Indoor air quality standard
- Categories:Company news
- Author:
- Origin:
- Time of issue:2018-10-11 13:50
- Views:
(Summary description)There are two indoor air quality standards in China, one for the Ministry of Health and one for the Ministry of Construction. They are: GB/T18883-2002 GB50325-2001
Indoor air quality standard
(Summary description)There are two indoor air quality standards in China, one for the Ministry of Health and one for the Ministry of Construction.
They are: GB/T18883-2002 GB50325-2001
- Categories:Company news
- Author:
- Origin:
- Time of issue:2018-10-11 13:50
- Views:
National Standard for Indoor Environment 《GB50325-2001》
Contaminant name | One type of construction | Second type construction project | Standard |
formaldehyde | ≤ 0.08mg/m3 | ≤ 0.12mg/m∧3 | GB50325-2001 |
benzene | ≤ 0.09mg/m3 | ≤ 0.09mg/m∧3 | GB50325-2001 |
ammonia | ≤ 0.20mg/m3 | ≤ 0.50mg/m∧3 | GB50325-2001 |
radon | ≤ 200Bq/m3 | ≤ 400Bq/m∧3 | GB50325-2001 |
TVOC | ≤ 0.5mg/m3 | ≤ 0.6mg/m∧3 | GB50325-2001 |
Note: One type of building: residential, hospital, elderly apartment, kindergarten, school classroom, etc.
Class II buildings: office buildings, businesses, hotels, cultural and entertainment venues, bookstores, exhibition halls, libraries, gymnasiums, public transportation, restaurants, barbershops, etc.
National standard for indoor environmentGB/T18883-2002
Serial number | parameter | unit | standard | Remarks: |
1 | formaldehyde | mg/m∧3 | 0.10 | 1 hour average |
2 | ammonia | mg/m∧3 | 0.20 | 1 hour average |
3 | benzene | mg/m∧3 | 0.11 | 1 hour average |
4 | radon | Bq/m∧3 | 400 | Annual average (action level*) |
5 | Total Volatile Organic Compounds TVOC | mg/m∧3 | 0.60 | 8-hour mean |
Remarks: *Action level means recommending action to reduce radon concentration. |
Scan the QR code to read on your phone
Mobile version
The public
Tel:86-513-85922725 / 86-513-85924148 / 86-513-85922002
Fax:86-513-85920873
Contacts:Mr.Feng(86-15190828099) Mr.Gu(86-15365550875)
E-mail:ntsyhb@163.com
Address:No. 196, Renmin Middle Road, Nantong
Copyright © 2021 Nantong Sanyou Environmental Protection Technology Co., Ltd. 苏ICP备13007877号