Compressed Air Testing ISO 8573-1 / Manufacturing2023-05-15T09:27:54-06:00

ISO 8573 Compressed Air Testing

Our AirCheck✓™ Team of Experts is only a few clicks away. Trace Analytics is your lab for compressed air testing per ISO 8573. Contact us via our website and our team will respond quickly to your needs.

Contact the compressed air testing experts at Trace Analytics.

Compressed Air Testing to ISO 8573

More than 70% of production facilities use compressed air in the manufacturing process.

If the compressed air becomes contaminated, it will adversely affect the quality of the product. Proper assessment of the compressed air system, and regular testing can prevent serious contamination and promote the overall health of the system. Test your compressed air to ISO 8573 to ensure that compressed air is not a source of contamination is essential to producing a high-quality product.

  • Prevent Product Contamination: rusty pipes, excess water, oily piping, mold and bacteria

  • Monitor the Health of Your System: compressor fittings, distribution piping, storage receivers

  • Meet Certification Requirements: SQF– Safe Quality Foods, FDA – Food and Drug Administration, BRC – British Retail Consortium, PrimusGFS – GFSI Scheme

  • Meet Equipment Requirements: Class 0 Oil, Clean Dry Air, Particle-free

ISO 8573 Contaminants: What To Test For


Rust, Dust, Dirt, Shavings

Non-Viable Particles

Improper maintenance, inadequate or damaged filters, insufficient purging after changes can all result in particle contamination.


H2O Dew Point

Dew Point Testing

Piping, drops, dead ends, condensate traps, and polymer tubing can collect water creating a breeding ground for contamination.

Total Oil

Oil Vapor and Aerosol

Oil vapor and aerosol

Even oil-free compressors can be contaminated with oil due to atmospheric air,
inadequate filtration, or cleaning solvents.


Bacteria, Yeast, Mold

Microbial Testing

Bacteria, yeast, and mold are all particularly dangerous to end products and can result in recalls and loss of production time.

Manufacturing Industries Served

More than 70% of production facilities use compressed air in the manufacturing process. Proper assessment of the compressed air system, and regular testing can prevent serious contamination and promote the overall health of the system. ISO 8573 compressed air testing is a great way to ensure your system is producing quality, safe compressed air.

Food & Beverage

Test compressed air for use in manufacturing to ISO 8573. Meet certification requirements like SQF, BRC, Primus and more. Test for particles, water, total oil, and microorganisms.

Pharma & Med Device

Process air and gas testing available to meet ISPE requirements. ISO 8573, 14644, and custom specs are available for testing particles, water, total oil and microorganisms.


Test instrument air to ANSI/ISA S7.0.01-1996. Clean, dry air for pneumatic instruments addresses dewpoint, particle size, lubricant, and contaminants.

Need testing? Contact our team of experts at Trace Analytics.

How to Test: ISO 8573 AirCheck Kits for Compressed Air

ISO 8573 is an internationally recognized standard that defines major contaminants in compressed air and presents a comprehensive system for air purity designations. The implementation of this standard supports accurate testing of the major contaminants in compressed air – particles, water, oil, and microorganisms. ISO 8573 is used widely throughout the compressed air industry, acting as a common language available to the manufacturer, compressed air system supplier, and compressed air testing laboratory.

Analytical methods and sampling techniques

compressed Air Testing Trace Analytics Icon

Internationally recognized standards and certifications

  • United States – ANSI
  • United Kingdom – BCAS
  • Germany – VDHC
  • India – BIS

Align with compressor and filtration capabilities

  • Atlas Copco
  • CompAir
  • Kaeser
  • Parker Hannifin
  • Sullair

Comprehensive purity designations

  • Particle Classes 1–9
  • Water Classes 1–6
  • Oil Classes 1–4
  • Custom specs available

K810 AirCheck Kit

The AirCheck Kit™ K810 is designed to met ISO 8573 compressed air purity classes for manufacturing facilities. Custom specifications are available.. This kit is typically used by food, pharmaceutical, medical device, and nuclear customers who use low pressure compressed air systems in their processes. Test from the compressor or point of use. Watch our online sampling video for Manufacturing Air Testing.

Microbial and Environmental Testing Available!

ISO 8573-1 Purity Classes

By Particle Size
(maximum number of particles per m3) See Note 2
By Mass Vapor Pressure Dewpoint Liquid Liquid, Aerosol, & Vapor
See Note 1
0.1 µm < d ≤ 0.5 µm 0.5 µ m< d ≤ 1.0 µm 1.0 µm < d ≤ 5.0 µm mg/m3 °C °F g/m3 mg/m3
0 As specified by the equipment user or supplier and more stringent than class 1
1 ≤ 20,000 ≤ 400 ≤ 10 - ≤ -70 ≤ -94 - ≤ 0.01
2 ≤ 400,000 ≤ 6,000 ≤ 100 - ≤ -40 ≤ -40 - ≤ 0.1
3 - ≤ 90,000 ≤ 1,000 - ≤ -20 ≤ - 4 - ≤ 1
4 - - ≤ 10,000 - ≤ +3 ≤ +37 - ≤ 5
5 - - ≤ 100,000 - ≤ +7 ≤ +45 - -
6 - - - 0 – ≤ 5 ≤ +10 ≤ +50 - -
7 - - - 5 – ≤ 10 - - ≤ 0.5 -
8 - - - - - - ≤ 5 -
9 - - - - - - ≤ 10 -
X - - - > 10 - - > 10 > 5
No purity classes are identified No purity classes are identified
Gases mentioned are: CO, CO2, SO2, NOX, Hydrocarbons in the range of C1 to C5
Note 1: ISO 8573 Oil includes aerosol, vapor in the range of C6+, and liquid oil. Liquid oil is typically sampled when wall flow is present, contamination is suspected, or results are greater than 5 mg/m3. Trace can provide a separate kit for liquid oil testing.
Note 2: For Particle Class 0, 1, & 2 (0.1 - 0.5 µ range only), a laser particle counter with a high-pressure diffuser is required. Rental of this equipment is available on a reservation basis. Contact us for details. To qualify for Particle Classes 0 through 5, there can be no particles greater than 5µ present.
In some cases, Trace uses alternative sampling techniques or analytical methods to those specified in ISO 8573, for details see Smith White Paper, 2012.
Air & Gas Specifications referenced above may be viewed and/or purchased from: ANSI - American National Standards Institute

Industries We Serve

Why Choose Trace Analytics?


Our A2LA accredited laboratory is an unbiased third-party laboratory with no financial interest in other compressed air products. The extensive quality control procedures at Trace’s lab ensures that you will receive quality data. Trace is an A2LA accredited laboratory complying with ISO 17025, certificate #0322-01.

Easy to Use Kits

The AirCheck✓ Kit™ is designed for use with compressed breathing air specifications requiring a dry dew point, such as ISO 8573, NFPA 1989, CGA, ISPE, and more. Other specifications are available. These kits are typically used by food, packaging, medical device, pharmaceutical, nuclear, scuba divers, fire departments and industrial breathing air facilities to test compressed air to meet their requirements.

Watch our online sampling video for Compressed Air Testing.


Compressed air has been our specialty since 1989 — our AirCheck✓™ Team of Experts has decades of experience in the specific field of compressed air and environmental analyses, testing, and troubleshooting. Excellent customer service, and the desire to provide a more efficient and accurate testing experience, have been the backbone of our company since 1989 — and still hold true today. We pride ourselves on the level of customer service we provide — it is the core of our relationship with all of our customers.

Other Testing Services for Manufacturers


Test for bacteria, yeast, and mold in controlled environments. Trace offers contact, swab, ambient air, and compressed air testing.


Trace Analytics can help manufacturers meet custom specifications or international guidelines for gas purity.


Compressed breathing air testing is available for industrial facilities. Meet OSHA or CGA standards for breathing air air with regular testing.

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