Method for testing tar of two types of treated cigarettes

Abstract

The invention relates to a method for testing tar delivery of two types of treated cigarettes. The method comprises the steps of design of a smoking scheme of smoking on odd and even channels of a smoking machine by times, cigarette smoking and gas chromatography and significance test and repeat of the smoking scheme. The method has the following beneficial effects: during every smoking, the smoking channel numbers of the two types of treated cigarettes are the same and the smoking frequency shows time block, namely, the time block is balanced, thus getting rid of the impacts of the time block factor; during twice smoking, each channel smokes the two types of treated cigarettes, namely, the channel block is balanced, and variation caused by difference of the channels will affect each treated cigarette as well, thus getting rid of the impacts of the channel block factor; and the testing results are more reasonable and accurate.

Description

technical field [0001] The invention relates to a method for testing cigarette tar, in particular to a method for testing the tar by smoking two kinds of processed cigarettes with a multi-channel smoking machine. Background technique [0002] When a cigarette is burned, it will produce smoke (when smoking, the aerosol drawn into the mouth through the filter is the smoke), and the smoke of the cigarette is composed of two parts: the gas phase substance and the particle phase substance (also often referred to as the total particle phase substance) Among them, the part of the flue gas that can pass through the Cambridge filter (a glass fiber filter) at room temperature is called the gas phase substance; the part of the flue gas that is intercepted is called the particle phase substance, which contains moisture, smoke Alkali and tar. Tar is the total particle phase after deducting moisture and nicotine. [0003] Cigarette tar, as a specific term, refers to a variety of complex...

AI Technical Summary

Problems solved by technology

[0006] The factors affecting the test of cigarette tar can be divided into two blocks: one is the tunnel block. A large number of experiments have shown that under specified conditions (although it is a specified condition, there will be a certain change within the specified range) multiple tunnels simultaneously carry out the same test. In the cigarette tar test, the total particulate matter, nicotine, moisture and final tar amount measured by different channels are quite different, which is mainly due to the suction capacity of each suction channel of the smoking machine, the environment The air velocity and some other factors are not exactly the same, resulting in incomplete suction; the second is the time block, the total particulate matter, nicotine, moisture and the final volume measured at different times in the same channel under specified conditions. There is a big difference in the amount of tar, which is mainly due to the time-varying atmospheric temperature, atmospheric humidity, air velocity and other factors that change with time, which have a certain impact on the combustion of cigarettes, thus affecting the test of cigarette tar

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