Sampler and determination method for residual quantity of benzene, methylbenzene and xylene in furniture paint films

Abstract

The invention discloses a sampler and determination method for residual quantities of benzene, methylbenzene and dimethylbenzene in furniture paint films. The sampler comprises a sampling disc, four vacuum suckers and a pressurizing mechanism; the sampling disc is provided with an air inlet, an air outlet and a sampling port, the vacuum suckers are uniformly distributed around the sampling disc, the sampling disc is provided with a heater, a temperature sensor and an air pressure gauge which are separated from one another, and the air inlet, the air outlet and the sampling port are respectively provided with electromagnetic valves. In addition, the determination method specifically comprises the following steps: fixing the sampler with a to-be-detected surface of to-be-detected furniture debugged to a stable state, and vacuumizing sealed space formed by the sampler and the to-be-detected surface; introducing clean gas and then raising the temperature to enable the pressure in the sealed space to be one atmospheric pressure and enable the environment temperature to be kept at 35 +/-1 DEG C for one hour; extracting air in the sampler, and detecting the extracted air by using a gas chromatograph; and calculating the residual quantities of benzene, toluene and dimethylbenzene in the unit area paint film of the furniture sample according to the detection result.

Description

technical field [0001] The invention relates to a sampler and a measuring method for residual amounts of benzene, toluene and xylene in furniture paint films. Background technique [0002] Hazards of benzene and benzene series: 1. Chronic benzene poisoning by benzene is mainly due to the irritating effect of benzene on the skin, eyes and upper respiratory tract. Frequent exposure to benzene can cause the skin to become dry and desquamated due to degreasing, and some people have allergic eczema. Long-term inhalation of benzene can lead to aplastic anemia. In the early stage, there was scurvy-like hemorrhage in the gums and nasal mucosa, and symptoms of neurasthenia, manifested as dizziness, insomnia, fatigue, memory loss, decreased thinking and judgment, and other symptoms. Later, leukopenia and thrombocytopenia will occur, which can seriously hinder the hematopoietic ability of the bone marrow and lead to aplastic anemia. If the hematopoietic function is completely destro...

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Problems solved by technology

[0004] Although the Chinese invention application with the publication number CN109060968A "A quick detection method and detection device for organic volatiles in panel furniture" discloses a detection method and detection device for furniture paint film, this application for invention does not take into account that the human body will contact the furniture. Heat up the paint film of furniture and accelerate the volatilization of organic compounds such as benzene, which will lead to deviations between the test results and the actual situation, and needs to be improved

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