formaldehyde in the new house. Everyone knows it. In fact, formaldehyde is not scary, terrible formaldehyde is excessive, and we haven't even noticed it, especially in the elderly, children or pregnant women's families. The decoration master said that many people do not pay attention to formaldehyde. If you want to live in a new home, formaldehyde detection has many door-to-door services. In order to ensure that you and your family can live in your new home and live with confidence, pre-checking is essential.
Although there are many methods for formaldehyde detection, the more accurate test results should be professional testing. So, do you know the most suitable time for indoor formaldehyde detection and how long is the sealing time? Let’s learn about it together next!
1. Selection of environmental protection standards
"Technical Specifications for the Control of Pollution Risks caused by Indoor Space Environment in Building Information Engineering of Civil Enterprises" GB50325-2001 is a national mandatory standard and must be enforced; "Indoor Air Quality Evaluation Standard" GB/T18883-2002 is a national recommended standard, non-compulsory laws, policies and regulations, and only when one party to a contract agrees that the requirements meet the standards in the agreement will have a mandatory effect. After the decoration is completed, the inspection shall be carried out according to the " Indoor Environmental Pollution Control Standards for Civil Construction Engineering " GB50325-2001; after the furniture is in place or after being placed for a period of time, the indoor air detection shall be carried out according to the " Indoor Air Quality Standards for " GB/t18883-2002.
2. The best time for testing
Civil construction projects must be carried out at least 7 days after the renovation project is completed and before the project is put into use. For personal decoration, it is recommended to conduct inspections one month after the renovation project is completed and one week after all furniture is fully in place. During this period, adequate ventilation should be ensured to facilitate the distribution of harmful substances and to bring the test results closer to actual use.
3. The best time to close
For civilian enterprise building information projects that adopt a natural environment ventilation, inspection and sampling should be carried out after China closes the external doors and windows for 1 hour; when a dispute arises, the working time for closing the external doors and windows for 1 hour shall be based on 1 hour (hour), which is our closed time, and many people do not need to pay attention to it. For decorators who are preparing to move in or have already moved in, according to the "Indoor Air Quality Standards" GB/t18883-2002, the door and window closing time during testing and sampling is 12 hours (that is, the window closing time is greater than 12 hours when sleeping at night, not more than 20 hours). Therefore, the test results of doors and windows closing for 12 to 20 hours during the air sampling process will be closer to the real situation.
4. Closed process and testing process
Do not use air conditioners or exhaust fans, and do not engage in activities that affect test results, such as smoking and using gas stoves. Do not use chemical products such as air fresheners, perfumes, etc. During the testing process, no more than 3 personnel in the formaldehyde testing agency shall be allowed to minimize the impact of the activities of the formaldehyde testing agency on the testing.
5. Stay in
According to my country's "Indoor Air Quality Standards" GB\u002FT18883-2002, it is required to be closed for 12 hours, and the indoor formaldehyde concentration shall not be higher than 0.1mg\u002Fm3, which is the best standard for human living environment sanitation. If you want to live in a new home well, formaldehyde testing is essential. When it comes to formaldehyde, many people always change their symptoms because they smell the aldehyde. In fact, the development of formaldehyde products itself is not very terrible. What is terrible is that the formaldehyde content exceeds the standard!
As a contradiction, formaldehyde has complex advantages and disadvantages and is still widely used. First, formaldehyde can be used as a disinfectant, a preservative. Second, it can be used in the textile industry and can play a good anti-wrinkle, anti-shrinkage and flame retardant effects. Again, it is widely used in various industrial products, covering all walks of life.The reason why we have always had a bad impression of formaldehyde is mainly because formaldehyde is everywhere in home decoration and is unpredictable! In addition to the artificial boards, wallpapers, paints, adhesives and other materials that we are all familiar with, many soft decorations and even home gadgets cannot escape, such as sofas, curtains, chemical fiber carpets, etc....
Although the effect of a small amount of formaldehyde does not affect it enough to be afraid, the formaldehyde detection in the new house is seriously exceeding the standard, which is another matter.
