This standard specifies the basic conditions, process and procedures, process requirements, and refrigerant storage and handling for automotive air conditioning refrigerant recovery, purification and filling operations. This standard applies to the recovery, purification and filling operations of automobile air-conditioning refrigerants in the automobile maintenance industry.
JT/T 774-2010 history
2010JT/T 774-2010 Technical norms of automobile air-conditioning refrigerant recovery-recycling-recharge