Nanjing 20% of the newly renovated room indoor formaldehyde exceeded the standard decoration materials into a disaster.

China Paint Network
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house decoration process, if not pay attention to, it is easy to appear due to unqualified decoration materials lead to the home formaldehyde exceeding the standard. On November 11th, the Nanjing Municipal Quality Supervision Bureau carried out a "quality month" free testing of the decoration of indoor air situation report came out, in the sampling of 85 households, 20 households failed, spot check pass rate of 76.5%. Experts remind that decoration as far as possible to choose brand decoration materials, furniture is best to choose the full edge. Report: Sampling 85 households, pass rate of 76.5%
During the "Quality Month" in September this year, the Nanjing Municipal Quality Supervision Bureau launched free of charge for residents of newly renovated residential testing formaldehyde activities, as long as the new decoration of the house and no room, can apply to participate, Nanjing City Quality Inspection Institute professional and technical personnel will be door-to-door testing. "The residents basically covered all districts of Nanjing, and the renovation was completed in less than half a year." Nanjing City Quality Inspection Institute experts, this test is based on GB50325-2010 "civil construction project indoor environmental pollution control norms" to be carried out, indoor formaldehyde index to 0.08mg/m3. 11 out of the test report shows that the actual sampling of 85, qualified 65 households, unqualified 20 households, spot check pass rate of 76.5%, which means that more than 20% of newly renovated home interior formaldehyde exceeded the standard.
, the grade and quality of the material used had an important effect on the formaldehyde content of indoor air. "Some members of the public have purchased poor quality decorative materials due to a lack of recognition of the quality of the materials. Some residents directly to the right to purchase materials to the decoration company, and some decoration companies in order to reduce costs, choose poor quality decoration materials, to a certain extent, caused by home furnishings pollution. "The tester explained that formaldehyde is widely used as raw materials for the production of formaldehyde resins, phenolic resins, etc., these resins are used as adhesives, in a variety of decorative materials and furniture, a large number of use, become the main source of formaldehyde indoors. Intensive use of artificial panels, wallpaper caused formaldehyde exceeding the standard
the completion time is also an important reason for formaldehyde exceeding the standard. "Of the 20 households that failed the test, 13 had a completion time of no more than 3 months, of which the higher content of households was completed for 1-2 months." Inspectors said that, in addition, the intensive use of contaminated materials may also cause formaldehyde exceeding the standard, some families in pursuit of beautiful and complex interior decoration effect, the use of artificial panels, wallpaper and complex furniture, these products of individual formaldehyde release detection may have reached the standard, but because it is placed in a certain area of space, formaldehyde release formed a superposition effect, resulting in indoor air formaldehyde content exceeded the standard. Renovation process or after completion, did not maintain indoor ventilation, some housing itself due to household type, orientation problems caused by poor indoor ventilation, will lead to the release of formaldehyde accumulation in the interior, can not be effectively distributed.
high temperature and humidity environment are also important factors affecting formaldehyde content. "At high temperatures and humidity, resins will speed up hydrolysing, release more formaldehyde, increase temperature by 1x, increase humidity by 12%, and release formaldehyde by about 15%. In contrast, formaldehyde release is slower and lower in low temperature and low humidity. Most of the sampling houses in the summer decoration completed, the temperature is higher, the building decoration materials in the free formaldehyde release rate is higher. Reminder: buy materials to see the test report, try to pick full-sealed furniture
formaldehyde release is a slow, continuous, uninterrupted process, according to the different decoration materials, formaldehyde volatilization period can last 3 to 15 years, the more closed the environment, the more likely it may lead to formaldehyde content exceeding the standard. How to reduce the amount of formaldehyde in the air in the home? Nanjing City Quality Inspection Institute experts issued a special reminder: 1. Choose a formal brand and ask for testing reports. Pay attention to check the logo on the packaging, do not buy "three no" products,
2. Pick plate furniture need to pay attention to the sealing edge, to see if you have done all the sealing. Homemade furniture if the use of artificial panels should also do a good job of sealing treatment, effectively inhibit formaldehyde release;
3. Try to choose simple and simple decoration mode. Too complex decoration will increase the source of pollutants, at home installation is best moderate