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| What are the new national standards for indoor formaldehyde, benzene, and TVOC testing? | |
| 2021-05-31 | |
| This question is about the new national standard of "Code for Indoor Environmental Pollution Control of Civil Construction Engineering" GB50325-2020, which was approved and issued by the Ministry of Housing and Urban-Rural Development of the People¡¯s Republic of China and will be implemented on August 1, 2020, replacing the original "Civil Construction Engineering Indoor Environmental Pollution Control Code" GB50325-2010 standard. Class I civil construction projects (residential buildings, hospitals, elderly buildings, kindergartens, school classrooms and other civil construction projects): Formaldehyde¡Ü0.07, benzene¡Ü0.06, TVOC¡Ü0.45 Class ¢ò civil construction projects (offices, shops, hotels, cultural and entertainment venues, libraries, stadiums, exhibition halls, stadiums, public transportation waiting rooms, restaurants, barber shops and other civil construction projects): Formaldehyde¡Ü0.08, benzene¡Ü0.09, TVOC¡Ü0.5 Air testing requirements: doors and windows need to be closed for 1 hour before testing, all cabinets and drawers should be opened, no leftover materials should be left in the room, and the temperature should be around 23¡ãC. |
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