
Tentative Project Schedule
Week of Project Tasks
[lanuary 13 Complete menthod development
Jartuary 20 Train technicians
Obtain samples
Prepare samples
January 27 to February 24 Run samples (one per day)
March 3
Data analysis
Report generation
CONFIDENTIAL 566560241
