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See Chinese contents: QC/T 662-2013 QC/T 662-2013: Vehicle air conditioner (HFC-134a) receiver dryer
This standard specifies the technical requirements, test methods, inspection rules, markings, packaging, transportation and storage of vehicle air conditioner (HFC-134a) receiver dryer. This standard is applicable to vehicle air conditioner receiver dryer with HFC-134a as the refrigerant, working pressure at 0 ~ 2.5 MPa, effective internal volume less than 1000 mL.
