Standard emission sample capable of being used for evaluating environmental chamber recovery rate and evaluation method of standard emission sample

Abstract

The invention discloses a standard emission sample capable of being used for evaluating the environmental chamber recovery rate and an evaluation method of the standard emission sample, relates to thetechnical field of environmental detection and aims at ensuring that an environmental chamber with the recovery rate reaching the standard is selected to finish a test in the process of testing the release quantity of pollutants of a product and ensuring the accuracy of a test result. The standard emission sample capable of being used for evaluating the environmental chamber recovery rate comprises an emission vessel used for containing a target liquid; a communicating pipe is inserted through an upper end hole of the emission vessel, and the lower end hole of the communicating pipe is inserted beneath the liquid level of the target liquid to form a communicating region; the upper end hole of the emission vessel is provided with an emission vessel cover; the emission vessel cover is provided with a through hole; the communicating pipe penetrates through the through hole to enable the interior of the emission vessel to be communicated with the exterior of the emission vessel; and the through hole is provided with a sealing bolt to be used for fixing a depth of the communicating pipe being inserted into the emission vessel and a gap between the sealed communicating pipe and the through hole. The standard emission sample is mainly used for performing evaluation on the recovery rate of the environmental chamber.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a standard distribution sample and an evaluation method that can be used to evaluate the recovery rate of an environmental chamber. Background technique [0002] In recent years, with the gradual enhancement of people's awareness of environmental protection, people tend to pay more and more attention to the impact of pollutants (such as volatile organic compounds such as toluene) released by materials such as furniture, textile products, and automotive interior products involved in living and living environments. The influence of the environmental quality in the activity space, in order to avoid the harm caused by the poor environmental quality to human health. [0003] At present, various related fields are also actively developing the pollutant release control standard system based on the dynamic environmental chamber, so as to use the environmental chamber to t...

AI Technical Summary

Problems solved by technology

However, due to the lack of relevant standard emission substances in the market, it has been difficult to achieve a unified evaluation of the recovery rate of pollutants in the environmental chamber

Therefore, in the process of testing the pollutant release of products, it is easy to cause low pollutant release test results due to the low recovery rate of the environmental chamber, which greatly reduces the accuracy of the pollutant release of products tested by the environmental chamber.

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