T/SXWSCY 002-2020 The specification for cleaning and disinfection services of central air conditioning systems in public places
T/SXWSCY 002-2020 The specification for cleaning and disinfection services of central air conditioning systems in public places
Basic Information
Scope
Scope: This standard specifies the terms and definitions, on-site survey and preparation, cleaning service requirements, disinfection service requirements, safety measures requirements, service file management, and requirements for professional cleaning and disinfection service organizations for centralized air conditioning and ventilation systems in public places. This standard applies to the cleaning and disinfection of centralized air conditioning and ventilation systems in public places with no special requirements for air filtration; Main technical content: 1. Cleaning frequency: Centralized air conditioning and ventilation systems in public places should be cleaned regularly. The cleaning interval should not exceed one year. In high-humidity areas or areas with severe pollution, the cleaning interval should be shortened accordingly. If the inspection results are unsatisfactory, the cleaning should be carried out immediately. 2. Cleaning effect: After the air ducts are cleaned, the residual dust on the inner surface of the air ducts should be less than 20g/m2, and the total bacterial count and total fungal count on the inner surface of the air ducts should be less than 100 CFU/cm2. After the components are cleaned, the total bacterial count and total fungal count on the surface should be less than 100 CFU/cm2. 3. Cleaning method: Use professional cleaning equipment for physical and chemical cleaning to ensure that the environment will not be polluted again. 4. Disinfection method: Ventilation ducts and components should be cleaned first and then disinfected. When conditions permit, ozone disinfection equipment should be used for disinfection. If conditions do not permit, chemical disinfectant spraying or wiping disinfection should be used. For metal materials, quaternary ammonium salts disinfectants are preferred, and for non-metallic materials, peroxide-based disinfectants are preferred. For condensate water trays, disinfectant tablets should be added to the t