GB/T 19609-2004 Cigarettes - Determination of total particulate matter and tar using a conventional analytical smoking machine
Some standard content:
IC8 65.160
National Standard of the People's Republic of China
GB/T19609-2004
CigarelleDeterminalion of total and nicotine-free dry particulate matlerusingaroulineanalyticalsmoking machine(1S013 including 7:2000,MO3
2004-12-14 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of the People's Republic of China
2005-03-01 Implementation
t:B/T 19609—2004
This standard is modified and adopted 15(4387:2000 version) for the determination of the total initial performance of smoking cessation machines using a smoking machine.
This standard was redrafted according to 14337:2000 in accordance with my country's national conditions. The dust volume of 14337:2000 cabinet is higher than that of 14337:2000. The relevant technical specifications are only used for the points involved in the technical specifications. A list of these technical differences and their origins is given for reference.
For the convenience of use, the following amendments have been made to 14337:2000: - Except for the foreword of 14337:2000:
Except for 14337:2000 references:
Add Appendix B\Comparison between this standard and 14337:2000\This standard is based on the actual situation From the implementation of H, Y/291SS6 rolling banknotes with specifications are divided into expansion and expansion using a smoking machine to scald the particulate matter and hot oil to stop this standard Y/291SS6 medicine Feng must not be: the root arch test requirements, determine the county Lizhou branch to carry out daily smoking or other local standard Yao sent the wood standard to record A. Appendix H is the rat material attached: This standard is the National Tobacco Apple Special Energy Bureau:
This standard is marked by the Guiyang valve draft standard Puhua Fine Technology Committee (TC144: mouth, this standard is drafted by the National Tobacco Quality Supervision and Inspection Center, the main drafters are Fan, Chen Fugen, Zhang Shi, Fu Naling, Liu Dianmin 1
1 Fan
Cigarettes are used for routine analysis and smoking machines to determine
total particulate matter and tar
CB/T 19609—7004
This standard specifies the method for determining the total particle size and point measurement of flue gas generated and collected by a flue gas analyzer and the flue gas used in this standard and the flue gas analyzer.
2 Normative references
The clauses in the following documents become the clauses of this standard through the application of this standard. For all referenced documents of the current date, their subsequent amendments (excluding the contents of the amendments) or static versions are not applicable This standard is valid for the period of 2005 to 2010. For any undated reference documents, the latest version shall apply to this standard. GT1/T5606.1 Part: Sampling of tobacco products and conditioning of atmospheric environments (11/T-16117200/T134-7, 1 to 84021-999 ITT:
GB/T :5150
Definition and standard conditions for conventional analytical instruments (GB/J250-2004.IS) 3308:200C, M0) Volume Determination of the properties of materials Part I: Partial absorption resistance YCiT 26.S
Y Smoke emission spectrophotometric method for total smoke content YG-%.18008 Volume Determination of smoke content in total particle size Gas chromatography (Y/156-2001.e150-3315, 2000) YC/T156
Determination of water content in total materials Gas chromatography (YC/T1572001, id11S) 102-1: YCT 15?
YeT165
fine grass water distribution complete Caloric micro-rest method YC/T65--303, S)6155-11997.M0Y/T1 special report grass and the application of the change of the old period 3 terms and definitions
the following technical standards apply, 3. 1
total controlled phase (or TP) toalparticulatemutirr capture change of the mainstream smoke in the smoke collector. Fulk meter. 3. 2
Dry particulate matter (or DPM) is the total particulate matter without moisture, expressed in grams. 3.3
Fat-free PM (FDPM) is the total particulate matter without smoke and moisture, expressed in grams. 3.4
Smoking process
The smoking machine must be rotated from the blood point to the last puff. 3.5
Smoking experiment
According to the requirements of the specified smoke composition, a group of cigarette samples are produced by multiple puffs of smoke. 3.7
test sample
sample prepared for laboratory inspection or testing3.8
test sample
sample prepared by laboratory and collected from it3.9
test sample
selected from the batch, selected before the test3.10
test sample
moniturts1pler
tobacco obtained from a batch of cigarettes produced under controlled conditions of production. It is widely used for its good physical and chemical properties, 4 principles
tobacco extraction, adjustment. The total amount of nicotine was collected by using a glass fiber filter and the quality of the smoke was analyzed by YC/T[8S]. The total amount of nicotine was weighed and the moisture content was determined by the gas chromatography-mass spectrometry. The total amount of nicotine was determined by YC/T30 and the moisture content was determined by YC/TS. The smoke or water fraction obtained in this way can also be used. The following table should be used to illustrate the experimental instruments and the following items: 5.1 The normal H-sucking machine. Meet the requirements of ([3/16453. 5.2 Soap original vapor meter. 35ml. Special quiet to _0.2ml. Show small night 20.1ml. 5.3 Determination of the duration of the suction force and the short rate of the hypothetical case, 5.2 Extension, measurement of domestic selection to .1
The weighing of the filter holder may be subject to the world's ten excellent virtual virtues. 5.5 The clean box is maintained (s/「611 The current conditions are as follows: 5.6 Length measurement position. Accurate to 0.6mm
5.7 This is to meet the requirements of Y23. 5.8, 5.9, hand, quality or slip in the sleeve 5 Sampling 6TC6.1 Area test room sample total phase determination 7.1 Preparation for smoking roll burning Randomly collect as many single as possible from the actual cold sample, except for those with obvious energy resources, the total number of collected rounds should be as few as possible for special smoking effect, then take the majority of the test objects 7.2 Marking of cigarette length 7.2.1 Cigarette length Marking the length of cigarette butts to be one of the following lengths: 23 mn:
-- Length of connecting paper
7.2.2 Measurement of incomplete length
GB/T 19609--2004
7.2.1 The wavelength refers to the total value of 10 pieces of card. Determine the rate of several kinds of rate, 5m2 average value peak medicine 0mm, sometimes need to be more than 1 text also can be long, industry need not be long, he can be six to the mouth of the water sea,
7.2. 3 Measurement of connecting length
7.2. 1 The connecting length refers to the average length of 10 pieces of card, Xie Ding ≤3. 3mm, average value correction medicine case 0,5 mm timing is used to determine the use of the child's parts, can not be installed according to the large || tt || 7.2.4 adjust the length of the front smoke band || tt || mark the end of the impact period to push the length of the section, the soft head of the month to identify the line, be sure to learn, be careful not to damage the branch, if the branch is broken, scratched or defective should be discarded. And the machine F.It is necessary to set up a cigarette beside the length. If the length is not required, the length does not need to be marked. 7.3 The selection of cigarettes is based on the analysis of our requirements. The flowers and: the continent branch is purchased in quantity or the dream is selected. The card must be selected in the state. The whole principle of the whole school must be adjusted. The exhibition is 18, the length is 13 days, and the certificate must be kept before the adjustment? More than one person, the virtual storage of the original or too small person can be accepted in the dense group of the average. The experimental inspection and test of the puffing experiment shall comply with the provisions of GT16447. The puffing position shall be in the box without sweeping the neighboring atmosphere, or the two shall be placed in different atmospheric conditions. The material shall be put into the container (good size and close to the sample) and placed in the return container. 7.5 The test requirements before smoking may be as follows: Adjust the injection nozzle to an appropriate amount of 50 cigarettes and the smooth resistance of the cigarette volume in grams according to YT5. 7.6 The total resistance of smoking and particulate matter shall be determined according to YT5. 7.6.1 Puffing ratio: There is no need to compare the suction plan with the suction ratio between each card and the suction volume. The non-standard test requirements are reported. No, you can choose the appropriate suction plan for the suction rate record
7.6.2 Preparation of the smoke collector
In the replacement, the operator should log in (!) to avoid the error of the instruction. Put the selected piece or piece of the filter holder that has been tested in the gas cycle to the center of 12 and twist the machine surface into the pool of the filter holder, check the correct installation, and make the gas collector have a hole! (The company can install it (end), the core belt is built to replace the piece, and then insert it into the high ring. See B: T16450), such as the quality of the gas collector, accurately kill 011. For the gas collector, the absorption of the agent should be determined according to the preparation of the single-phase play GB/T 19609- -2CC4
The other traps are used for water evacuation. For point-line smoking machines, there should be two blanks for each wheel axis suction, and two blanks for each turntable. The number of blanks should be adjusted according to the specified usage. 1.6.3 Preparation of smoking machines
7.6.3.1 General
Remove the protective film on the smoking machine: Turn on the machine, set the dynamic H load and make sure that the preheating is over, and then check the continuous suction time and non-overlap frequency of the bucket. It should meet the requirements of the standard conditions. If the machine temperature changes greatly during the heavy suction, check and add tolerance: 7.6.3.2 Determination of suction maintenance time
The timer should be set quickly, and the smoke machine should start and end the suction limit action. The timer value should be checked to 1% of the time difference between the puff duration. The timer is connected to the power circuit of the smoking machine: Due to the time limit of the smoking machine, it is impossible to directly measure the method without simulation. 7.6.3.3 Puff rate measurement bZxz.net
Measure the time between two consecutive puffs, set the oil suction rate, and the timing is 0, 1, and record it on the trigger circuit of the smoking machine. || tt||7.6.3.4 Suction volume measurement
Use the old flowmeter membrane to determine the batch suction volume, and then check whether there is leakage: the separation rate at the 3%L scale of the flowmeter should be: 1ka-5. The required pressure drop should be installed on the suction channel. Before the suction volume measurement, the inner wall of the flowmeter should be stimulated twice with it, and then wait for 303~45s to allow the layer of liquid inside to slightly drop. The membrane should be moved using the "%" table. Surface language: dosage rate reading, 1pol effect meets the requirements, purchase should be based on the situation according to the degree of thin
insert the smoke with the suction machine, and connect the plastic plug-in pressure drop device with the smoke extinguisher to the electric single meter, use it to stimulate the original end of the wet soap flowmeter scale inner wall main line, the net emperor membrane flowmeter and the first hole standard, and adjust the suction capacity to 330mT. ± c.3mL: the weight end is used to measure the remaining channel. The electric multiplexing determines the direct single suction capacity to meet the requirements. If the half-weight is exceeded once, it should be able to continue to measure until it meets the requirements, but the company should replace the film before the old suction quality, and check the suction capacity. Measure the external environment of the suction machine and the changes, record the popularity of the firework system 7.6.2 || tt || Put the smoke volume of the kidney lamp into the smoker, so that the smoke is still in contact with the lamp, and avoid deformation of the tip or false tip. If there is obvious damage or insertion, it will be replaced by a good spare tip. Ensure that the smoke is correct and the position of the tip is appropriate. When the whole cigarette reaches the mark on the cigarette butt, the puff stop device is activated: if the puff is stopped by the force method, the line should be exactly connected to the cigarette butt mark without changing the supply,
reset the puff counter, start from the first number, and light a new cigarette. When it reaches the mark, take the puff off the cigarette and record the number of puffs: the puff is over, and keep the cigarette in the original position for at least 31 seconds to prevent the gas from being deposited in the gas trap or in the gas collector. Avoid artificially adding too much smoke to prevent the cigarette from burning and letting the cigarette die on the plate. Immediately sign the girl, then the girl gently ", the self-oxygen will be more of the cigarette after the constant number of inhalation, according to? Determination of total pull #:
/. Determination of total particle phase
inhalation machine worker a gas digging case (half filled). If necessary, remove the cigarette holder. 1Tx (" is the name of the product provided by the second company. This letter is for the purpose of coordinating the use of the product and does not represent the use of the product. If other products are used in conjunction with the network, then if these equivalent products are used, the front hole of the smoke belt device will be installed in the market (,) cover GB/1'19609-2004
when the smoke is collected, the blood will be raised to the steel surface of the wine, so as to reduce the size of the smoke holder and wait until the sensor is removed. The oil should be raised when the mouth is lifted, | |tt||After the separation, the quality of the smoke collector should be accurately checked to see if it is caused by the yellow filter acid and the yellow filter is discarded. The diameter of the 1%mm or the first fiber sheet can carry 155 total particles. The straight line of the 9th fiber sheet can carry 69m total particles. If the total particle material and the load weight are too heavy, the number of suction states should be reduced. At the same time, the calculation should be rounded off. 7.8 Calculation of total particle matter
The mass of total particle matter per channel is expressed in grams of the volume, and the recovery method is npa.mm
The energy quality of the gas collector before suction, the position is grams (the mass of the dirty smoke collection, the position is grams
, and the energy efficiency of each suction case.
7.9 Treatment of total particle matter| |tt||7.3.1 Steps to take the rate
Select the total calibration object and press the two holders as the nearly flat one, lower the flue gas holder sealing device (hand-held device), open the flue gas, use a pot to take out the total particle matter twice. Carefully do the wide and hand-lock the filter edge and collect the new chain into a negative bottle of the case <44mm. When the diameter of the filter disc is maximum, use an 11l. triangular bottle, and the 92mm diameter filter disc is recorded in a wire bottle. Use a quarter of the piece, wipe the filter with lemon, and transfer it to a corner bottle. Transfer the separation agent (containing isopropyl alcohol with a specified moisture content, 4mI diameter full piece 20mT92mm straight piece Cml.) 1 triangular bottle of YGT1 and Y/T15
that is, the upper version of the benefit, in the electric music device The upper part is lightly dropped at least to ensure that the film does not report the rate, and the detection time can be adjusted to ensure that the total particle size and the alkali content are taken from the room where the moisture is determined by the same method. 7.9.2 Determination of moisture
According to YC/T: 37, the content of the liquid in the bottle is determined. The mass of each light object under the collector is calculated in grams. Report (2) Calculation, RXm·W
The mass of the total particle size, the grass position is the must (mouth): the content of the total particle size, the single fire point (mg: 7.9.3 Determination of smoke burst
According to YC/T 156, the smoke burst of the liquid in the standard is calculated in grams per smoke:
In the formula,
The composition of a particle, the single pull is the actual light! ! w\—the content of total particulate matter, mg (m2)
GD/T196C9—2034
8 Test report
The test report shall state the method used and the results obtained. It shall also include the conditions for selecting the final product and the environmental conditions that may affect the results: the test report is the only data on the sample after the test. Generally, it shall contain the following contents of 8.1--84: B.1. The unique information of cigarettes shall include: manufacturer name, product name; gas standard, sample format, sampling information, sample purchase location, sample vertical adjustment. Test description: According to this standard: Test port: Test machine number: Test range: 8.4 Test results: The expression of experimental results depends on the test conditions and the actual test results. The data shall be calculated and expressed in the specified range. The structure should include: the quality of the cigarette, the average length of the cigarette, the accuracy of which is within 0.1mm; the number of suction mouths, the total particle size, the moisture content of the total particle size, the accuracy of which is within 3mg/1:1; the heat release rate, the accuracy of the single-shot gas to 0.1: the oil quantity, the type of vehicle, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, the fuel consumption, The loading capacity of the gas collector is: the number of cigarettes purchased by each person at a certain time: the number of puffs should be reduced for high-volume condensates; the range of suction adjustment is always with a certain variability: the distribution of cigarettes in the smoking experiment should be able to reduce the influence of uncontrolled or poorly controlled factors (machine damage and human factors, generally speaking, the higher the test volume, the better.
The test paper contains a variety of comprehensive experiments, especially: the required indicators:
The smoking process needs to be comprehensive The time of creation depends on the small amount of time! There is no machine hand teaching quantity, according to the original model (see 7, 1) to the reason set, the exact value is determined by the parameters that characterize this system. The general formula (A.1) is related to the parameters,
fx-sX\
where.
Number of cards to be analyzed (teacher):
Number of times of shooting and sucking:
Each person has the effect of music,
The following example is used to illustrate the above points, the negative 1 of the seat day: the full volume of the car entering the ground Single suction machine on the comparison of flue gas feeding environment can collect your risk of false, (A.-) || tt || 2: a brand of single-pass No. Caizhou machine on the comparison, flue gas can be collected free of 3 condensation h || tt || example: two brands of Anzhen in the four-pass suction machine comparison, gas pure collection can be often five resources against the necessary reading, the old cigarette condensate production is high! For example, still ten mg), the suction fine can be reduced to three. Example 1: 2: two brands of volume in the 23-pass range suction machine comparison, flue gas new device can be - women collection of ordinary The condensate of the smoke was collected by the smoker to analyze the moisture content and viscosity. Example 1: Comparison of the treatment efficiency of two brands of smokers on a single-pass smoking machine. Test sample accuracy. Number of each channel. Number of progress. Number of smoking experiments. Total number of tested cigarettes. $-16(:,2---.16) 2 -1=16 - [X=
Each brand pushes the suction pile to support the width of the support, the raw suction is not dry, the oil is close to the edge of the treatment, the light is stored, the suction test is carried out according to Table A1, 2, and the book is repeated four times. GB/T19609-2DC4
Suction will
Table A!
Example 2: Three brands of rolls are compared on a single-channel smoking machine. The number of test samples is
The number of channel cigarettes
The source of the channel
The channel effect
The number of European experimental effects
The total number of cigarettes tested
2--3(A,BC)
The cigarettes for each treatment are arranged in the smoking experiment, for example, according to the following matrix: H
Smoking experiment
Treatment and
Example 3: Two cigarettes of different numbers are compared on a four-channel smoking machine. The number of test cigarettes
The number of cigarettes per channel
The number of smoking experiments
Total number of test cigarettes
4tt.b.crd:
$ -5(1.2...3)
x488x4x3
According to the matrix, the two cigarettes are not in the smoking machine. This matrix is reduced to four kinds of external cigarettes. But! It is necessary to regard the two treated cigarettes as the frequency library of the convertible two-way smoking experiment. A
Smoking experiment
CB/T19609—2004
In each smoking experiment, the treated cigarettes are placed in the test channel, for example, in the sixth oil smoking experiment: cigarette A is placed in channel B and channel C;
The cigarettes in each treatment are smoked four times in four channels at the same time. Example 4: Comparison of treatment effects of 20 brands of voucher cigarettes on 20-pass smoking machines. Number of consecutive cigarettes in the test. Number of cigarettes in each pass. Channel micro-smoke. Test effect. Total test cigarettes. Total limit.--2.AH, -..., T?+=20(ab*.1)5-20(1.3,...20)20x100×20. GB/T19609—2004. All cigarettes contain treated cigarettes. The theory of each treatment is: one puff per pass. Example 5. Five brands of Yue cigarettes are compared in 2-channel smoking machine. Number of treatments
Test samples
Number of cigarettes per channel
Channel efficiency
Test results
Total number of cigarettes in the test period
—20ta.h,--....t
11.2,......0)
5x2cc:-.3x0x5
Use the following matrix to reduce the five types of treatments to the old state in each channel of the smoking machine: R
Re-smoke experiment
In the second smoking test, Dou Chong must +! Book raised the cigarette in a suitable channel: For example, in the seventh smoking suppression experiment-)
2: A brand of single-pass inhaler comparison, flue gas can be collected in total 3 condensation h
Example: Two brands of Anzhen in four-pass inhaler comparison, gas pure collection can be often five resources against the reading of the old cigarette condensation is high! For example, still ten mg), the suction fine can be reduced to three. Example 1: 2: Two brands of volume in 23-pass inhaler comparison, flue gas new device can be - women set up a common condensation energy. Cost analysis material no business.
's five-channel volume state machine is relatively light, the world's gas auction workers collected the condensate of the smoke, studied the moisture viscosity quotient,
Example 1: Two brands of volume handles are compared in a single-pass smoking machine
Test sample accuracy
Each channel performance data
Approximate number
Suction experiment consultation number
Total number of tests
$-16(:,2---.16)
2 -1=16 - [X=
Each brand of volume handles the width of the support, the raw suction process is reduced to a certain length, the oil is close to the edge of the treatment, the suction test is carried out according to Table A1, 2, and the schedule is repeated four times. GB/T19609—2DC4
Suction will
Table A!
Example 2: Comparison of three brands of cigarettes on a single-channel smoking machine Number of test sample cigarettes
Cigarettes in each channel
Channel effect
Single experiment effect number
Total number of test cigarettes
2--3(A,BC)
Each cigarette that has been treated in one way is arranged in the smoking experiment, for example, according to the following matrix: H
Smoking experiment
Treatment and
Example 3: Comparison of two brands of cigarettes on a four-channel smoking machine Number of test sample cigarettes
Number of cigarettes in each channel
Smoking experiment effect number
Total number of test cigarettes
4tt.b.crd:
$ -5(1.2...3)
x488x4x3
Press the matrix of the certificate and other two sections to raise the cigarette in the non-smoking machine. This matrix is reduced to three for four kinds of external cigarettes. But! It is necessary to treat it as a frequency library of two-way conversion of two-way processing cigarettes. A
Smoking experiment
CB/T19609—2004
In each smoking experiment, the treated cigarettes are placed in the test channel, for example, in the sixth oil smoking experiment: cigarette A, channel B and channel B;
Each cigarette is smoked four times in four channels. Example 4: Comparison of treatment effects of 20 brands of voucher cigarettes on 20-pass smoking machines. Number of consecutive cigarettes in the test. Number of cigarettes in each pass. Channel micro-smoke. Test effect. Total test cigarettes. Total limit.--2.AH, -..., T?+=20(ab*.1)5-20(1.3,...20)20x100×20. GB/T19609—2004. All cigarettes contain treated cigarettes. The theory of each treatment is: one puff per pass. Example 5. Five brands of Yue cigarettes are compared in 2-channel smoking machine. Number of treatments
Test samples
Number of cigarettes per channel
Channel efficiency
Test results
Total number of cigarettes in the test period
—20ta.h,--....t
11.2,......0)
5x2cc:-.3x0x5
Use the following matrix to reduce the five types of treatments to the old state in each channel of the smoking machine: R
Re-smoke experiment
In the second smoking test, Dou Chong must +! Book raised the cigarette in a suitable channel: For example, in the seventh smoking suppression experiment-)
2: A brand of single-pass inhaler comparison, flue gas can be collected in total 3 condensation h
Example: Two brands of Anzhen in four-pass inhaler comparison, gas pure collection can be often five resources against the reading of the old cigarette condensation is high! For example, still ten mg), the suction fine can be reduced to three. Example 1: 2: Two brands of volume in 23-pass inhaler comparison, flue gas new device can be - women set up a common condensation energy. Cost analysis material no business.
's five-channel volume state machine is relatively light, the world's gas auction workers collected the condensate of the smoke, studied the moisture viscosity quotient,
Example 1: Two brands of volume handles are compared in a single-pass smoking machine
Test sample accuracy
Each channel performance data
Approximate number
Suction experiment consultation number
Total number of tests
$-16(:,2---.16)
2 -1=16 - [X=
Each brand of volume handles the width of the support, the raw suction process is reduced to a certain length, the oil is close to the edge of the treatment, the suction test is carried out according to Table A1, 2, and the schedule is repeated four times. GB/T19609—2DC4
Suction will
Table A!
Example 2: Comparison of three brands of cigarettes on a single-channel smoking machine Number of test sample cigarettes
Cigarettes in each channel
Channel effect
Single experiment effect number
Total number of test cigarettes
2--3(A,BC)
Each cigarette that has been treated in one way is arranged in the smoking experiment, for example, according to the following matrix: H
Smoking experiment
Treatment and
Example 3: Comparison of two brands of cigarettes on a four-channel smoking machine Number of test sample cigarettes
Number of cigarettes in each channel
Smoking experiment effect number
Total number of test cigarettes
4tt.b.crd:
$ -5(1.2...3)
x488x4x3
Press the matrix of the certificate and other two sections to raise the cigarette in the non-smoking machine. This matrix is reduced to three for four kinds of external cigarettes. But! It is necessary to treat it as a frequency library of two-way conversion of two-way processing cigarettes. A
Smoking experiment
CB/T19609—2004
In each smoking experiment, the treated cigarettes are placed in the test channel, for example, in the sixth oil smoking experiment: cigarette A, channel B and channel B;
Each cigarette is smoked four times in four channels. Example 4: Comparison of treatment effects of 20 brands of voucher cigarettes on 20-pass smoking machines. Number of consecutive cigarettes in the test. Number of cigarettes in each pass. Channel micro-smoke. Test effect. Total test cigarettes. Total limit.--2.AH, -..., T?+=20(ab*.1)5-20(1.3,...20)20x100×20. GB/T19609—2004. All cigarettes contain treated cigarettes. The theory of each treatment is: one puff per pass. Example 5. Five brands of Yue cigarettes are compared in 2-channel smoking machine. Number of treatments
Test samples
Number of cigarettes per channel
Channel efficiency
Test results
Total number of cigarettes in the test period
—20ta.h,--....t
11.2,......0)
5x2cc:-.3x0x5
Use the following matrix to reduce the five types of treatments to the old state in each channel of the smoking machine: R
Re-smoke experiment
In the second smoking test, Dou Chong must +! Book raised the cigarette in a suitable channel: For example, in the seventh smoking suppression experiment
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