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The new version of the "Public Place Health Inspection Method" series of national standards will be officially implemented on December 1, 2025

Time：

2025-12-02

The new series of national standards for public place hygiene inspection methods will be officially implemented on December 1, 2025. The new standard testing items are more comprehensive, the testing technology is more advanced, and the management requirements are more standardized, which will provide strong guarantees for improving public health and safety.

The State Administration for Market Regulation (National Standards Commission) has approved the release of six national standards, including "Methods for Health Inspection of Public Places Part 1: Physical Indicators" (GB/T 18204.1-2025), which will be officially implemented on December 1, 2025.

In recent years, public health and safety have received widespread attention from society. In order to implement the requirements of "building a healthy environment" proposed in the "Healthy China Action (2019-2030)", this standard revision focuses on addressing public concerns about hygiene and safety issues in shopping malls, swimming pools, hotels, and other places.

Main changes

01. More comprehensive testing items

Add 9 new health indicator tests, including air circulation indicators such as fresh air volume and natural lighting coefficient, formaldehyde PM2.5、 Limit indicators for harmful substances such as radioactive gas radon, disinfection effectiveness of swimming pool water, prevention and control of bacteria such as Legionella (bacteria that may cause severe pneumonia) and β - hemolytic streptococcus (common pathogenic bacteria);

02. More advanced detection technology

Upgrade equipment requirements for bacterial detection in air conditioning ducts, and eliminate methods such as carbon dioxide volumetric titration and formaldehyde gas chromatography;

03. More standardized management requirements

According to the common technical requirements for public place health monitoring, adjust the frequency, sample size and sampling of various types of public place health monitoring, sample size for monitoring public goods and appliances, sample transportation, etc. in a unified manner.

Changes in various standards

Standard	Change
GB/T 18204.1-2025 "Methods for hygiene inspection in public places - Part 1: Physical indicators"	The standard name has been changed from "physical factors" to "physical indicators", and new measurement methods for fresh air volume, natural lighting coefficient, thermal comfort, and radon concentration in the air have been added. The measurement range of logarithmic explicit thermometer for measuring air temperature and pitot tube method for measuring fresh air volume has been further refined
GB/T 18204.2-2025 "Methods for hygiene inspection of public places - Part 2: Chemical indicators"	The standard name has been changed from "chemical pollutants" to "chemical indicators", adding terms and definitions for standard states, changing the scope of use, adding methods for testing oxidation-reduction potential, adding filter membrane weighing method for fine particles, high-performance liquid chromatography method for formaldehyde, and changing the testing methods for benzene, toluene, and xylene.
GB/T 18204.3-2025 "Methods for hygiene inspection of public places - Part 3: Air microbiological indicators"	The terms and definitions of "impact method" and "natural settling method" have been changed, and the storage and transportation, quality control of "total bacterial count, total fungal count, β - hemolytic streptococcus, and Legionella pneumophila" have been added. The fluorescence polymerase chain (PCR) rapid detection method for "Legionella pneumophila" has also been added
GB/T 18204.4-2025 "Methods for hygiene inspection of public places - Part 4: Microbial indicators for public goods and appliances"	Changed the terms and definitions of "total bacterial count", "coliform group", "Staphylococcus aureus", and "total fungal count", added the term and definition of "β - hemolytic streptococcus", and changed the microbial sampling method for cups and shopping carts (baskets).
GB/T 18204.5-2025 "Methods for hygiene inspection of public places - Part 5: Central air conditioning and ventilation systems"	The scope of application has been changed to include the terms and definitions of "Legionella pneumophila", "total bacterial count", "total fungal count", and "β - hemolytic streptococcus". Changed the method for detecting microorganisms on the inner surface of air conditioning ducts.
GB/T 18204.6-2025 "Methods for hygiene inspection in public places - Part 6: Technical specifications for hygiene monitoring"	Revised the frequency, sample size, and sampling requirements for health monitoring in various public places. Indoor air monitoring in various places should be conducted once in the morning and once in the afternoon of the same day, and monitoring of drinking water, swimming pools, and bath water should be conducted at least once in summer and winter of the year. Updated the sample size requirements for monitoring public supplies and utensils. The sample size for monitoring public supplies and utensils should be selected based on 3% -5% of the total number of items for cleaning, disinfection, and backup use. The sampling quantity for each type of supplies and utensils should not be less than 3 and not more than 10. Improved the quality control of on-site sampling operations and standardized the requirements for sample submission.

The release and implementation of this series of standards will further standardize the technical requirements for on-site sampling, testing and inspection methods related to public health indicators in China, and provide strong guarantees for improving public health and safety.

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