GB-T 18883 serial number parameter category parameter unit standard value remarks 1 physical temperature℃ 22 ~ 28 summer air conditioning 16 ~ 24 winter heating 2 relative humidity% 40 ~ 80 summer air conditioning 30 ~ 60 winter heating 3 air flow m/ S 0.3 summer air conditioning 0.2 winter heating 4 fresh air volume m3/ H p3005 chemical sulfur dioxide SO2 mg/m3 0.5 1 hour average 6 nitrogen dioxide NO2 mg/m3 0.24 1 hour average 7 carbon monoxide co mg/m310/hour average 8 CO2 CO2% 0. 1 day average 9 ammonia NH3 mg/ M3 0.2 1 hour mean value 65438 P mg/m3 1 daily mean value 16 daily mean value of PMl0 mg/m3 0. 15/7 total volatile organic compounds TVOC mg/m3 0.68h mean value 17. Code for Indoor Environmental Pollution Control of Civil Building Engineering (GB50325-200 1) serial number parameter unit limits are Class I and Class II 1. Formaldehyde HCHOmg/ M3≤0.08≤0. 122. Ammonia NH3mg/m3≤0.2≤0.53. Benzene C6H6mg/m3≤0.09≤0.094. Radon 222RnBqm3≤200≤4005. Total volatile organic compounds (TVOC) mg/m3 ≤ 0.5. Category II: hotels, office buildings, cultural and entertainment places, bookstores, libraries, exhibition halls, gymnasiums, shopping malls (shops), public transport waiting rooms, hospital waiting rooms, restaurants, barbershops and other places. According to the different requirements of indoor environment, the corresponding closing time and inspection items are adopted. Strictly follow the standard scientific test. Inspection notice: 1. It is up to the owner to choose before or after the renovation is completed, before or after the floor is laid, and before or after the furniture is moved in.
2. Avoid using interior decoration deodorant one week before the exam.
Close the doors and windows one hour before the exam.
4. Avoid turning on air conditioning or ventilation equipment before or during the test.
5. Do not leave any residual decorative sundries on the site, such as plates, paints, coatings, thinners, etc.
6. The owner of the proving ground should cooperate. 7. The detection time is related to the number of points. 2-3 test sites will take about 1 hour.