This standard specifies the terminologies and definitions, requirements and testing methods for the water quality for heating and air conditioning systems.
This standard is applicable to circulating cooling water and circulating cold water system for central air conditioning, circulating water system for direct-evaporative cooling and indirect-evaporative cooling, and circulating hot water system for central heating with water temperature less than or equal to 95℃.
This standard is not applicable to circulating water system for air conditioning humidification.
