From confined spaces, to spray booths, to clean rooms, to large-scale food, beverage, and pharmaceutical manufacturing, clean safe air is a priority.

In 1970 Congress passed 30CFR, PartII, SubpartJ, 11.121(b) which states, "Compressed gaseous breathing air shall meet the applicable minimum grade requirements for Type I gaseous air set forth in the Compressed Gas Association (CGA) 'Commodity Specification for Air G-7.1', (Grade D or higher quality)", making periodic testing of compressed breathing air a law. In addition to that are requirements through other government agencies which may apply such as OSHA, FDA, and the USP.

A variety of CGA G-7.1 grades are used depending upon the type of industry and application, but the two most common industrial air grades are Grade D and E.

Rocket Air Labs is able to test your company's air for compliance with either standard and is proud to be a part of helping to keep your employees, customers, and work environment safe. We recommend using our Breathing Air Test Kit for breathing air compliance. Or our Process Air Test Kit for oil, mist, and particulate testing. So simple you can draw your own sample, without needing an over-complicated test apparatus or a service call.

Air Specifications: Industrial

Characteristic CGA Grade D CGA Grade E
Carb. Dioxide 1000 ppm 1000 ppm
Carb. Monoxide 10 ppm 10 ppm
Dew Point
Methane 25 ppm
Nitrogen Bal. Predom. Bal. Predom.
Odor None None
Oil / Particulates 5 mg/m^3 5 mg/m^3
Oxygen 19.5 - 23.5% 20.0 - 22.0%
Table 1: Recommended Limits For Safe Compressed Breathing Air Used In Industrial Applications. (Click Row To Learn More.)

Our Pledge

We promise to provide the industry's best test kit and service at the best price. We promise to listen to your needs, resolve all problems quickly, and honor all our commitments.


We are here for you. Please don't hesitate to contact us.
Phone: (800) 830-4064
Fax: (800) 830-4036
Address: P.O. Box 768, Toluca, IL 61369

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