Method for evaluating and testing ignition tendency of cigarette

Abstract

The invention provides a method for evaluating and testing the ignition tendency of a cigarette. The method is characterized in that an ignited cigarette is put into a glass device, an air pump is started and is used for pumping out smoke gas generated by burning from the glass device, a filter is used for filtering out moisture and particulate matters in the smoke gas, the smoke gas is pumped into an oxygen analysis through a flow meter and the air pump, the real-time oxygen concentration in a cigarette burning process is analyzed, oxygen concentration values are input to a computer and are analyzed and treated, and the amount of thermal release of the cigarette is worked out by calculating the oxygen consumption after the cigarette is ignited, so that the ignition tendency of the cigarette is represented. Compared with a conventional method based on ISO12863 'Cigarette Ignition Tendency Evaluation Method Standards', the method has the advantages that the relative good theory support is supplied, the possibility that the cigarette ignites other matters can be reflected fundamentally, the testing efficiency is relatively high, and the operation is relatively simple and convenient; test results can be directly counted by high-efficiency computer software and are convenient to store and analyze; the consumption of filter paper and consumable materials in the testing process is reduced, and the testing cost is greatly saved.

Description

technical field [0001] The invention relates to a new test method for evaluating the ignition tendency of cigarettes. Background technique [0002] Major fires are often caused by lit cigarettes falling on beds or upholstered furniture. The lit cigarette heats up the furniture material and starts to smolder, which then converts to an open flame, creating a fire. In order to reduce fires, the United States first started research on the flame retardancy of cigarettes. In the 21st century, the international community has increasingly deepened research on low ignition propensity (LIP) cigarettes. In 2002, the American Society for Testing and Materials ASTM issued the method standard ASTM E2187 for determining the ignition tendency of cigarettes. In 2010, the International Organization for Standardization issued the international standard ISO 12863 based on the ASTM E2187 method. [0003] According to ISO 12863 "Cigarette Ignition Propensity Evaluation Method Standard", the pr...

AI Technical Summary

Problems solved by technology

Studies have shown that the method is cumbersome in actual testing and is easily affected by human factors; only one piece of data can be formed for every 40 cigarettes tested, and the testing efficiency is very low; Whatman No. 2 filter paper must be used, which not only creates a technical monopoly , which greatly increases the test cost, and there are certain differences between different batches of filter paper, which will also affect the test results

[0005] In summary, the ISO 12863 cigarette ignition tendency test method adopts the method of simulating the actual situation, lacks theoretical support, and has certain defects and deficiencies

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