What is the ISO 8573 standard?

by Sarah Loeffler | Nov 20, 2025 | 0 comments

What is the ISO 8573 standard?

ISO 8573 is the key standard for compressed air purity. It defines contamination classes and test methods for water, oil and particles in compressed air systems.

ISO 8573 is a series of international standards for compressed air purity. The standard specifies the maximum allowable levels of impurities, such as water, oil, and particulate matter, in compressed air systems. The standard is divided into several parts, each covering a different aspect of compressed air purity.

Part 1 of the standard, for example, covers the general requirements for compressed air purity, while part 2 covers the measurement methods to be used for determining the levels of impurities in compressed air. The standard also defines classes of compressed air purity, with class 1 being the highest and class 8 the lowest.

Each class corresponds to a different set of maximum allowable impurity levels, and the class that a particular compressed air system is required to meet will depend on the application for which the compressed air will be used.

Tags: compressed air quality standards, impurity classes, ISO 8573 compressed air purity, water oil particle limits

compressed air quality standards impurity classes ISO 8573 compressed air purity water oil particle limits

What is the ISO 8573 standard?

What is the ISO 8573 standard?

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