Know Your Industrial CO2 Grades

(Or Choose A Supplier Who Does!)

Choosing the correct grade of carbon dioxide (CO2) for your application is incredibly important – but do you actually know what grade of CO2 gas you’re receiving from your current supplier?

Commercial CO2 comes in a range of purity grades as defined by law. Consider this chart:

CO2 Purity By Grade

Research 99.999
Supercritical Fluid 99.998
Laser 99.95
Anaerobic 99.95
Beverage 99.9
Food 99.9
Bone Dry 99.8
Medical 99.5
Industrial 99.5

The higher you go on the list, the fewer impurities (such as ammonia, benzene, oxygen, and carbon monoxide) are allowed. For example, a grading of 99.9 percent purity for beverage and food applications (a standard set by the International Society of Beverage Technologists, or ISBT) is now mandated by the Food and Drug Administration – which means that if you own a restaurant, bar, brewpub, or any other establishment in North Carolina that serves beverages, chances are you’ll be required to start using it very soon (if you aren’t already).

Medical applications for carbon dioxide are also a significant category for the gas. Medical grade CO2 is often used as an insufflation gas for minimal invasive surgery (laparoscopy, endoscopy, etc.) to enlarge and stabilize body cavities for better visibility of the surgical field (as a liquid, CO2 can be used in cryotherapy applications).

Two Questions To Ask Your CO2 Supplier

If you are currently receiving CO2 from a supplier (or are looking for a supplier for your new venture), there are two questions you need to ask:

    industrial gas purity by grade
  1. What grade/purity CO2 are you delivering to me?
  2. Can you provide me with a certificate that states the purity?

Make sure your industrial gas provider can not only answer those questions, but can also demonstrate the gas quality.

James Oxygen: Medical CO2 And Much More

At James Oxygen, we’re your industrial gas specialists, with a particular expertise in medical gas services. In addition to medical grade CO2, we offer a variety of medical-grade gases for doctor’s offices, medical facilities and clinics, including:

James Oxygen & Supply also offers cryogenic gas delivery and service, and we’re your go-to if you need portable oxygen tanks for home use.

For industrial and medical gas delivery in western North Carolina, trust the pros at James Oxygen. Contact us to join our family of customers today!