ISO 8573 defines purity classes for compressed air, giving buyers a common language to specify particles, water and oil.
Three Contaminant Groups
The standard classifies particles, water and oil separately, so a spec such as 1.2.1 states one class for each group.
Reading the Classes
Lower numbers mean higher purity, with class 1 representing the strictest commonly used limits for particles, dew point and oil.
Choosing Your Class
Match the class to the application, from general plant air up to food, pharmaceutical and instrumentation requirements.
Contact us to match the right filtration and drying to your ISO 8573 target.