GB/T 18883-2022
Standards for indoor air quality (English Version)
- Standard No.
- GB/T 18883-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 18883-2022
- Replace
- GB/T 18883-2002
- Scope
- This document specifies the physical, chemical, biological and radioactive indicators and requirements of indoor air quality, and describes the measurement methods of each indicator. This document applies to residential and office buildings, and other indoor environments refer to this document.
- Introduction
Core changes in the standard revision
Indicator category 2002 version 2022 version Description of changes New indicators - PM2.5, trichloroethylene, tetrachloroethylene Response to the demand for prevention and control of fine particulate matter pollution Adjustment of limit values Formaldehyde 0.10mg/m3 Formaldehyde 0.08mg/m3 Requirement to increase by 23% Terminology update Total colony count Total bacteria count Aligned with international standards
Technical requirements for key indicators
Chemical indicators: Formaldehyde is determined by high performance liquid chromatography (detection limit 0.0003mg/m3), benzene series are recommended by thermal desorption-gas chromatography, and TVOC determination requires the use of mass spectrometer detector.
Biological indicators: Total bacteria count ≤1500CFU/m3, sampling requires the use of six-stage sieve impact microbial sampler.
Implementation suggestions
- After renovation, seal the room for 12 hours before testing
- PM2.5 sampling must adopt the impact weighing method and the duration must be ≥20h
- When radon concentration exceeds the standard, protective measures such as sealing floor cracks should be taken
GB/T 18883-2022 Referenced Document
- GB 3095-2012 Ambient air quality standards
- GB/T 12372 Standard method for examination of nitrogen dioxide in air of residential areas--Modified Saltzman method
- GB/T 14669 Air quality. Determination of ammonia. Ion selective electrode method
- GB/T 15435 Ambient air--Determination of nitrogen dioxide--Saltzman method
- GB/T 16128 Standard method for hygienic examination of sulfur dioxide in air of residential areas--Formaldehyde solution sampling-pararosaniline hydrocloride spectrophotometric method
- GB/T 16129 Standard method for hygienic examination of formaldehyde in air of residential areas--Spectrophotometric method
- GB/T 18204.1 Examination methods for public places.Part 1:Physical parameters
- GB/T 18204.2 Examination methods for public places.Part 2: Chemical pollutants
- GB/T 27476.5 Safety in testing laboratories.Part 5:Chemical aspects
- GB/T 32465 Requirements for verification & validation of detection methods and internal quality control on chemical analysis
- HJ 590 Determination of ambient air ozone UV photometry "No. 1 Amendment"
- HJ 93 Ambient air particulate matter (PM10 and PM2.5) sampler technical requirements and detection methods "No. 1 Amendment"
GB/T 18883-2022 history
- 2022 GB/T 18883-2022 Standards for indoor air quality
- 2002 GB/T 18883-2002 Indoor air quality standard