Fiber, paint, synthetic wood and furniture used in new house decoration are all sources of formaldehyde and other harmful gases. So many owners will check whether formaldehyde exceeds the standard before they move in, so how to check whether formaldehyde exceeds the standard for newly decorated houses?
How to detect whether formaldehyde exceeds the standard
1. Judge by smelling indoor odor
The newly decorated family and office rooms or newly purchased furniture have pungent, dazzling and other irritating peculiar smell, and the peculiar smell does not disperse for a long time. Close to the wall or furniture when there is a clear smell pungent sense, so that you can basically feel the family indoor formaldehyde is excessive.
2. It can be judged according to the physical condition of oneself or family members
For example, after moving into a new home, the family's resistance becomes poor, the family feels unwell, dizzy and immune system declines, the family members' disease rate becomes higher, the eyes feel like tears, and under normal circumstances, the formaldehyde in the room exceeds the standard.
3. Observe the reaction of animals and plants
If a large number of plants wither and die after moving into the new house, if there is a pet in the house, the pet is sick, does not like to eat or even dies, which also means that the formaldehyde in the house exceeds the standard.
4. Formaldehyde self test box method
The simplest way to detect whether formaldehyde exceeds the standard is to use formaldehyde detection box, which is also very cheap and easy to operate. The detection box is similar to a pH test paper, which can be used to estimate whether formaldehyde exceeds the standard or not by color. In the actual operation, it has a certain reference function for serious over standard pollution, but it can not make objective and accurate judgment for general over standard pollution.
5. Electrochemical method formaldehyde detector
This method is portable, but the disadvantages are different quality, difficult selection, and different prices, ranging from 100 yuan to 10000 yuan. In the actual operation, if the imported equipment is used, the indoor formaldehyde content can be accurately determined.
6. Spectrophotometry - special detector for indoor air
The accuracy of this method is high, but the disadvantage is that the price and quality are different, ranging from 100 yuan to thousands of yuan; in addition, the operation process is more complex, with a certain degree of operational difficulty. In practical operation, the indoor air quality can be accurately measured by using high-quality equipment manufactured by the mechanism and operated by professional personnel.
7. Testing through professional institutions
According to the national indoor air quality standard, the environmental protection testing of professional institutions uses professional indoor air quality testing equipment to sample the indoor air, and then send it to the laboratory for testing and analysis. The results are authoritative. But professional companies are more expensive.