Standard for oil content of compressed air for plant equipment

The oil content standard of compressed air in factory equipment usually varies according to different industries and application fields. The following are some common compressed air oil content standards and their explanations:

1. General Standard

generally speaking, the oil content standard in compressed air is 5 mg/m & sup3; below. This means that no more than 5 mg of oil should be present in one cubic meter of air. This standard is widely used in industries that require high-quality air resources, such as pharmaceuticals, food processing, and beverage production.

2. industry-specific standards

1. pharmaceutical Industry:
   • in the pharmaceutical industry, especially in a production environment that complies with GMP (Good Manufacturing Practice) standards, the oil content of compressed air is more stringent. Generally speaking, the oil content of compressed air should not exceed 0.1 mg/m & sup3; to ensure the air quality in the drug production process.
2. Semiconductor Industry:
   • for the semiconductor industry with extremely high air quality requirements, CLASS 0 compressed air may be required, that is, oil content is less than 0.01 mg/m & sup3;. This is often referred to as "oil-free", but it should be noted that "oil-free" does not mean absolutely oil-free, but refers to extremely low oil content.
3. Other high-precision industries:
   • in other industrial fields that require high-precision control of air quality, such as precision instrument manufacturing, aerospace, etc., there may also be strict requirements for the oil content of compressed air. The specific standards need to be determined according to industry specifications and product requirements.

3. international standards

the international standard ISO 8573 is usually used to specify the content of pollutants in compressed air, including liquid oil. The ISO 8573-1 Part 2 standard divides the oil in compressed air into multiple levels. Enterprises that have certain requirements for the oil content of compressed air can refer to this standard to determine the appropriate oil content level.

4. detection method

in order to accurately measure the oil content in compressed air, a variety of detection methods can be used, such as spectroscopy, chromatography, oil detection tube method, oil cartridge detection method and PID oil vapor detection method. These methods have their own advantages and disadvantages, and the selection of the appropriate detection method needs to take into account the detection accuracy, response speed, ease of operation and other factors.

5. control measures

in order to reduce the oil content in compressed air, companies can take a series of control measures, such as regular cleaning and replacement of filters, optimizing lubrication systems, and strengthening equipment maintenance. Through effective control measures, the quality of compressed air can be effectively improved, and the normal operation of production equipment and the stability of product quality can be guaranteed.

To sum up, the oil content standard of compressed air of factory equipment should be determined according to the specific industry and application field, and refer to the relevant international standards and industry norms. At the same time, by adopting appropriate detection methods and control measures, the quality of compressed air can be ensured to meet production requirements.