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See Chinese contents: QC/T 661-2019 QC/T 661-2019: Vehicle air conditioner accumulator
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage of accumulators for automobile air conditioning systems. This standard is applicable to accumulators for automobile air conditioners using HFC-134a and HFO-1234yf as refrigerants. Those using other types of refrigerants may refer to it.
