2026-04-10Views：
The standard of water-free and oil-free compressed air mainly relates to the moisture and oil content in the compressed air. The following is a specific standard description of these two aspects:
1. moisture standards:
the humidity of the compressed air is usually required to be less than 50%. Excessive humidity may cause equipment corrosion, pipeline blockage and other problems, affecting the quality and use of compressed air.
2. oil content standards:
according to ISO 8573-1, the highest grade of oil-free compressed air (Class 0) requires an oil content of less than 0.01 mg/m & sup3;. This is the main indicator to measure whether compressed air is oil-free.
In different fields of application, the oil content in the compressed air is also specified. For example:
in the Chinese Pharmacopoeia and GMP, the oil content of compressed air is required to be less than or equal to 0.1 mg/m & sup3;.
The oil content of medical compressed air gas must be ≤ 0.1 mg/m & sup3 according to European Pharmacopoeia;.
Diving breathing compressed air requires an oil content of <5 mg/m & sup3; in the United States and China, and <1 mg/m & sup3; in the United Kingdom;.
These standards are based on specific application needs and conditions to ensure the quality and safety of compressed air. In practical application, the relevant standards and regulations should be consulted and followed according to the specific situation.
In addition, for the oil-free and water-free air compressor itself, there are also a series of design, manufacturing and use standards that need to be followed to ensure product quality and safety performance. These standards include, but are not limited to, Code for Design of Oil-free Air Compressors and Code for Manufacture of Oil-free Air Compressors (GB/T 3854-2019). When using an oil-free and water-free air compressor, it is also necessary to follow specific operation and maintenance specifications to ensure the normal operation and service life of the equipment.
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