Author: Wanghui Home Inspection Excessive formaldehyde in new house decoration has become a topic of high social concern. In recent years, there have been more and more incidents and diseases caused by formaldehyde pollution. Therefore, everyone must know more about the correct u

2024/05/1417:19:33 home 1125

Author: Wanghui Home Inspection

New house decoration Formaldehyde Exceeding the standard has become a topic of high social concern. In recent years, there have been more and more incidents and diseases caused by formaldehyde pollution, so everyone must have a correct understanding of formaldehyde. learn.

What is the connection between indoor closing time and formaldehyde concentration release?

Scientifically recommends that doors and windows need to be closed for 12 hours before indoor formaldehyde testing.

First, the closed time is more in line with people's daily living conditions. Second, if it is closed for less than 12 hours or for an extremely long time, the formaldehyde concentration may not keep rising. Generally speaking, there is no convection state between indoors and outdoors, and formaldehyde will be continuously released indoors. When the window is closed for a short time, formaldehyde release will not be high, and the accuracy of formaldehyde detection will be low. Secondly, when the amount of indoor formaldehyde released reaches saturation, it will gradually slow down. Therefore, some people think that the longer the better, it is closed for 24 hours. This is theoretically wrong.

Formaldehyde testing agency selection:

1. In order to ensure the fairness and accuracy of the testing data, it is necessary to select a third-party formaldehyde testing agency with CMA qualifications to issue an inspection report with reference significance and an official seal.

2. The laboratory's precise testing instruments and chemical testing methods are of high rigor, and laboratory and its testing personnel may have an interest in the testing or calibration activities it engages in and the data and results it issues.

Regular formaldehyde testing fees:

Currently, professional formaldehyde testing institutions charge based on points, generally between 100 yuan and 200 yuan/point (100 yuan in Taiyuan). Taking a family as an example, an independent space is generally used as a point. Targeted detection will be more accurate, and it will be easier to remove aldehyde later.

What is the best time to remove formaldehyde? Is it better to remove formaldehyde in summer?

Formaldehyde testing in some households may not exceed the standard in winter, but exceeds the standard in summer. The main reason is that the volatilization of formaldehyde is closely related to temperature, so summer is the season of high incidence of formaldehyde pollution. When the temperature is higher than 19 degrees Celsius, the formaldehyde concentration will increase by 0.4 times for every degree of increase.

Since there are many cases of excessive formaldehyde in summer, it is more appropriate to detect and control high-temperature formaldehyde in summer.

Nethui Home Inspection is a third-party professional testing and management organization. It serves new houses, schools, offices, nursing homes, etc. It introduces advanced laboratory instruments and masters many technologies such as indoor environmental pollution treatment and purification. It is reliable and environmentally friendly, and refuses to pollution, consultation and appointment, 24-hour door-to-door service, and test report.

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