WS 488-2016 in English
VALIDOperational management of central air conditioning systems for hospitals
- Issued on:2016-11-02
- Implemented on:2017-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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本标准规定了医院中央空调系统竣工验收合格并交付使用后，医院中央空调系统运行管理的基本要求和中央空调系统从业人员在主要设备运行操作、维护保养、应急处理等方面的行为准则。
本标准适用于各级各类医院的中央空调系统运行管理，有类似空调系统的其他医疗机构可参照执行。
本标准不适用于洁净室及相关受控环境。
Introduction
Analysis of the core content of the standard
| System module | Mandatory clauses | Recommended clauses | Detection frequency |
|---|---|---|---|
| Cold and hot source host | 5.2.1/5.2.4 | 5.2.5 | Record every 2 hours during operation |
| Water pipeline | 5.3.2/5.3.3 | 5.3.1 | ≥2 inspections per day |
| Terminal equipment | 5.4.8/5.4.11 | 5.4.5 | Biological testing every two months |
Key technical requirements
Biological pollutant prevention and control: The standard clearly requires that when the dust volume on the surface of the air duct exceeds 1g/m² or the total number of bacteria is greater than 100CFU/cm², the system must be cleaned and disinfected according to WS/T 396. The frequency of air colony count monitoring in key departments such as operating rooms and ICUs must reach a coverage rate of ≥10% per quarter.
Actual application case
When implementing clause 5.4.11 of the standard, a tertiary hospital established a dynamic monitoring mechanism. After discovering the spread of adenovirus in the pediatric ward, it immediately shut down the air conditioning terminals in the area and used hydrogen peroxide atomization disinfection to reduce the bacterial concentration at the air outlet from 350 CFU/m³ to 45 CFU/m³, meeting the requirements of GB 15982.
Analysis of Standard Evolution
Compared with the 2003 version, the 2016 version mainly strengthens:
1. Infection control dimension: Added special testing requirements for biological contaminants (5.4.2)
2. Emergency management: Clarified the system shutdown process during an infectious disease outbreak (7.1-7.6)
3. Data traceability: Extended the retention period of operation records from 1 year to 2 years (4.5.3.2)
Implementation suggestions
- It is recommended that hospitals establish air conditioning system hygiene files, including filter replacement records (according to Table 1 standards) and disinfectant usage records
- For special departments such as blood wards, an independent air system should be configured and the monitoring frequency should be increased to once a month
- Energy-saving operation must ensure compliance with GB/T Adjust the fresh air volume under the premise of CO₂ concentration of 17094 (≤0.1%)
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