Medical Compressed Air & Gas Testing

Trace Analytics, LLC – the leading compressed air testing laboratory since 1989

Medical Compressed Air & Gas Testing

The NFPA 99 Health Care Facilities, 2005 specification provides requirements for medical gas systems in health care facilities. Trace provides air and gas analyses in support of these guidelines.

Medical Gas Testing Requirements Include:

  • Piping Particulate
  • Medical Air Purity
  • Piping Purity (Air, O2, N2O, N2)
  • Medical Gas Concentration Test (O2, N2O, N2)

Trace’s routine turnaround for results is fast – within 24 hours of receipt with immediate notification if sample fails to meet specifications. Test results are sent electronically within an additional work day. However, if you need your results faster – Same Day Rush Services are available for an additional fee.

Trace Analytics, LLC is a proud member of The Medical Gas Professional Healthcare Organization (MGPHO) and The National Fire Protection Association (NFPA).

Would a paramagnetic or laser oxygen analyzer be able to detect all possible contaminants or impurities in a medical gas? No. Although, paramagnetic and laser oxygen analyzers are very accurate and reliable when calibrated correctly, these types of analyzers can only detect the identification and strength of oxygen. They are unable to detect contaminants or impurities that may be present, such as hydrocarbons or arsenic compounds. For more information see this document from the FDA.

Trace Analytics strongly recommends reading NFPA 99 in its entirety for a full understanding of all standards pertaining to health care facilities. A copy of NFPA 99 can be viewed or purchased at

Medical Gas Testing for Health Care Facilities

Trace provides medical air and gas analyses in support of NFPA 99 guidelines, directly to health care facilities who maintain their own equipment with an experienced medical gas and vacuum pipeline testing ASSE 6030 qualified employee. Most health care facilities have an ASSE 6030 qualified employee in their maintenance plumbing department.

NFPA 99’s Standard clearly states that “When systems have not been installed by in-house personnel, testing shall be permitted by personnel of that organization who meet the requirements of” This allows health care facilities the means to save money every year while being pro-active in reducing patient risk.

Using our A2LA Accredited Laboratory for your analytical needs assures you that our laboratory staff, test equipment and methods, quality assurance of test and calibration data have met or exceeded internationally accepted standards (ISO/IEC 17025).

If you prefer a 3rd party to conduct your testing for compliance with NFPA 99’s requirements for Piping Purity, Piping Particulate and Medical Gas Concentration Test, we are happy to recommend an AirCheck™ Distributor in your area – Contact Us for more information.

Medical Gas Testing for Installers & Verifiers

Trace Analytics offers bulk discounts to medical gas testing installers and verifiers. Our prices are very competitive; we also offer our AirCheck™ Distributors discounts depending on volume. We are always searching for quality installers and verifiers to refer to our customers that prefer 3rd party verification of their systems. If you are an installer or verifier, please contact us to determine how we can support your medical air & medical gas testing requirements. Request a brochure regarding our Medical Gas Testing Distributor Program and pricing.

Trace Analytics, LLC is an A2LA Accredited Laboratory and a proud member of MGPHO.

Our AirCheck™ Team of Experts is always happy to assist you with your needs. We understand that you have choices and time is money. See firsthand why Trace Analytics is number one in customer satisfaction. We value our customers and that is why our customers stay with us voluntarily, not because they are mandated by a contract.

Hyperbaric Facilities

The AirCheck Kit™ K901 can be used to obtain routine samples to satisfy NFPA 99’s requirements for Medical Air and CGA Grade D for Class A or Class B chambers. These samples are simple and straight-forward and can easily be taken by hyperbaric facility maintenance personnel to satisfy your hyperbaric test needs.

Medical Air & Gas Air & Gas Testing Specifications

Trace Analytics, LLC can test to a wide variety of specifications. Some example specs commonly used in Medical Air & Gas are shown below:

Medical Gases - Selected Air Quality Specifications

NFPA 99 Sections(s) Description Test Gas Sampling Media Concentration Limits for NFPA 99 Parameters (See Definitions Below)
Dew Point °F O2
vol %
vol %
vol %
Oil + Part.
mg/m3 Medical Air Purity Test Air SB 25 (T) 2 10 500 1544 35 19.5-23.5 N/A N/A N/A N/A Medical Air Purity Test
& CGA G-7.1 Grade D
Air SB + F 25 (T) 2 10 500 1544 35 19.5-23.5 N/A N/A N/A 5 Medical Gas Concentration Test Air SB N/A N/A N/A N/A N/A N/A 19.5-23.5 N/A N/A N/A N/A Medical Gas Concentration Test N2 SB N/A N/A N/A N/A N/A N/A ≤ 1 ≥ 99 N/A N/A N/A Medical Gas Concentration Test N2O SB N/A N/A N/A N/A N/A N/A N/A N/A ≥ 99 N/A N/A Medical Gas Concentration Test O2 SB N/A N/A N/A N/A N/A N/A ≥ 99 N/A N/A N/A N/A
Piping Particulate Test (O) N2 F N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 1 Piping Purity Test Air SB ± 5 (H) ± 5 (H) N/A N/A 500 10 N/A N/A N/A N/A N/A Piping Purity Test N2 SB ± 5 (H) ± 5 (H) N/A N/A 500 10 N/A N/A N/A N/A N/A Piping Purity Test N2O SB ± 5 (H) ± 5 (H) N/A N/A 500 10 N/A N/A N/A N/A N/A Piping Purity Test O2 SB ± 5 (H) ± 5 (H) N/A N/A 500 10 N/A N/A N/A N/A N/A
N/A USP Medical Air-2011 (M1) Air SB + F + DT2 N/A N/A 10 500 N/A N/A 19.5-23.5 N/A N/A 5 / 2.5 N/A
Sampling Media: SB = Source Bottle F = Filter DT = Water Vapor Detector Tube DT2 = SO2 and NOx Detector Tubes
THC = Total Gaseous Hydrocarbons, ppmv CO2 = Carbon Dioxide, ppmv O2 = Oxygen, volume % Oil = Oil Mist & Particulate, mg/m3
CO = Carbon Monoxide, ppmv H2O = Water, ppmv HH = Halogenated Hydrocarbons N2 = Nitrogen, volume %
CH4 = Methane, ppmv SO2 / NOX = Sulfur Dioxide / Nitric Oxide & Nitrogen Dioxide DP = Dew Point, °F at 50 psig
(T) Includes Methane
Air & Gas Specifications referenced above may be viewed and/or purchased from: NFPA - National Fire Protection AssociationUSP - U.S. Pharmacopeial Convention

Informational Links

“This guidance makes recommendations that will help hospitals, nursing homes and other health care facilities avoid the tragedies that result from medical gas mix-ups.” Guidance for Hospitals, Nursing Homes, and Other Health Care Facilities – FDA Public Health Advisory read more

Use of Trichloroethylene Found to Contaminate Bulk Oxygen Tank. Hospital Deaths by Ervin Moss, M.D., and Fred Evans read more

“I hope that I have raised the level of awareness of the magnitude that all piped medical gas distribution systems play in directly influencing patient outcomes.” The Patient Safety Advocate Role of Piped Anesthesia/Medical Gas Professionals by Edward J. Lyczko read more