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See Chinese contents: GB/T 39434-2020 GB/T 39434-2020: Technical requirement for ozone treatment recirculating cooling water for central air conditioning
This Standard specifies the general requirements, requirements and test methods of ozone treatment recirculating cooling water for central air conditioning. This Standard is applicable to open-type recirculating cooling water system for central air conditioning that adopts ozone treatment technology in civil buildings. This Standard does not apply to closed-type recirculating cooling water system.
