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Class 0 certified oil-free air

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TÜV Rheinland Certification

Class 0

Ensuring quality and compliance in compressed air systems

In the realm of industrial processes, maintaining high standards of quality and compliance is paramount. The TÜV Rheinland certification shows the thorough testing and checks that guarantee the reliability and efficiency of Oil-free compressors. The certificate gives a clear report on the testing and validation of Atlas Copco Oil-free portfolio. It shows that these compressors meet the international standards.

Overview of the certification

The TÜV Rheinland certification, issued by TÜV Rheinland Energy & Environment GmbH, validates the performance of the Atlas Copco ZR/ZT/ZH/ZE/ZA compressors according to ISO 8573-1: 2010 Part 1, which pertains to contaminants and purity classes. This certification is crucial for industries that need high-quality compressed air. This includes- but not limited to- pharmaceuticals, food and beverage, and electronics manufacturing.

Testing and validation process

The certification process involved a series of meticulous tests conducted on the Atlas Copco Z compressors. The tests were designed to determine there are no traces of oil in the compressed air stream, ensuring that it meets the stringent requirements set by ISO 8573-1: 2010 Part 1 and ISO 8573-3: 2018 Part 2 and 5, which outlines the test methods for measuring aerosols, oil vapour and VoC’s.

The tests were caried out without any cooling or oil removal devices in between the compressor and the measuring point.

Key Findings: no traces of downstream oil contamination

The key finding from the tests was that the measurement showed no traces of oil in the compressed air stream. This indicates that the Atlas Copco Z compressor line avoids having any risk of oil contamination in the air, ensuring that the compressed air meets the highest standards of air quality.

Certification and compliance

TÜV Rheinland certified that the air quality from the Atlas Copco Z compressors are "Class 0" Oil-free. This is based on test results and follows ISO 8573-1: 2010 Part 1. This classification shows the highest level of air purity. This makes the Z compressors ideal for industrial applications that need very clean and Oil-free compressed air.

Conclusion: Class 0 for oil with a Z compressor

The TÜV Rheinland certification for the Atlas Copco Z compressor shows how important testing is. It helps ensure the air quality and reliability of industrial compressed air systems. By following international standards, Atlas Copco shows its commitment to offering high-quality solutions for different industries.


This certification boosts the credibility of the Z compressors. It also assures customers of its great performance and compliance with global standards.

Download here the TUV certificate of Z compressors