Device and method for testing formaldehyde and VOCs (volatile organic compounds) from furniture and decorative materials by bag method

Abstract

The invention relates to a device for testing formaldehyde and VOCs (volatile organic compounds) from furniture and decorative materials by bag method; the device mainly comprises a test bag, an air purification system, a vacuum control system and an air sampling system; a sample chamber of the device uses the test bag, a test sample is put in the test bag via a test bag opening / door and is locked and sealed via the test bag opening / door; the vacuum control system and the air purification system are communicated with the front end of the test bag; the air sampling system is communicated with the rear end of the test bag for sampling air. The device and method have the advantages of high test data accuracy, good repeatability, small error and the like, and are suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of environmental monitoring methods and detection devices, and in particular relates to a detection device and method for formaldehyde and VOC releases in furniture and decoration materials, which are suitable for evaluating the environmental quality of indoor household products. Background technique [0002] Nowadays, while the furniture and home decoration industry is booming, the problem of indoor air pollution caused by it also follows. In recent years, more and more people have begun to realize the impact of the indoor environment on health. Indoor air pollution has become the third largest pollution after soot pollution and petrochemical pollution, which is increasingly endangering human health and survival. Having a safe and healthy home environment has become a hot spot of public concern. [0003] Improper material selection is an important reason for excessive pollutants. In the furniture testing items stip...

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Problems solved by technology

[0005] However, the volume of the test chamber of the environmental test chamber method is fixed, which cannot meet the requirements of the fixed value of the volume-to-volume ratio or surface area-to-volume ratio (i.e. load ratio or load rate) of test samples with different volumes and surface areas; Environmental test chambers with a series of volumes are used to meet the detection of different test samples, which obviously not only wastes money and space, but also may not be able to meet the requirements of the test samples

Although there are related scientific research institutions that have developed volume-variable environmental test chambers, the mechanical volume-variable is not only complicated in process but also not necessarily ideal in control effect, and cannot satisfy test samples of different shapes at all.

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