Regulations on the Quality Level of Compressed Air

According to GB/T13277-91, the quality of compressed air should meet the following requirements:

1. The dew point under working pressure is -40 ℃;

2. The dust particle size in the purified gas shall not exceed 1um, and the maximum mass concentration shall not exceed 1 mg/m3;

3. The maximum oil content shall not exceed 1 mg/m3.

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