Identifying your air quality needs
Understanding your air quality requirements is essential for determining the appropriate air treatment measures.
The ISO 8573-1 (2010) standard plays a crucial role in defining compressed air quality. This standard categorizes air quality into seven classes, addressing three primary contaminants: particles, oil, and moisture. Essentially, it specifies the acceptable levels of contaminants permissible at various points within your compressed air system.
For instance, in some countries, such as [1;2;1], the standard for brewing beer mandates that air quality meets class 1 for particles and oil and class 2 for water content. Other countries may adhere to a [1;4;1] standard.
Class
Solid Particle
Maximum number of particles per m²
Water
Pressure dew point (°C)
Oil
(Incl. vapor mg/m²)
0.1-0.5 micron
0.5-1.0 micron
1.0-5 micron
0
As specified by the equipment user or supplier and more stringent than class 1
1
≤ 20,000
≤ 400
≤ 10
≤ -70 (-94 °F)
≤0.01
2
≤ 400,000
≤ 6,000
≤ 100
≤ -40 (-40 °F)
≤ 0.1
3
Not specified
≤ 90,000
≤ 1,000
≤ -20 (-4 °F)
≤ 1
4
≤ 10,000
≤ 3 (38 °F)
≤ 5
5
≤ 100,000
≤ 7 (45 °F)
NA
6
≤ 10 (50 °F)
Class 0 represents the best air quality possible. In critical environments it is essential that the compressed air is 100% oil-free. Contamination by even the smallest quantities of oil can cause costly production downtime and product spoilage, resulting in product recalls and loss of reputation.
Chicago Pneumatic SpiralAir and WISAir compressors provide ISO 8573-1 Class 0 certified quality air, making them ideal air compressors in breweries or any setting where hygiene is crucial. Outstanding reliability, low maintenance and operating costs make oil-free compressors a sound investment.
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