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The effects of whole smoke as well as the gas phase for each individual puff can be analysed using a special smoking regime and sampling unit. The test sequence is as follows: The individual first and subsequent 7 puffs are guided each to a total of 8 individual sampling points. Here impingers or other analysis tools may me placed. The unique valve and purging system allows for the following regime: After that there is the choice to purge the system.
For this purpose the valve towards the cigarette holders is closed and the valve towards the purging gas e. Synthetic Air is opened. The pump is performing a defined number of purging puffs.
Thereafter the valve for the purging gas is closed and the valve towards the smoke ports opened. Then purging takes place in the same way than above. Generation of smoke with the shortest distance to the analytical instrument For the success of an experiment with mainstream tobacco smoke it is important that the distance between the smoke generation cigarette holders and the analytical instrument is as short as possible in order to avoid aging and to guarantee a smoke composition matching the real-life situation.
